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Modular Distribution System JPBD and LPBD Series Protected Battery Disconnects Modular Distribution System Mounting Rail Detail 226 Four Position Rear Connect 227 Four Position Top Connect 228 Eight Position Rear Connect 229 Eight Position Top Connect 2230 Decision Tables 231 JPBD and LPBD Series Protected Battery Disconnects 224 JPBD Series PBD 233 JPBD Wall & Frame Mounts 235 JPBD Bus Bar Specifications 236 JPBD Series Schematics 238 JPBD Series Decision Table 238 LPBD Series PBD 239 LPBD Wall & Frame Mounts 240 LPBD Series Schematics 242 LPBD Bus Bar Specifications 242 LPBD Series Decision Table 243 Airpax provides circuit on demand from a pre-wired power bus. The Modular Distribution System utilizes “plug ’n play” capabilities to simplify the design of your power bus system. The module design simplifies line/load interface, saving both money and valuable time by eliminating the need for shutdown when expanding the equipment. Additionally, this flexible interface allows for adjacent circuits to be fused or protected, while parallel alarm conductors simplify signal wiring. By specifying the number of protected circuits, the Modular Distribution System can be designed to meet your application requirements. Airpax, known for our high quality products and outstanding customer service, once again sets the standard in innovative and precision technology with our new Modular Distribution System. Modular Distribution System 225 Modular Distribution System Modular design provides unprecedented flexibility Hot Plug modules allow for equipment expansion without power shutdown Unique alarm conductors simplify signal wiring Module load terminals available with top or rear access Modular Distribution System SCALE: 1/2 Mounting Rail Detail .787 REF. .445 ±.015 2X R.225 ±.030 1.250 ±.010 .625 Ø .250 ±.015 .107 ±.018 SCALE: FULL Mounting rails are available in 36 inch lengths. Airpax Part Number 647-230-5250. Consult factory for ordering information. 226 Modular Distribution System Four Position Rear Connect 2.710 .921 INSIDE INSULATOR SURFACE INSULATOR 8 X .625 Modular Distribution System 2.897 2.672 3.336 1.234 2 X .835 RAIL MOUNT SCREWS (2 SCREWS TO SECURE INSULATOR, REMAINING SCREWS SUPPLIED IN HARDWARE KIT) 1.028 .046 3.251 LEAD WIRE 18 GAGE (BLACK - COMMON, WHITE - NC, RED - NO) 4 X .640 8 X 1/4 X 20 UNC SCREW 3 X .787 4 X .625 1.574 2 X 3/8 X 16 UNC SCREW 3.989 Modular Distribution System 227 Four Position Top Connect INSIDE INSULATOR SURFACE 1.079 2 X .482 8 X .625 INSULATOR Modular Distribution System 1.592 2.210 2.897 1.683 3.336 1.234 2 X .835 RAIL MOUNTING SCREWS (2 SCREWS TO SECURE INSULATOR, REMAINING SCREWS SUPPLIED IN HARDWARE KIT) 1.028 .046 3.251 4 X .640 LEAD WIRE 18 GAGE (BLACK - COMMON, WHITE - NC, RED - NO) 3 X .787 4 X .625 8 X 1/4 X 20 UNC SCREW 1.574 3.989 228 Modular Distribution System 2 X 3/8 X 16 UNC SCREW Eight Position Rear Connect 2.710 .921 INSIDE INSULATOR SURFACE INSULATOR 16 X .625 Modular Distribution System 2.897 2.672 3.336 1.234 4 X .835 1.028 RAIL MOUNTING SCREWS (2 SCREWS TO SECURE INSULATOR, REMAINING SCREWS SUPPLIED IN HARDWARE KIT) .046 3.251 LEAD WIRE 18 GAGE (BLACK - COMMON, WHITE - NC, RED - NO) 8 X .640 7 X .787 16 X 1/4 X 20 UNC SCREW 8 X .625 1.574 1.574 4 X 3/8 X 16 UNC SCREW 1.574 7.137 Modular Distribution System 229 Eight Position Top Connect INSIDE INSULATOR SURFACE 1.079 4 X .482 16 X .625 INSULATOR Modular Distribution System 1.592 2.210 1.683 2.897 3.336 1.234 4 X .835 RAIL MOUNTING SCREWS (2 SCREWS TO SECURE INSULATOR, REMAINING SCREWS SUPPLIED IN HARDWARE KIT) 1.028 .046 3.251 LEAD WIRE 18 GAGE (BLACK - COMMON, WHITE - NC, RED - NO) 7 X .787 8 X .640 27,41 27,41 27,41 12,24 12,24 12,24 12,24 12,24 8 X .625 16 X 1/4 X 20 UNC SCREW 1.574 1.574 1.574 7.137 230 Modular Distribution System 4 X 3/8 X 16 UNC SCREW Modular Distribution System Decision Table 1 2 First Decision Second Decision Number of Positions* Modular Distribution System Code -4 4 position -8 8 position -12 12 position -16 16 position -20 20 position *Consult factory for additional options. 