TE Connectivity Distributor

Circuit Breakers


TE Connectivity's thermal and hydraulic magnetic circuit breakers


TE Connectivity's thermal circuit breakers are available with rocker, push-pull, toggle, and push-to-reset actuators. These circuit breakers combine on/off switching with circuit protection in a single unit. They also offer a low-cost alternative to magnetic circuit breakers.

Magnetic Circuit breakers offer ratings from 20 mA to 50 A. Magnetic models are 1-pole to 4-pole devices. All series meet UL 1077 requirements, and several types meet ignition protection according to UL 1500.

Circuit Breakers PTM
TE Connectivity's Circuit Breakers

Thermal circuit breakers Magnetic circuit breakers
  • Typically less expensive
  • Trip point varies with the ambient temperature
  • One- through four-pole models
  • Typically more expensive
  • Temperature stable over a wide range
  • One- and two-pole models only


                                           Thermal Circuit Breakers
Digi-Key P/N Manufacturer P/N Description
Rocker Actuator - W33 Series
PB260-ND W33-S1N1Q-20 CIR BRKR THRM 20A ROCKER 250VAC Datasheet
PB258-ND W33-S1N1Q-10 CIR BRKR THRM 10A ROCKER 250VAC
View more W33 Series
Push-Pull Actuator – W23 Series
PB402-ND W23-X1A1G-5 CIR BRKR THRM 5A PUSH-PULL Datasheet
PB411-ND W23-X1A1G-50 CIR BRKR THRM 50A PUSH-PULL
View more W23 Series
Toggle Actuator – W31 Series
PB420-ND W31-X2M1G-25 CIR BRKR THRM 25A TOGGLE 240VAC Datasheet
PB416-ND 4-1393247-4 CIR BRKR THRM 7.5A TOGGLE 240VAC
View more W31 Series
Compact, Push to Reset – W57 Series
PB534-ND W57-XB7A4A10-15 CIR BRKR THRM 15A PUSH-RESET Datasheet
PB658-ND W57-XB7A4A10-8 CIR BRKR THRM 8A PUSH-RESET
View more W57 Series
Push to reset Fuseholder-Type – W28 Series
PB189-ND W28-XQ1A-8 CIR BRKR THRM 8A PUSH-RESET Datasheet
PB184-ND W28-XQ1A-3 CIR BRKR THRM 3A PUSH-RESET
View more W28 Series


                                             Hydraulic Magnetic Circuit Breakers
Digi-Key P/N Manufacturer P/N Description
Heavy duty #10-32 stud connections - W9 Series
PB434-ND W91-X112-20 CIR BRKR MAG-HYDR 20A LEVER Datasheet
PB437-ND W92-X112-20 CIR BRKR MAG-HYDR 20A LEVER
View more W9 Series
Quick-connect or screw terminals. - W6 Series
PB427-ND W67-X2Q52-10 CIR BRKR MAG-HYDR 10A LEVER Datasheet
PB428-ND W67-X2Q12-15 CIR BRKR MAG-HYDR 15A LEVER
View more W6 Series