Lochinvar 100170641 Limit Switch 100170641 Els PW 17895 Featuring a vibrant red casing

Featuring a vibrant red casing for immediate high-side identification

Its robust diaphragm design is built to withstand the heat cycles of a standard cabinet

it provides high-flow capacity with minimal pressure drop

Internal Equalization: Reduces installation time and potential leak points by removing the requirement for an external pressure line

this model is strictly CCW (Counter-Clockwise) rotation

Lochinvar 100170641 Limit Switch 100170641 Els PW 17895 Featuring a vibrant red casingThe Lochinvar 100170641 Limit Switch is a critical safety component designed for high performance hydronic systems, serving as the direct OEM replacement for the obsolete TST30010. Engineered with an operating range of 30 210F, this auto reset high limit switch monitors internal water temperatures to prevent catastrophic overheating in Lochinvar Copper Fin II boilers and pool heaters. When temperatures exceed the 210F threshold, the switch opens the