W52 Rocker-Actuated Circuit Breakers

TE Connectivity's (TE) / Potter & Brumfield W52 Rocker-Actuated Thermal Circuit Breakers/Power Switches provide trip-free cycling, 0.5A to 20A voltage ratings, and a snap-in panel-mount design that simplifies installation. These compact devices snap into the same cutout as many common power switches and are available with an optional indicator lamp. The W52 series offers ratings of 0.5A to 20A, a quick 60s reset time, and a 1000A interrupt capacity per the UL 1077 standard. The robust construction combines circuit protection and power switching in a single unit with an endurance of 6000 switch cycling operations at 100% of rating. The rocker-actuated design features 0.250" (6.35mm) quick-connects, solder terminals, or right-angle PC terminals, and an operating temperature range of 0°C to +50°C or +60°C. These W52 circuit breakers from TE / Potter & Brumfield can be used in a wide variety of applications.

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Qty. RoHS ECAD Model Series
Product
Type
Current Rating
Voltage Rating AC
Number of Poles
Actuator Type
Minimum Operating Temperature
Maximum Operating Temperature
Illuminated
TE Connectivity / P&B Circuit Breakers W52-A162A1-8=CKTBKR,THERM,ROCK,QC.250RED OPAQUE 250VAC
Datasheet
499In Stock
1,000Expected 14/12/2026
Min.: 1
Mult.: 1

W52 Circuit Breakers Thermal 8 A 250 VAC 1 Pole Rocker 0 C + 50 C Non-Illuminated
TE Connectivity / P&B Circuit Breakers W52-A151A1-10=CKTBKR,THERM,ROCBLACK OPAQUE 125VAC
Datasheet
1,000In Stock
Min.: 1
Mult.: 1

W52 Circuit Breakers Thermal 10 A 125 VAC 1 Pole Rocker 0 C + 60 C Non-Illuminated
TE Connectivity / P&B Circuit Breakers W52-A122B1-8=CKTBKR,THERM,ROCKRED 250VAC
Datasheet
1,000In Stock
Min.: 1
Mult.: 1

W52 Circuit Breakers Thermal 8 A 250 VAC 1 Pole Rocker 0 C + 50 C Illuminated
TE Connectivity / P&B Circuit Breakers W52-A151A1-7=CKTBKR,THERM,ROCKBLACK OPAQUE 125VAC
Datasheet
997In Stock
Min.: 1
Mult.: 1

W52 Circuit Breakers Thermal 7 A 125 VAC 1 Pole Rocker 0 C + 50 C Non-Illuminated
TE Connectivity / P&B Circuit Breakers W52-C161A1-15=CKTBKR,THERM,ROCRED OPAQUE 125VAC
Datasheet
999In Stock
Min.: 1
Mult.: 1

W52 Circuit Breakers Thermal 15 A 125 VAC 1 Pole Rocker 0 C + 60 C Non-Illuminated
TE Connectivity / P&B Circuit Breakers W52-A151A1-5=CKTBKR,THERM,ROCKBLACK OPAQUE 125VAC
Datasheet
996In Stock
Min.: 1
Mult.: 1

W52 Circuit Breakers Thermal 5 A 125 VAC 1 Pole Rocker 0 C + 50 C Non-Illuminated
TE Connectivity / P&B Circuit Breakers W52-A161A1-15=CKTBKR,THERM,ROC-RED OPAQUE 125VAC
Datasheet
998In Stock
Min.: 1
Mult.: 1

W52 Circuit Breakers Thermal 15 A 125 VAC 1 Pole Rocker 0 C + 60 C Non-Illuminated
TE Connectivity / P&B Circuit Breakers W52-A121B1-10=CKTBKR,THERM,ROCRED 125VAC
Datasheet
994In Stock
Min.: 1
Mult.: 1

W52 Circuit Breakers Thermal 10 A 125 VAC 1 Pole Rocker 0 C + 60 C Illuminated
TE Connectivity / P&B Circuit Breakers W52-A122B1-5=CKTBKR,THERM,ROCKRED 250VAC
Datasheet
999In Stock
Min.: 1
Mult.: 1

W52 Circuit Breakers Thermal 5 A 250 VAC 1 Pole Rocker 0 C + 50 C Illuminated
TE Connectivity / P&B Circuit Breakers W52-A122B1-15=CKTBKR,THERM,ROCRED 250VAC
Datasheet
1,000In Stock
Min.: 1
Mult.: 1

W52 Circuit Breakers Thermal 15 A 250 VAC 1 Pole Rocker 0 C + 60 C Illuminated
TE Connectivity / P&B Circuit Breakers W52-A121B1-5=CKTBKR,THERM,ROCKRED 125VAC
Datasheet
1,000In Stock
Min.: 1
Mult.: 1

W52 Circuit Breakers Thermal 5 A 125 VAC 1 Pole Rocker 0 C + 50 C Illuminated
TE Connectivity / P&B Circuit Breakers W52-A121B1-15=CKTBKR,THERM,ROCRED 125VAC
Datasheet
998In Stock
Min.: 1
Mult.: 1

