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The OptiFuse CBW57-EL4-3A is a low-profile thermal circuit breaker designed for overcurrent protection. It offers a 3A current rating and supports input voltages of up to 250 VAC and 32 VDC, with a frequency range of 50-60 Hz.
Key electrical specifications include a dielectric strength greater than 1500 VAC, an interrupt rating of 1000A at 125/250 VAC, and insulation resistance exceeding 100MΩ at 500 VDC. The device is ignition protected to SAE J1171 and UL1500 standards, making it suitable for marine applications.
This circuit breaker features a push-to-reset actuator and a panel mount design for easy installation. The operating ambient temperature range is -10℃ to +60℃. It is agency listed by UR, CCC, TUV, and VDE.
Warnings indicate that operation beyond specified maximum ratings may cause damage. The device is intended for occasional overcurrent protection, not for repeated overcurrent conditions.
The current rating is 3A.
It supports 250 VAC and 32 VDC.
It is a thermal circuit breaker.
It features a push-to-reset actuator.
The operating ambient temperature is -10℃ to +60℃.
Yes, it is ignition protected to SAE J1171 and UL1500 standards.