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The OptiFuse CBW57-EL4-5A is a low-profile, thermal circuit breaker with a push-to-reset actuator. It offers a current rating range from 3A to 30A and is suitable for input voltages of 125/250 VAC and 32/50 VDC, operating at 50-60 Hz.
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 interrupt ratings vary depending on voltage and current, with a maximum of 1000A at 125/250 VAC for 3-30A.
This circuit breaker operates within an ambient temperature range of -10°C to +60°C and has a reset time within 60 seconds. It is designed for panel mounting and features a black body with tin-plated terminals. The device is ignition protected to SAE J1171 and UL1500 standards.
Agency approvals include UR, CCC, TUV, and VDE, covering various voltage and current ranges. The CBW57 series is intended for occasional overcurrent protection and should avoid contact with chemical solvents.
The CBW57-EL4-5A is rated for 125/250 VAC and 32/50 VDC.
-10°C to +60°C.
1000A at 125/250 VAC for 3-30A, 400A at 125/250 VAC for 3-20A, and 300A at 50 VDC for 3-30A.
Reset time is within 60 seconds.
Yes, it meets SAE J1171 and UL1500 ignition protection standards.
Greater than 1500 VAC.
Greater than 100 MΩ at 500 VDC.