Resideo L4006G1006 Controller 322838-754 The 3H0346700004 is the current

The 3H0346700004 is the current manufacturing standard and serves as the direct replacement for the 28046

this switch is rated for liquid temperatures up to 250°F (121°C)

High Contact Rating: Rated for 10A at 250V AC

Durable Construction: Built with high-grade materials to withstand the high operating pressures and temperature cycles of R-22 cycles

meaning it is engineered to open the electrical circuit at a 170°F temperature rise and automatically reset upon a 40°F drop (closing at 130°F)

Resideo L4006G1006 Controller 322838-754 The 3H0346700004 is the currentThe Resideo L4006G1006 is a professional grade high limit aquastat designed for precise temperature regulation in hydronic heating systems. This immersion style controller features an SPDT switch configuration, allowing it to function as a high limit, low limit, or circulator controller depending on the wiring. It utilizes a 1 2 inch NPT connection and a 3 8" x 2 7 8" copper sensing bulb with a 48 inch capillary tube for versatile mounting on boilers,