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Voltage control relay EUL / EUH ■ Space savings, accurate measurement and optimized functions all improve the efficiency of your electrical installation ■ With these relays you can be sure your equipment is working in the correct conditions, by checking the supply voltage. ■ Control : Select “Over-voltage” or “Under-voltage” control mode, by means of a dip switch. ■ Safety : Choose whether or not to activate the fault memorisation function and the delay on threshold crossing in the same way. ■ Accuracy : 2 products, EUL or EUH for greater accuracy of measurement, provided by a microcontroller. Type Operating principle Measurement range Control of AC / DC voltage without memory Part numbers (and voltages) When the value of the controlled voltage, AC or DC, reaches the threshold Ue displayed on the front face, the output relay changes state at the end of a time delay T which can be set on the front face at between 0.1 and 3 s. Once the voltage drops below 5 to 50% of the threshold (hysteresis), the output relay changes state again instantly. Changing the hysteresis on the front face does not therefore modify the value of the preset threshold. 24 V c 24 V a 120 V a 230 V a Unit power-up Controlled voltage T1 Operating range Maximum power consumption Frequency of measured signal Threshold Ue UPPER function Controlled voltage 3 Hysteresis Threshold Ue Hysteresis Display accuracy Delay on upward crossing of threshold T1 UNDER function Output relay Control of AC / DC voltage with memory When the value of the controlled voltage, AC or DC, reaches the threshold Ue displayed on the front face, the output relay changes state at the end of a time delay T which can be set on the front face at between 0.1 and 3 s, and remains latched in this position. 84 872 001 84 872 002 84 872 004 84 872 005 84 872 006 84 872 007 84 872 009 84 872 010 Technical specification Un Threshold Ue Hysteresis EUH 15 to 600 V 1 Types Supply voltage Un VOLTAGE CONTROL WITHOUT MEMORY EUL 0.2 to 60 V EUL EUH 24 V, 120 V, 230 V 50 / 60 Hz (galvanic isolation via transformer). 24 V c (No galvanic isolation) (1) 0.85 to 1.15 Un 3 VA 40 to 500 Hz Adjustment from 1 to 100% of the measurement range Adjustment from 5 to 50% of the displayed threshold ±10% of the full scale 0.1 to 3 s 1 AgCdO changeover, 8 Aa max -20 °C to +60 °C -30 °C to +70 °C E1-M E2-M E3-M E1-M E2-M 0.2 to 1 to 6 to 15 to 30 to 2 V 10 V 60 V 150 V 300V 2 kΩ 10 kΩ 60kΩ 100 kΩ 300 kΩ Operating temperature Storage temperature Measurement Input range Sensitivity Input resistance (1) The “negative” poles of the auxiliary power supply and the measurement circuit are connected inside the unit. VOLTAGE CONTROL WITH MEMORY Un Unit power-up Threshold Ue Hysteresis T1 memory Controlled voltage UPPER function Controlled voltage Hysteresis Threshold Ue T1 memory UNDER function Other information To order, specify : For connections, see page 3/46 For conformity, common characteristics, see page 3/50 For dimensions, see page 3/52 Standard products 1 Standard products, non stocked 3/22 Part number Example : Voltage control relay EUL 84 872 002 E3-M 60 to 600 V 600 kΩ Wiring diagrams and applications DIRT2 / LIRT2 - DIRTD2 / LIRTD2 DIART2 / LIART2 - DIARTD2 / LIARTD2 N R S T ~ S1 AR A1 11 E1 D1 d1 MA R T1 XP3 12 14 Y1 M A2 (+) A1 11 Memory S2 E1 E2 E3 R ~ 12 14 Y2 Y1 M A2 U V W (-) DC (-) OV Memory S2 M 3~ To control DC currents, short-circuit terminals Y2 and M (11 and 8). 3 DIRT(D)2 A1 A2 11 12 14 E1 E2 E3 M Y1 Y2 LIRT(D)2 2 10 1 4 3 5 6 7 8 EUL / EUH 9 A1 LIART(D)2 1 4 3 E2 (+) E3 (+) 12 11 R R 14 U A2 (-) A1 - A2 : Power supply 12 14 A2 (-) A1 - A2 : Power supply 12 A1 - A2 : Power supply DSR2/LSR2 - DSRD2 / LSRD2 12 V c version 9 A1 11 A1 U M (-) A2 8 (+) (+) 11 5 U U E1 (+) R DSFRT2 / LSFRT2 20 - 80 V a c and 90 - 270 V a c version + + ~ + ~ A1 11 A1 11 Supply voltage to be monitored 10 EUSF U (-) 2 EUS U (+) DIART(D)2 A1 A2 11 12 14 E1 M Y1 11 Supply voltage to be monitored R 12 14 Y1 A1 11 R Supply voltage to be monitored 12 14 Y2 Y1 M A2 A2 R M A2 12 14 Y2 Memory S2 - ~ To control DC currents, short-circuit terminals Y2 and M (11 and 8). DSR(D)2 LSR(D)2 ~ Memory S2 To control DC currents, short-circuit terminals Y2 and M (11 and 8). A1 A2 11 12 14 M Y1 Y2 2 10 1 4 3 8 9 DSFRT2 11 LSFRT2 3/46 A1 A2 11 12 14 M Y2 2 10 1 4 3 8 11 14 Approvals and conformity Approvals : UL CSA Conforming to : VDE 0435 VDE 0609 VDE 0110 VBG 4 IEC 158-1 IEC 255-0-20 IEC 255-3 & 6 IEC 255-8 & 17 IEC 255-22-1 IEC 255-22-2 IEC 255-5 IEC 801-4 IEC 67.1.5 1 & 18 DIN 46277 IEC 529 DIN 40050 NFC 20010 Generic standard for electrical relays Screw terminal connection Creepage distance Protection against accidental contact with terminals Standard covering low voltage control equipment (contactors) - AC1 Generic standard for electrical relays Generic standard for measurement and protection relays Generic standard for measurement and protection relays & thermal protection of motors Protection against HF interference - 1 Mhz Protection against electrostatic discharges 8 Kv Protection against 1.2/50 µs impulse voltages and insulation resistance Protection against pulse-string interference Pluggable into 11-pin base Fitting to DIN rail Class of protection IP 40 unit and IP 20 terminals Class of protection IP 40 unit and IP 20 terminals Class of protection IP 40 unit and IP 20 terminals Common technical characteristics 3 Self-extinguishing housing Output circuit................................. 1 AgCdO changeover Rated power ................................. 2000 VA a 190 W c Max. breaking current ................... 8 A~ 10 A c Minimum breaking current ........... 100 mA a 100 mA c Max. breaking voltage................... 380 V a Nominal breaking voltage ............. 250 V a Electrical life.................................. 105 operations at 2000 VA resistive Mechanical life .............................. 5 • 106 operations Contact/coil isolation .................... 4 kV 3/50 Dimensions MCI EI - EUL / EUH - EUS / EUSF 4,2 43,7 5 72 4,5 99,3 89,7 78,5 57 3,5 22,5 5 100 82,2 F3I F3IT 4,2 11 45 5 80 35,4 77 44 23 79 2 35,4 38 ETM / ETM2 38 16,8 86 81 Ø 5,5 82 45 18 17,5 90 14 12 94 5 100 17,5 17,5 78 12 12 45 11 12 A2 8 14 99,3 89,7 78,5 57 Y1 Y2 50 39 8 12 22,5 TIDR - TDA-TDC 48 24 74,5 27 Accessory Ø 13 39 3 38 5 99 95 20 Transformer part number 26 852 304 3/52 12