The W51-A121B1-10 is a 1-pole rocker actuated switchable Thermal Circuit Breaker with 0.250-inch (6.35mm) quick-connect straight terminals. The 1423673-5 calibration breaker will continuously carry 100% of rated load. It may trip between 101 and 135%, but must trip at 135% within one hour at +25°C.
Angular button design
Red (translucent) rocker
Reset/off printed marking
Compact and trip-free design
Provides circuit protection and power switching in a single unit
Snaps into the same cutout as many common power switches
Ten times rated current resettable overload capacity
Typically 6000 operations at 100% of rating switch endurance cycling
1500VAC (60s) Dielectric strength
100MΩ Insulation resistance
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