3 4 Third Decision Thread Type -B Standard Consult factory for metric thread information. Example: Fourth Decision Load Terminal Access -T Top -R Rear 270 - 8 - B - R - T 1 2 3 4 5 5 Fifth Decision Plating* -S Silver -T Tin Modular Distribution System *Consult factory for additional options. Notes: 1 This specification covers Airpax four and eight position Modular Distribution Systems for LEL, LML, IEL, IML type circuit protec tors using 5/16 inch diameter bullet terminals. 2 High-Low Temperature Operation: The Modular Distribution System shall operate in a range from -40°C to +85°C. 3 Dielectric Strength: The Modular Distribution System shall withstand DC voltage for 60 seconds between all electrically isolated parts as follows: Between line and load bus bars: Minimum 2000 VDC Between line and load bus bars and aux. switch contact strips: Minimum 2000 VDC Between line and load bus bars and clamp up rods: Minimum 2000 VDC 4 Insulation Resistance: Shall not be less than 100 megohms at 500 volts DC. 5 Flammability: All Modular Distribution System parts have an U.L. 94 V-O flammability rating. 6 Electrical Ratings: Current Ratings: Maximum load bus rating per position is 100 amps. Maximum common bus rating of the eight position Modular Distribution system is 600 amps. Maximum common bus rating of the four position Modular Distribution System is 300 amps. Voltage Rating: 125 VDC max. 7 Recommended Torque Specifications: Load bus 1/4 - 20 UNC 72 inch pounds Line bus 3/8 - 16 UNC 192 inch pounds Mounting channel #10 x 0.750 long 20 inch pounds 8 Auxiliary Switch Wire Rating: 200° C; 600 volts; UL recognized (UL 1199) 9 Ampacity: Line bus @ 600 amps: 850 amps/sq inch Line bus @ 300 amps: 850 amps/sq inch Load bus @ 100 amps: 1140 amps/sq inch 10 Plating: Common and load bus bars are available with either silver or tin plating. Silver Plating: The plating of the louvertec bands of the Airpax circuit protectors used in the Modular distribution System are silver plated. Silver plated bus bars on the Airpax Modular Distribution System product significantly reduce the possibility of galvanic corrosion. Tin Plating: The use of tin plated bus bars with the silver plated louvertec bands on the circuit protector increases the possibility of galvanic corrosion at the joint interface. The use of a conductive polymer such as Stabilant 22 or CAIG 100 is recommended with both silver plated and tin plated bus bars in order to negate galvanic corrosion and to improve the conductivity of the joint interface. 11 Beryllium Copper Contact Strip: Beryllium copper strips are used to conduct current to and from the terminals of the circuit protector auxiliary switch. The beryllium copper strips have a minimum compression set and will return to their original size with as much as a 30% deflection. Repeated insertion and removal of the circuit protector in this application will have an insignificant effect on the contact force between the auxiliary switch terminals and the beryllium copper strips. Modular Distribution System 231 JPBD and LPBD Series Protected Battery Disconnects Telecommunication networks are highly reliable, with interruptions being predominately uncommon. To further reduce the unlikely event of an interruption, battery systems provide the critical backup power to keep these networks online. These battery backup systems also present a potential hazard to firefighters, emergency and maintenance personnel, making the need to provide a remote or manual disconnect function more critical. Two versions of the Airpax Protected Battery Disconnect provide highly effective and versatile solutions to address the issues associated with battery system applications. The JPBD and the LPBD series of Airpax Protected Battery Disconnects feature engineering and design innovations optimizing safety and operational requirements for a wide range of applications. Protected Battery Disconnect 233 JPBD Series Protected