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Transcript
Circuit Breakers Dave Thomas, Product Manager September 29, 2011 Some Types of Circuit Protection Products • Product Types • Does TE RP Manufacture? – Fuses – No – Thermal over-current breakers – Yes – Magnetic hydraulic breakers (A/B/C/D/E frame) – Yes, A/B/C frame – Temperature compensated breakers/high performance thermal circuit breakers – No – Molded case thermal magnetic breakers (F frame) – No page 2 / April 30, 2017 Why use a breaker instead of a fuse? • Breakers add value to a design, providing convenience and protection. – A circuit breaker can be quickly and easily reset after it trips and the circuit fault is corrected. If a fuse blows, a replacement fuse may not be readily available. – A breaker helps to maintain the proper protection value in the circuit. After a fuse blows, the incorrect value fuse could be inserted. – Some breakers can perform multiple functions • Circuit protection • Switching • Indication page 3 / April 30, 2017 Secondary vs. Primary Circuit Breakers (TE Relay Products makes secondary) • Primary circuit breakers can stand alone and are rated to withstand higher currents and short circuit values. • Secondary circuit breakers must be backed-up by a branch circuit breaker or approved fuse. They cannot be used without other protection in series with the secondary breaker. Secondary circuit breakers are sometimes referred to as supplementary protectors or component protectors. page 4 / April 30, 2017 Thermal vs. Magnetic Breakers What are the differences? Thermal Magnetic • Temperature Sensitive • Not Temperature Sensitive over Operating Range • Not Voltage Sensitive (same unit can be used for AC or DC) • Voltage Sensitive (different units are typically used for AC vs. DC) • Single and Double Pole • Single or Multi-pole • Fixed Trip Time Delay • Various Trip Time Delays • Push-to-Reset or Switch Function • Switch Function • Limited Circuit Functions • Variety of Circuit Functions • Small Package Size • Larger Package Size • Lower Cost • Higher Cost page 5 / April 30, 2017 How Thermal Breakers Work Bimetal Overcurrent through the specially formed bimetal causes it to heat up and snap into a position that opens the contacts (one of the contacts is attached to the bimetal). When the contacts open, an insulator slides into position between the contacts to hold them open until the breaker is manually reset. page 6 / April 30, 2017 How Magnetic Breakers Work Contacts Armature/Trip Lever Coil Overcurrent through the coil generates magnetic flux which attracts the armature and trips the breaker, opening the contacts. Manufacturer can extend time delay before tripping by using higher viscosity fluid in the breaker’s cylinder, slowing the piston. page 7 / April 30, 2017 Thermal & Magnetic Circuit Breakers Product Applications • • • • • • • • • • • • • • • • Treadmills HVAC (transformer) Appliance (ovens/coffee makers) Commercial ovens Cable converters Spa and pool controls and heaters UPS RV (HVAC) Battery chargers Surge protection RV furnaces/electrical panels Oil drilling Premium audio Floor buffers/cleaners Wastewater treatment/pumps Construction/boom lifts; winch • • • • • • • • • • • • • • • • Fluorescent lighting Test and measurement Marine equipment Food storage process tanks Copy machines Vending machines General aviation aircraft Medical applications Power distribution/inverters/routers Generators Welders Handicapped carts Garage door openers Fire doors Drying equipment Power supplies/UPS systems page 8 / April 30, 2017 Circuit Breaker Product Line Product Overview W28 W31 W58 W54 W23 W57 W6 W51 W33 W9 page 9 / April 30, 2017 W28 – Thermal Breaker Product Description • 0.25 – 20 amps • 1 pole • Push-to-reset • Quick connect terminals • Up to 32VDC/250VAC • 1000 amp interrupt • Snap-in mounting • UL, CSA, VDE • Approximate size: .54” x .63” x 1.54” deep (13.7 x 15.9 x 39.0 deep) page 10 / April 30, 2017 W58 – Thermal Breaker Product Description • 0.5 – 30 amps • 1 pole • Push-to-reset • Quick connect or screw terminals • Up to 50VDC/250VAC • Threaded bushing mounting • UL, CSA • Meets ignition protection requirements per UL 1500 • Approximate size: .66” x 1.38” x 1.38” deep (16.8 x 34.9 x 34.9 deep) page 11 / April 30, 2017 W54 – Thermal Breaker Product Description • 5 – 30 amps (up to 40 w/o UL) • 1 pole • Push-to-reset • Multiple termination, mounting and marking options • 1000 amp interrupt • UL (USA & Canada), VDE, CCC • Ignition protected (UL 1500 types) • Approximate size: .58” x 1.38” x 1.22” deep (14.6 x 35.0 x 31.0 deep) page 12 / April 30, 2017 W57 – Thermal Breaker Product Description • 4 – 20 amps • 1 pole • Push-to-reset • 1/3 smaller than W54 • 1000 amp interrupt • Multiple termination, mounting and marking options • UL (USA & Canada), VDE, CCC • Ignition protected (UL 1500) types • Approximate size: .58” x 1.15” x .89” deep (14.6 x 29.2 x 22.6 deep) page 13 / April 30, 2017 W51 – Thermal Breaker Product Description • 5 – 20 amps • 1 pole • Rocker actuator • Switching option • Quick connect or PC terminals • 1000 amp interrupt • Optional indicator lamp • Snap-in mounting • UL (USA and Canada), VDE, CCC • Approximate size: .6” x 1.3” x 1.2” deep (15.2 x 33.3 x 31.3 