HEAVY DUTY SAFETY SWITCH: The VisiPact Safety Switch is a reliable, durable, and high-performance switch designed for the most grueling conditions; It has a durability three times greater than NEMA standard to meet your commercial and industrial needs SWITCH FEATURES: Viewing window allows visual confirmation with door closed; QR code provides quick access to product info; Dual cover interlock blocks opening cover if switch is on & switching on if cover is open; Handle indicates ON (red) or OFF (black) RATINGS: With a rating of 30A with a voltage 600 VAC and 600 VDC, and a short circuit rating of 10kA or 200kA depending on fuses used, this three-blade fusible heavy duty safety switch is ideal for a wide range of commercial and industrial applications FUSES & WIRING: Accepts H, K, R fuse types as shipped & can be field modified for J fuses; The safety switch has a 3-wire configuration of 3 poles but a solid neutral can be field-installed; Wire range is AWG 12-AWG 6 aluminium and AWG 14-AWG 6 copper STANDARDS: All heavy duty safety switches are tested per UL98 and NEMA KS1 standards and listed in the UL files E2875 and E154828; This switch is Type 3R rated with a galvannealed steel enclosure