Battery Breaker Disconnects Disconnect and overcurrent protection Disconnecting batteries in the event of an emergency or for maintenance has just become much easier with Airpax Protected Battery Disconnects (PBD). A key component of the Airpax Manual and remote disconnect capability disconnect product is the JTEP/JTMP circuit breaker packaged Completely front accessible in a completely front accessible enclosure. The JTEP/JTMP 24 -160VDC operation is UL489A Listed for use in communications equipment. Wall, rack or battery stand mounting In addition to overcurrent protection and switching capability, LED indication of power n, off and/or tripped condition applying a voltage signal to the optional remote trip circuit allows Standard ratings of 200, 600, 800, 1000 and 1200 amps batteries to be disconnected from a remote location. Optional alarm and meter shunt functions can also be provided, eliminating the Optional alarm circuit need to design these functions in separately. Optional meter shunt JPBD and LPBD Series Ratings Current Rating Voltage Interrupt Capacity 200 - 1200 amps 65 VDC 50,000 amps 200 - 800 amps 160 VDC 10,000 amps Application Manually or remotely disconnect batteries in communications networks. Voltage While primarily used in +24 and -48VDC circuits, Airpax disconnects will operate at any voltage up to 65VDC. (For higher voltages please consult the factory.) Terminations Standard bus plates are configured for two hole telecom lugs. Consult factory for various bus plate configurations. Mounting Airpax disconnects can be wall mounted or mounted on a battery stand. A rack mount version is also available. 234 Protected Battery Disconnect Operating Ambient -40° to +60°C. Optional Alarm An optional alarm circuit indicates power on, power off and/or tripped condition. The alarm feature can easily be accessed via a small terminal block at the top of the unit. Optional LED Indication Optional LEDs on the front of the unit can visually indicate power on, power off, and/or tripped condition. Optional Remote Trip Capability Airpax battery disconnects can be activated from a remote location allowing a safe means of disconnecting batteries in the event of a fire or other types of emergencies. A terminal block at the top of the unit provides convenient termination points. It is recommended that a two amp switch be used to activate the remote trip feature. Listed under ULFileE220375 UL ® Optional Meter Shunt An optional 25mv at rated current, non-isolated meter shunt is available. Limited to current ratings of 800 amps max. Wall & Frame Mount 200 - 800 Amp 6.120 [155.45] 2.920 [74.17] DIMENSION INDICATES CLEARANCE FOR CABLE ENTRY DIMENSION INDICATES CLEARANCE FOR CABLE ENTRY WITHOUT CABLE MANAGEMENT 3.125 [79.38] 4.000 [101.60] WITH CABLE MANAGEMENT 6.250 [158.75] 6.500 [165.10] LED INDICATION LEFT OR RIGHT FRAME MOUNT OPTIONAL .710 [18.03] 4X Ø .275 4.125 [104.77] 17.000 [431.80] 20.000 [508.00] 8.062 [204.77] 6.100 [154.94] 22.500 [571.50] 23.500 [596.90] .981 [24.92] 1.750 [44.45] 600 Amp PBD 3.000 [76.20] Note: Cover omitted from orthographic views for clarity. 6.120 [155.45] Wall Mount 1000 - 1200 Amp 2.920 [74.17] DIMENSION INDICATES CLEARANCE FOR CABLE ENTRY DIMENSION INDICATES CLEARANCE FOR CABLE ENTRY LED INDICATION 9.500 [241.30] 6.250 [158.75] 3.000 [76.20] 17.000 [431.80] JPBD and LPBD Series WITH CABLE MANAGEMENT WITHOUT CABLE MANAGEMENT 7.000 [177.80] 20.000 [508.00] 23.500 [596.90] 22.500 [571.50] Note: Cover omitted from orthographic views for clarity. 600 Amp PBD Note: All dimensions shown in inches. Tolerance is ± .015 unless noted. Protected Battery Disconnect 235 JPBD and LPBD Series Rating Number of Poles Dim. “A” 800-1200 amps 6 10.5 [266.70] 100-600 amps 3 5.255 [133.48] 1.200 [30.48] 4.912 [124.77] 1 200 HANDLE GUARD OPTIONAL Note: All dimensions shown in inches. Tolerance is ± .015 unless noted. DIM “A” (SEE TABLE) 236 Protected Battery Disconnect 400, 600, 800, 1000 and 1200 Amp Bus Bar Specifications 5.360 3.250 .500 1.750 1.750 1.750 3.250 1.750 3.250 4.500 Ø.531 TYP. 800 AMP 400 AMP Max. Lug Number 1200 amps 800 MCM 4 max. 1000 amps 800 MCM 3 max. 800 amps 777 MCM 3 max. 600 amps 777 MCM 2 max. 400 amps 777 MCM 2 max. Figure 3 Figure 1 3.860 Notes: 1. This specification covers Airpax battery disconnect bus bars from 400 amps to 1200 amps. Two through six pole construction. 