September 29, 2011 Circuit Breakers Dave Thomas, Product Manager.

September 29, 2011

Circuit Breakers

Dave Thomas, Product Manager

April 19, 2023page 2 /

Some Types of Circuit Protection Products

• Product Types

– Fuses

– Thermal over-current breakers

– Magnetic hydraulic breakers (A/B/C/D/E frame)

– Temperature compensated breakers/high performance thermal circuit breakers

– Molded case thermal magnetic breakers (F frame)

• Does TE RP Manufacture?

– No

– Yes

– Yes, A/B/C frame

– No

– No


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


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.


Thermal vs. Magnetic Breakers

Thermal

• Temperature Sensitive

• Not Voltage Sensitive (same unit can be used for AC or DC)

• Single and Double Pole

• Fixed Trip Time Delay

• Push-to-Reset or Switch Function

• Limited Circuit Functions

• Small Package Size

• Lower Cost

Magnetic

• Not Temperature Sensitive over Operating Range

• Voltage Sensitive (different units are typically used for AC vs. DC)

• Single or Multi-pole

• Various Trip Time Delays

• Switch Function

• Variety of Circuit Functions

• Larger Package Size

• Higher Cost

What are the differences?


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.


How Magnetic Breakers Work

Coil

Armature/Trip Lever

Contacts

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.


Thermal & Magnetic Circuit Breakers

• 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

Product Applications


Circuit Breaker Product Line

W28

Product Overview

W58 W54 W57 W51 W33

W31 W23 W6 W9

April 19, 2023page 10 /

W28 – Thermal Breaker

• 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)

Product Description

April 19, 2023page 11 /


• 0.5 – 30 amps

• 1 pole

• Push-to-reset

• Quick connect or screw terminals


• 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)

Product Description

April 19, 2023page 12 /


• 5 – 30 amps (up to 40 w/o UL)

• 1 pole

• Push-to-reset

• Multiple termination, mounting and marking options


• UL (USA & Canada), VDE, CCC

• Ignition protected (UL 1500 types)


Product Description

April 19, 2023page 13 /


• 4 – 20 amps

• 1 pole

• Push-to-reset

• 1/3 smaller than W54


• 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)

Product Description

April 19, 2023page 14 /


• 5 – 20 amps

• 1 pole

• Rocker actuator

• Switching option

• Quick connect or PC terminals


• Optional indicator lamp


• UL (USA and Canada), VDE, CCC


Product Description

April 19, 2023page 15 /


• 5 – 20 amps

• 1 or 2 pole

• On/off switching with optionally illuminated rocker

• Quick connect or solder terminals

• Optional auxiliary switch



• UL, CSA


Product Description

April 19, 2023page 16 /

W23/W31 – Thermal Breaker

• 0.5 – 50 amps

• 1 pole

• On/off switching – W23 - push/pull – W31 - toggle

• Screw terminals


• Threaded bushing mounting

• UL, CSA

• Approximate size:.69” x 1.38” x 1.6” deep (17.5 x 34.9 x 40.6 deep)

Product Description

W31

W23

April 19, 2023page 17 /

W6 – Magnetic Breaker

• 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)

Product Description

April 19, 2023page 18 /

W9 – Magnetic Breaker

• 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)

Product Description

April 19, 2023page 19 /

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)

April 19, 2023page 20 /

Circuit Breakers

• 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.

TE Advantages

April 19, 2023page 21 /

• 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.

Sales Tools

Circuit Breakers

http://www.te.com/products/circuitbreakers/datasheet.asp

http://www.te.com/

April 19, 2023page 22 /

• RSS team members

• Dave Thomas, Product [email protected]

• Wayne Weiss, Product Engineer [email protected]

Key Contacts

Circuit Breakers

April 19, 2023page 23 /

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

April 19, 2023page 24 /Information is TE Confidential & ProprietaryDo Not Reproduce or Distribute

September 29, 2011 Circuit Breakers Dave Thomas, Product Manager.

Documents

Transcript of September 29, 2011 Circuit Breakers Dave Thomas, Product Manager.