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The OptiFuse CBW57-EJ-25A is a thermal circuit breaker designed for reliable overcurrent protection. It operates within an amperage range of 3A to 30A and is rated for 125/250 VAC and 32/50 VDC.
Key electrical specifications include a dielectric strength greater than 1500 VAC, an insulation resistance exceeding 100MΩ (at 500 VDC), and a contact endurance of 500 cycles at 125 VAC with 150% of rated current. The reset time is within 60 seconds. The breaker is ignition protected to SAE J1171 and UL1500 standards.
This circuit breaker features a push-to-reset actuator and a panel mount design for easy integration into systems. The body is black with tin-plated terminals. It operates in ambient temperatures from -10°C to +60°C. Agency standards and listings include UR, CCC, TUV, and VDE.
Warnings indicate that operation beyond specified maximum ratings or improper use may result in damage. These devices are intended for occasional overcurrent protection, not for repeated overcurrent conditions.
The CBW57-EJ-25A is rated for 25A continuous current.
It supports 250VAC at 50-60 Hz and 32VDC.
The operating ambient temperature range is -10°C to +60°C.
Yes, it is ignition protected to SAE J1171 and UL1500 standards.
The interrupt rating is 1000A at 125/250 VAC and 300A at 50 VDC.
It is designed for panel mounting.
The reset time is within 60 seconds.