INLINE FUSE HOLDER/twist lock, 30 Amp, 32 Volts DC, Standard Duty - 8 looped UL 1015 wire lea ds for cut and install in-line installation, Heavy Duty - Two 4 GXL wire leads for easy in-line installation. Accepts SFE, AGA, AGC, AGW, and AGX Series GlassFuses, Spring-loaded twist-lock body for easy fuse installation and replacement, Weather resistant nylon body.