6.860 Ø.531 TYP 1.750 2.060 2.060 2. Finish: .001” copper undercoat followed by a .00005” - .0001 tin plating with brighteners added. Reference ASTM B - 54592 regarding tin plating and solderability requirements. 1.750 1.750 3.250 Max. Lug Size 4.500 Ø.531 TYP. .500 Amperage .500 1.750 3.250 4.500 4.500 3. Min./Max. Torque Requirement: 1/2 - 13 UNC… 460 - 555 inch pounds. 4. Special bus plate hardware available. Consult factory. Ø.531 TYP. 1.500 600 AMP 1000 AMP Figure 2 Figure 4 8.360 1.090 2.060 TYP Ø.531 TYP Note: All dimensions shown in inches. Tolerance is ± .015 unless noted. .500 1.750 3.250 JPBD and LPBD Series 4.500 1200 AMP Figure 5 600 Amp Bus Bar for Top/Bottom Cable Connection 4.500 4.110 1.032 1.000 2.078 1.000 2.078 3.750 3.750 5.000 1.750 Ø.531 TYP 1.750 5.000 Ø.531 TYP 8.360 Protected Battery Disconnect 237 JPBD Series Schematics LED R OR LED G C LED R LED R L E D L E D C SERIES TRIP NO INDICATION FIG. 1 FIG. 2 C C NO NO NC NO NO ALM1 ALM1 ALM2 ALM1 RED RED OR GREEN FIG. 9 NC NC LED INDICATES BREAKER ON (NO ELECTRICAL ALARM) (6th DEC. OPT. 2 OR 6) NO NC NC LED LED INDICATES OFF AND ISOLATED ALARM CIRCUIT (6th DEC. OPT. 1) NC NC COMBINATION LED AND ALARM CIRCUIT INDICATES BREAKER OFF (6th DEC. OPT. 1) LED INDICATES ON AND ISOLATED ALARM CIRCUIT (6tH DEC. OPT. 2 OR 6) FIG. 11 FIG. 10 NO NC NC LED VT1 C C RED OR GREEN NO LED LED LED INDICATES BREAKER OFF (NO ELECTRICAL ALARM) (6th DEC. OPT. 1) VT2 L E D C RED NO TERMINAL BLOCK ALM2 L E D C NO FIG. 8 TERMINAL BLOCK ALM2 C NC ISOLATED ALARM CIRCUIT INDICATES BREAKER OFF FIG. 7 TERMINAL BLOCK ALM2 C C C SERIES TRIP WITH REMOTE DISCONNECT LED INDICATES BREAKER ON OR OFF (6TH DEC. OPT. 3) FIG. 6 ALM1 NO NC SERIES TRIP WITH REMOTE DISCONNECT LED INDICATES BREAKER ON (6th DEC. OPT. 2 OR 6) TERMINAL BLOCK ALM1 L E D NO FIG. 5 ALM2 C NC C NC FIG. 4 TERMINAL BLOCK ALM2 LED R L E D L E D NO SERIES TRIP LED INDICATES ON/OFF STATE (6th DEC. OPT. 3) TERMINAL BLOCK NO VT2 VT1 LED G NC FIG. 3 ALM1 VT1 C L E D NO SERIES TRIP LED INDICATES BREAKER ON (6th DEC. OPT. 1) SERIES TRIP LED INDICATES BREAKER OFF (6th DEC. OPT. 2 OR 6) VT2 L E D C NC NC TERMINAL BLOCK TERMINAL BLOCK LED R LED G NO NO SWITCH ONLY TERMINAL BLOCK TERMINAL BLOCK TERMINAL BLOCK COMBINATION LED AND ALARM CIRCUIT INDICATES BREAKER ON (6th DEC. OPT. 2 OR 6) FIG. 13 FIG. 12 LED RED LED INDICATES OFF, ISOLATED ALARM CIRCUIT & REMOTE DISCONNECT (6th DEC. OPT. 1) FIG. 14 FIG. 15 TERMINAL BLOCK ALM2 ALM1 VT2 TERMINAL BLOCK TERMINAL BLOCK VT1 MS2 MS1 C1 MS2 LED R LED R NO NO NC NO NC L E D Type JTEPBD Series Trip JTMPBD Mid-Trip LED INDICATES BREAKER ON, REMOTE DISCONNECT, METER SHUNT FIG. 19 FIG. 20 4 Second Decision VT2 VT1 LED G LED R L E D L E D NO Fourth Decision NC SERIES TRIP WITH REMOTE DISCONNECT, LED INDICATES BREAKER OFF RED, ON GREEN (6th DEC. OPT. 3) 6 Notes: 1. All configurations are available with remote disconnect. 2. All schematics shown with circuit breaker in off position. FIG. 21 System Voltage Aux. Switch First Decision LED R L E D NC LED INDICATES BREAKER OFF, REMOTE DISCONNECT, METER SHUNT FIG. 18 2 VT1 NO NO COMBINATION LED & ALARM CIRCUIT INDICATES ON. METER SHUNT FIG. 17 JPBD Series Decision Table VT2 C NC FIG. 16 JPBD and LPBD Series NO NC COMBINATION LED & ALARM CIRCUIT INDICATES OFF. METER SHUNT LED INDICATES ON, ISOLATED ALARM CIRCUIT & REMOTE DISCONNECT (6th DEC. OPT. 1 OR 6) MS1 C NC RED Sixth Decision LED Indication 0 Switch only 1 24 Volts DC 0 No indication 1 Series Trip 2 48 Volts DC 1 Red indicating disconnected only (off) 2 REC4 - electrical/mechanical alarm 3 72 Volts DC 2 Green indicating connected only (on) 3 1RLS4 - electrical trip alarm only 4 160 Volts DC 3 Red (off), green (on) indication 6 Red indicating (on) Dual aux. switches available (consult factory). Example: JTEPBD - 0 - D - 1- W - 1 - A - 2 - M 8 Eighth Decision (Optional) Remote Disconnect Voltage 1 3 Third Decision Current Rating 5 Poles 2 3 4 5 6 7 8 9 Fifth Decision 200 amps 1 W Wall mount C 250 amps 1 WT Wall mount top load only D 400 amps 2 WB Wall mount bottom load only E 600 amps 3 FR* Frame mount (right) F 800 amps 4 FL* Frame mount (left) R1 19 inch rack mount R2 23 inch rack mount H J 1000 amps 1200 amps 350 amps 5 6 2 Refer to Airpax specification AM-374 for detailed circuit breaker information. Protected Battery Disconnect 7 *100-800 amp only Seventh Decision Bus Bar Code Mounting B G 238 MS2 LED R C LED 1 VT1 C C C VT2 MS1 L E D L E D C MS2 TERMINAL BLOCK TERMINAL BLOCK TERMINAL BLOCK C1 MS1 A Thru hole connection B Threaded connection 0 No remote 1 24 VDC 2 48VDC 3 120VAC 4 240 VAC 9 Refer to Bus Bar Specifications on page 235. Ninth Decision (Optional) Options M Metering shunt (800 amp max.) G Handle guard (rack mount only) C Cable management (both ends) T Cable management (top only) B Cable management (bottom only) One or more options may be specified as required. LPBD Series Protected Battery Breaker Disconnects LPBD with Standard Bellcore Lock Disconnecting batteries in the event of an emergency or for maintenance has just become much easier with the Airpax LPBD battery disconnect. Maximum ratings of 200 amps @ +24 or -48VDC make the LPBD ideal for outside plant, cell site, central office and co-location applications. The LPBD is available in wall mount, rack mount, custom and NEMA enclosure configurations in package sizes that require minimal space. In addition to the disconnect function the LPBD also provides over current protection and provides a fault interrupt rating of 50,000 amps. The LPBD can be supplied with an optional remote disconnect feature allowing batteries to be disconnected LPBD for through cabinet wall installation with an emergency shut down switch at the service entrance of a site or from a remote monitoring center. This key feature helps address increasingly stringent requirements of local Fire Marshall’s and pending NEC requirements. In addition to remote disconnect capability the LPBD can also be configured JPBD and LPBD Series to remotely reconnect battery circuits. Disconnect and overcurrent protection Manual and remote disconnect and reconnect capability Completely front accessible +24 and -48VDC operation Wall, rack or battery stand mounting Optional NEMA enclosure LED indication of power on, off and/or tripped condition Standard ratings of 50, 100, 125, 150 and 200 amps Optional alarm circuit Standard Bellcore Lock LPBD Inside Wall, Surface & Frame Mount Protected Battery Disconnect 239 Ratings Current Rating Voltage Interrupt Capacity 50 - 100 amps 80 VDC max. 50,000 amps 125 - 200 amps 65 VDC max. 50,000 amps Application Manually or remotely disconnect batteries in communications networks. Remote reconnect. Consult factory. Voltage While primarily used in +24 and -48VDC circuits, Airpax disconnects will operate at any voltage up to 80VDC. LPBD Outside Wall, Surface Mount 1.000 [25.40] Terminations Consult factory for various bus plate options. Bus plates are configured for two hole telecom type lugs. 6.128 [155.64] Mounting Airpax disconnects can be wall mounted or mounted on a battery stand. A rack mount version is also available. Consult factory for additional information. TAMPER RESISTANT LOCK 1.000 [25.40] SECTION A-A Operating Ambient -40 to +60°C. 6.375 [161.92] JPBD and LPBD Series Optional Alarm An optional alarm circuit indicates power on, power off or tripped condition. The alarm feature can easily be accessed via a small terminal block within the unit. .900 [22.86] A 7.375 [187.33] Optional LED Indication Optional LEDs on the front of the unit can visually indicate power on, power off, and/or tripped condition. A Optional Remote Trip Capability Airpax battery disconnects can be activated from a remote location allowing a safe means of disconnecting batteries in the event of a fire or other types of emergencies. A terminal block is provided for convenient termination. Remote Reset Capability Battery circuits can be reconnected remotely by applying a voltage signal to the optional remote actuator. A terminal block is provided for convenient termination. 