GE Spec-Setter™ Safety Switch, Fusible Heavy Duty, Series: TH Series, 600 VAC, 30 A, 7-1/2 hp Standard Fuse/20 hp Time Delay, 3, 50/60 Hz, 3 Pole, 3 Wires, 200 kA Short Circuit, Handle Actuator, NEMA 1, Surface Mount, 60/75 deg C, 12.6 in H x 8.3 in W x 4 in D. Designed for commercial and industrial applications where safety, high performance and continuity of service are essential. listed to UL standard 98 enclosed and dead front switches. suitable for use as service equipment when installed in accordance with the national electrical code certified to CSA standard 22.2 no 4-04 enclosed and dead front switches. meets or exceeds NEMA KS1 standard for enclosed switches, type HD. fusible and non-fusible switches available (consult BuyLog for interrupt ratings). quick-make, quick-break mechanism. 60/75 deg C conductor rating. full cover interlocks.