CLB-153-27E3N-B-A, Carling Technologies, Thermal circuit breaker, 15 amps, 125-250VAC / 32VDC, 3/8 inch 27 UNS mounting hole, Plastic bushing type E, plastic mounting nut type 3, no indicator plate, black button with terminal type A. The CLB-Series is a compact, single pole, push-to-reset family of thermal circuit breakers designed to protect equipment. Utilizing simple, precision design with few moving parts, these breakers offer cost effective, extremely reliable circuit protection with high resistance against shock and vibration