2.364 [60.05] 1.614 [41.00] Ø 2.060 (2" NPT) Notes: 1. Enclosure designed to NEMA type 3 . “Rain Tight” specification. 2. “Connection Kit” hardware included. 240 Protected Battery Disconnect 2.600 [66.04] 1.000 [25.40] 2.890 [73.41] 4.750 [120.65] LED INDICATION 8X 3/8-16 UNC-2B 14.000 [355.60] LPBD Inside Wall, Surface & Frame Mount 1.000 [25.40] 1.375 [34.92] JPBD and LPBD Series 4.435 [112.65] 3X Ø .300 .180 [4.57] 13.000 [330.20] 8.625 [219.08] 12.000 [304.80] 4X .312 [7.92] 1.425 [36.19] 4X .687 [17.45] 2.850 [72.39] Protected Battery Disconnect 241 LPBD Series Schematics C C NO NO SERIES TRIP LED INDICATES BREAKER OFF NC SERIES TRIP NO INDICATION SWITCH ONLY SERIES TRIP LED INDICATES BREAKER ON NC LED LED TERMINAL BLOCK TERMINAL BLOCK C C NO NO SERIES TRIP LED INDICATES ON/OFF STATE SERIES TRIP WITH REMOTE DISCONNECT LED INDICATES BREAKER ON NC NC LED LED Notes: 1. All configurations are available with remote disconnect. 2. All schematics shown with circuit breaker in off position. LED TERMINAL BLOCK TERMINAL BLOCK LPBD Series Specifications Recommended Lugs for LPBD (indoor) 1.375 Wire Size Part No. MFG 250 MCM 256-30695-1245P Thomas & Betts 250 MCM CL-250-2-3/8 Southport Ind. 250 MCM CLL-25-20-3/8 Southport Ind. 250 MCM GL250N-38 Nsi Industries 250 MCM BLU-025D3 Penn Union 250 MCM YA29L-2TC38 Burndy JPBD and LPBD Series 3/8-16 UNC-2B 1.000 Bus Bar Details .500 MINIMUM CLEARANCE BETWEEN LUG AND HOUSING (BOTH ENDS) Recommended Lugs for LPBD (outdoor) Notes: 1. Bus Bar Finish: Tin over copper undercoat 2. Torque value for bus bar connections: 225-270 inch pounds. 242 Protected Battery Disconnect Wire Size Part No. MFG #4 256-30695-1159PH Thomas & Betts #4 256-30695-1161PH Thomas & Betts 1/0 256-30695-1162PH Thomas & Betts 2/0 256-30695-116P Thomas & Betts 3/0 54816BEPH Thomas & Betts 4/0 256-30695-1117P Thomas & Betts LPBD Series Decision Table 1 2 First Decision Second Decision Aux. Switch Type LEPBD Series Trip 0 Switch only LMPBD Mid-Trip 1 Series Trip 2 1REC4 - electrical/mechanical alarm 3 1RLS4 - electrical trip alarm only Dual aux. switches available (consult factory). 3 A LEPBD - 1 - C - 2 - A - 3 - 2 - L 1 2 3 4 5 6 7 8 50 amps Fourth Decision System Voltage Poles 1 1 24 VDC 48 VDC B 75 amps 1 2 C 100 amps 1 3 80 VDC D 125 amps 2 4 12 VDC E 150 amps 2 F 175 amps (UL 489A) 2 H 175 amps 3 J 200 amps 3 K 250 amps 3 Refer to AM-374 STD 5000 AIC 80 VDC 5 Fifth Decision 6 Enclosure Type Sixth Decision LED Indications A Inside wall, surface and frame mount 0 No indication C 19" rack mount 1 Red indicating disconnected only (off) 2 Green indicating connected only (on) 3 Red (off) / Green (on) indication 5 Red indicating on JPBD and LPBD Series Example: 4 Third Decision Current Rating Consult factory for other combinations. 7 Seventh Decision 8 0 No remote trip 1 24 VDC 2 48 VDC 3 120 VAC 4 240 VAC Eighth Decision Options Remote Disconnect Voltage L Handle lock* *See Airpax specification AM-371 Remote turn on ROCB available (50-100 amps). Consult factory. Available up to 150 amps. Protected Battery Disconnect 243 Power Protection Products Glossary Ambient Temperature: Temperature of medium, such as air, water or earth, into which heat of device is dissipated. Ampacity: Current-carrying capacity of electrical conductor or device. Arcing Time: (As used for fuses) is measured from point when element melt time ends to point when current is interrupted and permanently becomes zero. If mechanical indicator is used which incorporates secondary element parallel to fusible equipment, arcing time will commence from point at which indicator melt time ends. Circuit protector arcing time is measured from the moment of contact separation to the point