Plastic housing with plated steel cap Nickel plated brass handles Stem and mounting hardware are nickel plated brass Mounting stem 15/32"-32 thread, 15/32" long Fits panels up through 1/4" thick Silver contacts for dependable operation Keyway in stem located in DOWN position BP indicates packaged in bubble packs for display Rating: 25 amps @ 12VDC; (5 amps @ 24 VDC) Note: #55046 is a reversing polarity switch