W52 Circuit Breakers Thermal 15 A 125 VAC 1 Pole Rocker 0 C + 60 C Illuminated
TE Connectivity / P&B Circuit Breakers W52-A121B1-20=CKTBKR,THERM,ROCRED 125VAC
Datasheet
996In Stock
Min.: 1
Mult.: 1

W52 Circuit Breakers Thermal 20 A 125 VAC 1 Pole Rocker 0 C + 60 C Illuminated
TE Connectivity / P&B Circuit Breakers W52-A152A1-15=CKTBKR,THERM,ROCBLACK OPAQUE 250VAC
Datasheet
1,000In Stock
Min.: 1
Mult.: 1

W52 Circuit Breakers Thermal 15 A 250 VAC 1 Pole Rocker 0 C + 60 C Non-Illuminated
TE Connectivity / P&B Circuit Breakers W52-A152A1-10=CKTBKR,THERM,ROCBLACK OPAQUE 250VAC
Datasheet
1,000In Stock
Min.: 1
Mult.: 1

W52 Circuit Breakers Thermal 10 A 250 VAC 1 Pole Rocker 0 C + 60 C Non-Illuminated
TE Connectivity / P&B Circuit Breakers W52-A152A1-5=CKTBKR,THERM,ROCBLACK OPAQUE 250VAC
Datasheet
1,000In Stock
Min.: 1
Mult.: 1

W52 Circuit Breakers Thermal 5 A 250 VAC 1 Pole Rocker 0 C + 50 C Non-Illuminated
TE Connectivity / P&B Circuit Breakers W52-A152A1-20=CKTBKR,THERM,ROCBLACK OPAQUE 250VAC
Datasheet
1,000In Stock
Min.: 1
Mult.: 1

W52 Circuit Breakers Thermal 20 A 250 VAC 1 Pole Rocker 0 C + 60 C Non-Illuminated
TE Connectivity / P&B Circuit Breakers W52-A122B1-10=CKTBKR,THERM,ROCRED 250VAC
Datasheet
1,000Expected 16/11/2026
Min.: 1
Mult.: 1

W52 Circuit Breakers Thermal 10 A 250 VAC 1 Pole Rocker 0 C + 60 C Illuminated
TE Connectivity / P&B Circuit Breakers W52-A122B1-20=CKTBKR,THERM,ROCRED 250VAC
Datasheet
1,000Expected 16/11/2026
Min.: 1
Mult.: 1

W52 Circuit Breakers Thermal 20 A 250 VAC 1 Pole Rocker 0 C + 60 C Illuminated
TE Connectivity / P&B Circuit Breakers W52-A152A0-10=CKTBKR,THERM,ROCK,QC.250,PBLACK OPAQUE 250VAC
Datasheet
Non-Stocked Lead-Time 24 Weeks
Min.: 1,000
Mult.: 1,000

W52 Circuit Breakers Thermal 10 A 250 VAC 1 Pole Rocker 0 C + 60 C Non-Illuminated
TE Connectivity / P&B Circuit Breakers W52-A122B1-7=CKTBKR,THERM,ROCKRED 250VAC
Datasheet
Non-Stocked Lead-Time 24 Weeks
Min.: 1,000
Mult.: 1,000

W52 Circuit Breakers Thermal 7 A 250 VAC 1 Pole Rocker 0 C + 50 C Illuminated
TE Connectivity / P&B Circuit Breakers W52-A151A1-20=CKTBKR,THERM,ROCBLACK OPAQUE 125VAC
Datasheet
Non-Stocked Lead-Time 24 Weeks
Min.: 1,000
Mult.: 1,000

W52 Circuit Breakers Thermal 20 A 125 VAC 1 Pole Rocker 0 C + 60 C Non-Illuminated
TE Connectivity / P&B Circuit Breakers W52-A181A1-20=CKTBKR,THERM,ROCBLACK/RED 125VAC
Datasheet
Non-Stocked Lead-Time 18 Weeks
Min.: 1,000
Mult.: 1,000

W52 Circuit Breakers Thermal 20 A 125 VAC 1 Pole Rocker 0 C + 60 C Non-Illuminated
TE Connectivity / P&B Circuit Breakers W52-A122B0-5=CKTBKR,THERM,ROCRED 250VAC
Datasheet
Non-Stocked Lead-Time 24 Weeks
Min.: 1,000
Mult.: 1,000

W52 Circuit Breakers Thermal 5 A 250 VAC 1 Pole Rocker 0 C + 50 C Illuminated
TE Connectivity / P&B Circuit Breakers W52-A121B1-6=CKTBKR,THERM,ROCKRED 125VAC
Datasheet
Non-Stocked Lead-Time 24 Weeks
Min.: 1,000
Mult.: 1,000

W52 Circuit Breakers Thermal 6 A 125 VAC 1 Pole Rocker 0 C + 50 C Illuminated