when the current permanently drops to zero. Automatic: Self-acting, operating by own mechanism when actuated by some impersonal influence, such as change in current strength, pressure, temperature or mechanical configuration. Branch Circuit: Portion of wiring system extending beyond final over-current device protecting circuit. Busbars: Current-carrying conductors in power distribution equipment, such as unit substations, busways, etc. Usually solid copper and rectangular shaped rather than round. Cascade Circuit: Circuit in which more than one protector is connected in series between power source and load. (See Coordination.) Circuit Breaker: Device used to open and close circuit by nonautomatic means, as well as to open circuit automatically on predetermined overload current without injury to itself (when properly applied within its rating.) Glossary Circuit Breaker, Non-trip-free: Breaker designed so that circuit can be held closed by restraining handle when carrying overload current that would normally trip breaker to open position (Not normally recommended.) Circuit Breaker Trip-free: Breaker whose pole(s) cannot be maintained closed when carrying over-load currents that would automatically trip breaker to open position. None of the circuit breaker poles would reclose while operating mechanism is maintained in closed position. Common Trip: Multi-pole circuit breaker in which overload on any pole will cause all poles to open simultaneously. Conductor: Material that has attached to its atoms many “free” electrons which may be detached easily by electrical pressure or voltage. Silver, copper and aluminum are good conductors. Thus any material or wire that is used to carry electric current. 244 Power Protection Products Glossary Coordination: Ability of protector with lowest rating (in cascade arrangement) to open before protectors with higher rating when fault occurs downstream from lowest rated protector. (See Cascade Circuit.) Current Limitation: Ability of protective device to reduce short-circuit peak current to value less than that which would be available if no protective device was in circuit. Current Rating (Continuous): Maximum direct current or alternating current in amperes at rated frequency which protective device will carry continuously under defined conditions without exceeding specified performance limits. Current-responsive Element (Fusible Elements): Part of fuse or limiter which carries current and melts when current exceeds predetermine value. Disconnect: Device through which conductors of circuit can be disconnected from their source. Duty Continuous: Requirement of service that demands operation at substantially constant load for an indefinitely long time. Duty Intermittent: Requirement of service that demands operation for alternate intervals of (1) load and no load; or (2) load and rest; or (3) load, no load and rest. Effective Voltage (or Current): Effective value of sinusoidal voltage or current is 0.707 times peak value. Also designated RMS value (Root Mean Square). When AC voltage is referred to effective value is understood unless otherwise noted. Symbols E and I without subscripts indicate effective values. Element Melt Time: Time elapsed from moment fusing current begins to flow until moment current sharply drops in value and arcing commences. Fault: Abnormal flow of current through defect in normal circuit configuration. Commonly referred to as short circuit. Fault Current: (See Short-circuit Current.) Feeder: Circuit conductors between service entrance equipment and branch circuit overcurrent device. Fuse: Device which protects circuit by melting of its current responsive element when overcurrent passes through it. Fuse Dual Element: Time-delay fuse combines thermally controlled element which functions in case of overload and fusible element which operates under short circuit. Fuse Normal Opening (Fast-acting): Opens circuit without deliberate time-delay. Fuse Time-delay: Fuse that has its total clearing time deliberately delayed