Heavy Duty CB Module - 50A705 Contour Circuit Breaker HD allows switchable protection for heavy duty circuits like Windlasses or Davit winches utilizing Bussmann Heavy Duty thermal circuit breakers.Features:Modular sizing with contour lock moulding allows easy groupingLED to indicate circuit is onWARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.