The BK/ATC-40 is a 40A 32V ATC®-series fast acting Blade Fuse with nylon housing, tin-plated zinc terminals for corrosion resistance and enhanced conductivity, has an Industry standard color coding for quick identification of ampere rating, this is a halogen-free, features an enclosed element that helps protect against shocks and sparks, plus corrosion resistance for longer service life. Test points on specific part/package numbers may speed up circuit troubleshooting. Meets the needs of extreme environments. UL recognized for use in low voltage control circuits.