in overload current range. Fuse Very Fast-acting: Fuse that opens circuit without deliberate time delay and whose short-circuit opening time is faster than normal opening fuse. Instantaneous Trip (Opening): “Instantaneous” indicates delay is not introduced purposely into action of device. Insulator (or Dielectric): Material that is very poor conductor of electricity. Mica, glass, porcelain, rubber, paper, plastic, oils and varnishes are considered good insulators. Interrupting Capacity: Maximum short-circuit current at rated voltage which protective device is required to interrupt under operating duty specified and with normal frequency recovery voltage not less than rated voltage. (See Rupture Capacity.) Recovery Voltage: Voltage impressed across protective device after circuit has been interrupted and after high frequency transients have subsided. Rupture Capacity: Applied to reusable protective devices. (See Interrupting Capacity.) Selective System: System in which protective device closest to faulted circuit opens and isolates that circuit without disturbing remainder of system. (See Coordination.) Short-circuit Current (Fault Current): Maximum current that system can produce at point of application of protective device. Time-delay: Qualifying term indicating that there is introduced purposely delayed action. Time-inverse: Time-current relationship where protective device opening time decreases as current increases. Inverse-time: (See Time-inverse.) Let-through Current: Current that actually passes through protective device after initiation of fault. Minimum Fusing Current: Smallest value of current that will melt current responsive element at specified ambient temperature. Total Clearing Time: Time measured from beginning of specified overcurrent condition until permanent interruption of circuit. Total clearing time for fuse of limiter is equal to sum of melting item and arcing time. Ultimate Trip Current: Minimum current which will provide a reliable trip on the breaker (typically 115 percent of rated current.) Voltage Drop: Fall of voltage along conductor due to its resistance. Overcurrent: Any current exceeding rated current of protective device (exceeding maximum ultimate trip current for circuit breakers.) This includes both overload and short-circuit currents. Voltage Drop (Distribution System): Difference at any instant between voltages at source and utilization ends of feeder, branch circuit or transformer. Overload Current: Overcurrent in excess of current rating. Overload range is considered to be greater than rated current up to approximately ten times rated current. Voltage Rating: Maximum alternating current and/or direct current voltage at which protective device is designed to operate. Panelboard: Single group of assembled panels which include fuses. Assembled with or without switches and/or automatic overcurrent protective devices for control of light, heat or power circuits of small individual and aggregate capacity. Usually placed in or against wall or partition and accessible only from front. Voltage Regulation: Measure of change in voltage between no load and full load in terms of full load voltage. Phase-to-phase: Voltage measured between any two “corners” of delta connection or between any two “legs” of wye connection. Voltage Peak: Voltage or current of AC sinusoidal wave when it reaches its peak or maximum level twice in cycle. These peaks are only a point of each 1/2 cycle. Direct current voltage is really peak voltage at all times. Glossary Kilowatthour (KWH): Electrical energy expended if 1 kilowatt is used for 1 hour. Watt (W or P): Unit of electrical power which represents amount of power of circuit when current in that circuit is 1 ampere and voLtage is 1 volt. Protective Device: Devices which respond to harmful abnormal conditions in electric distribution system and function to open parts of circuit which will isolate cause of disturbances and so permit remainder of system to function normally. Power Protection Products Glossary 245