deep) page 14 / April 30, 2017 W33 – Thermal Breaker Product Description • 5 – 20 amps • 1 or 2 pole • On/off switching with optionally illuminated rocker • Quick connect or solder terminals • Optional auxiliary switch • Up to 50VDC/250VAC • Snap-in mounting • UL, CSA • Approximate size: .98” x 1.89” x 1.72” deep (24.9 x 48.0 x 43.8 deep) page 15 / April 30, 2017 W23/W31 – Thermal Breaker Product Description • 0.5 – 50 amps • 1 pole • On/off switching – W23 - push/pull – W31 - toggle • Screw terminals W31 • Up to 50VDC/240VAC • Threaded bushing mounting • UL, CSA • Approximate size: .69” x 1.38” x 1.6” deep (17.5 x 34.9 x 40.6 deep) W23 page 16 / April 30, 2017 W6 – Magnetic Breaker Product Description • 0.25 – 50 amps • 1 to 4 poles • Toggle or rocker • Quick connect or screw terminals • Up to 65VDC/277VAC/480VAC • • • • • 3 phase-Wye Screw mounting Optional auxiliary switch, relay trip pole, toggle guards UL, CSA, VDE Ignition protected (UL 1500) types Approximate size per pole: .75” x 2.0” x 1.64” deep (19.1 x 50.8 x 42.1 deep) page 17 / April 30, 2017 W9 – Magnetic Breaker Product Description • 0.25 – 50 amps • 1 to 4 poles • Toggle or rocker • Stud terminals • Up to 65VDC/277VAC/480VAC 3 phase-Wye • Screw mounting • Optional auxiliary switch • UL, CSA, VDE • Ignition protected (UL 1500) types • Approximate size per pole: .75” x 2.5” x 2.1” deep (19.1 x 63.5 x 53.0 deep) page 18 / April 30, 2017 Circuit Breaker Competitors • Sensata/Airpax – Primarily W6/W9, but also has some thermals • Carling Technologies – W6/W9, W54/W57/W58, W28 • Heinemann – W6/W9 and W28 • E-T-A – W6/W9, W33, W31, W54/W57/W58 • Mechanical Products – W51, W54/W57/W58, W23/W31, W28 • Schurter – W54/W57/W58, W23/W31, W28, W51, W33 • Circuit Breaker Industries – W6/W9 • Many China manufacturers (Joemex, Sang Mao, Hwawon Electric) page 19 / April 30, 2017 Circuit Breakers TE Advantages • Why should someone purchase TE circuit breakers? – We offer a range of thermal and magnetic breakers and can help customers select the type that is best for their particular application. Of course, the customer must ultimately determine what works best for the application. – Our circuit breakers have been satisfying OEM needs for 40+ years. – Broadly available through an extensive network of authorized distributors and resellers. – We can also help you with your requirements for relays, transformers, terminals, connectors and other electronic components. page 20 / April 30, 2017 Circuit Breakers Sales Tools • What sales tools are available? – Data sheets for our circuit breaker product line can be found online at www.te.com/products/circuitbreakers/datasheet.asp – Data for many of our circuit breakers may be found in our ecatalog at www.te.com – An overview of circuit breakers is provided in the Relay Products Shortform Catalog (1308033-1) – Samples of many TE circuit breakers are maintained in our sample room and can be ordered through ecommerce. page 21 / April 30, 2017 Circuit Breakers Key Contacts • RSS team members • Dave Thomas, Product Manager 336-727-5408 [email protected] • Wayne Weiss, Product Engineer 336-727-5532 [email protected] page 22 / April 30, 2017 Other Information General While TE Connectivity and its affiliates have made every reasonable effort to confirm the accuracy of the information contained in this presentation, its datasheets and its catalogs, TE Connectivity cannot assure that this information is error free. For this reason TE Connectivity does not make any representation or offer any guarantee that such information is accurate, correct, reliable or current or does not infringe any intellectual property rights. TE Connectivity reserves the right to make any adjustments to the information at any time. TE Connectivity expressly disclaims any implied warranty regarding the information contained in this presentation, its datasheets and its catalogs, including, but not limited to, the implied warranties of merchantability or fitness for a particular purpose. TE Connectivity’s only obligations and liability with respect to its products are governed solely by the TE Connectivity’s Standard Terms and Conditions of Sale for these products or the respective written agreement under which the products are supplied. TE CONNECTIVITY WILL IN NO CASE BE LIABLE IN ANY CIRCUMSTANCES FOR ANY INCIDENTAL, INDIRECT, CONSEQUENTIAL DAMAGES OR LOSS OF PROFITS ARISING FROM OR IN CONNECTION WITH THE INFORMATION CONTAINED IN THIS PRESENTATION, ITS DATASHEETS AND ITS CATALOGS OR IN CONNECTION WITH ITS PRODUCTS, INCLUDING, BUT NOT LIMITED TO, THE SALE, RESALE, USE OR MISUSE OF ITS PRODUCTS. USERS SHOULD RELY ON THEIR OWN JUDGMENT TO EVALUATE THE SUITABILITY OF A PRODUCT FOR A CERTAIN PURPOSE AND TEST EACH PRODUCT FOR ITS INTENDED APPLICATION. Trademark TE Connectivity, TE connectivity (logo), TE (logo), TE Tyco Electronics (logo), P&B and Potter & Brumfield are trademarks of the TE Connectivity group of companies and its licensors. Other logos, product or company names mentioned herein may be trademarks of their respective owners. © 2011 Tyco Electronics Corp., a TE Connectivity Ltd. company page 23 / April 30, 2017 Information is TE Confidential & Proprietary Do Not Reproduce or Distribute page 24 / April 30, 2017