MDI Mercury Displacement 35NO-120AT Contactor 319847-401 Constructed from heavy-duty materials to

Constructed from heavy-duty materials to resist thermal warping in the burner box

this automatic changeover control facilitates the critical transition between heating and cooling circuits in combination hot and chilled water systems

The stainless steel power element and laser-welded diaphragm offer superior resistance to corrosion and high-pressure stress

Extended 3-Inch Shank: Specifically designed to penetrate thick tank insulation for easy tool access and drainage

This ASCO 8214 series valve ensures safe operation within a 0-5 PSI pressure range

MDI Mercury Displacement 35NO-120AT Contactor 319847-401 Constructed from heavy-duty materials toProfessional grade MDI Mercury Displacement 35NO 120AT Contactor is designed for high cycle industrial applications where mechanical relays fail. This single pole normally open contactor features a 120V AC coil and is rated for 35 Amp resistive loads, making it the standard for electric heat control and industrial processing equipment. Unlike standard electromagnetic contactors, the MDI 35NO 120AT utilizes a hermetically sealed liquid mercury contact