Dwyer Instruments H3A-3SL Dwyer Instruments Pressure Switches, H3 Series Duotect Differential Pressure MFG Item Number H3A-3SL Series H3 More specs More specs Contact Type SPDT Protection Rating IP56, NEMA 4X Current Rating 5 A @ 125 VAC, 5 A @ 250 VAC Connection Process: 1/8 NPT Female Electrical Connection 18 " Wire Leads Material Aluminum Gauge Proof Pressure 500 psig Comments 5-70 psid Net Weight 4.74 lbs Gross Weight 4.94 lbs Qty – + Add to Cart <