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This OptiFuse CBW68-HF-50A-5HD is a thermal circuit breaker designed for overcurrent protection. It offers a 50A current rating and can handle up to 250VAC or 50VDC.
The breaker features a push-to-reset actuator and a panel mount design for easy integration into systems. Key electrical specifications include a dielectric strength of 1500 VAC for 1 minute and an insulation resistance greater than 500M Ω. The interrupt capacity is rated at 1000A for 125 VAC and 200A for 250 VAC.
Calibration is specified at 25°C, with the device holding at 100% of rated current and tripping within 1 hour at 150% of rated current. At higher overcurrents, trip times are faster: 8.5-45.0 seconds at 200% and 3.2-8.2 seconds at 300% of rated current. Contact endurance is rated for over 500 cycles at 125 VAC and 150% of rated current. The reset time is less than 60 seconds.
Warnings indicate that operation beyond specified maximum ratings or improper use may result in damage, electrical arcing, or flame. These devices are intended for occasional overcurrent protection, not for repeated overcurrent conditions or prolonged trips. Avoid contact with chemical solvents, as they may damage device performance.
The current rating is 50A.
The voltage rating is 250 VAC / 50 VDC.
It is a thermal circuit breaker.
It is designed for panel mounting.
It features a push-to-reset actuator.
The interrupt capacity is 1000A at 125 VAC.
The insulation resistance is greater than 500M Ω.