Electric Square D Hammer. 2-Pole, 2-Wire, Fusible HNF361S NF351SS HUN361AS THN3361SS HU361DS DH361UWK. 60. HNF362S NF352SS HUN362AS THN3362SS HU362DSSquare D™ HU361DS Heavy Duty Non-Fusible Single Throw Safety Switch, 600 VAC/VDC, 30 A, 10 hp, 3 Poles. Safety Switches & Disconnects. 31569 MFG #: HU361DS. The Square D™ by Schneider Electric brand Heavy Duty Safety Switch is designed to be tough, reliable and provide exceptional performance in the. The Square D™ by Schneider Electric brand Heavy Duty Safety Switch is designed to be tough, reliable and provide exceptional performance in the most Product data sheet. HU361DS. Characteristics. SWITCH NONFUSIBLE HD 30A 3P STAINLESS. Product availability : Stock - Normally stocked in distribution HU361DS Safety Switches from Square D. Check Galco's stock for HU361DS Safety Switches from Square D. Huge Inventory - Same Day Shipping - Expert Technical