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The OptiFuse CBW57-HS-18A is a thermal circuit breaker designed for reliable overcurrent protection. It offers an amperage range of 3A to 30A, with this specific unit rated at 18A. The breaker supports input voltages of 125/250 VAC and 32/50 VDC, operating at a frequency of 50-60 Hz.
Key electrical specifications include a dielectric strength greater than 1500 VAC, an insulation resistance exceeding 100MΩ (at 500 VDC), and various interrupt ratings depending on voltage and current. The time-current characteristics at 25°C indicate no trip at 100% rated current, trip within 1 hour at 150%, 5-30 second trip at 200%, and 1.5-5 second trip at 300% rated current.
This circuit breaker features a push-to-reset actuator and a panel mount type. The operating ambient temperature range is -10°C to +60°C. The body is black with tin-plated terminals. Agency standards and listings include UR, CCC, TUV, and VDE, indicating broad compliance for various applications.
Designed for occasional overcurrent protection, the CBW57-HS-18A is suitable for applications requiring robust thermal protection. Its low-profile design and panel mounting make it convenient for integration into various electrical systems.
125/250 VAC and 32/50 VDC.
-10 to +60 °C.
1000A at 125/250 VAC for 3-30A range; 400A at 125/250 VAC for 3-20A; 300A at 50 VDC.
Yes, to SAE J1171 and UL1500.
Within 60 seconds.
No trip at 100% rated current; trip within 1 hour at 150%; 5-30 seconds at 200%; 1.5-5 seconds at 300%.
6 KGfcm for plastic nut on plastic thread, 10 KGfcm for metal nut on metal thread, 6 KGfcm for metal nut on plastic thread.