Din Rail Breaker DC - 150 MidNite’s breakers are rated to break the full rated load at the rated voltage repeatedly, with NO DAMAGE. Always use a properly sized breaker for disconnecting. SPECIFY AMP SIZE when ordering. Available sizes: 5, 10, 15, 20, 30, 40, 50 and 63 amp 150VDC din rail mount breaker.All MidNite circuit breakers hold 100% rated current independent of ambient temperature. Listed by ETL for US & Canada