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The Robertshaw 1950-001 Thermopile
Industrial Voltage Compatibility: Specifically rated for 480V circuits
The 1/8" NPT center back connection enables seamless stem mounting into terminal equipment or pneumatic control panels
This unit is the direct replacement for 024-31892-000 and comes equipped with screw terminals and integrated 1 NO (Normally Open) and 1 NC (Normally Closed) auxiliary contacts for comprehensive status monitoring
Common Questions: Can this be used for both pump-up and low-water cutoff
McDonnell & Miller 51-2 Feeder Els PW 29614 The Robertshaw 1950-001 ThermopileThe McDonnell & Miller 51 2 (Part Number 135000) is a heavy duty mechanical water feeder and low water cut off (LWCO) designed for industrial and commercial low pressure steam and hot water boilers. Engineered for systems with a capacity exceeding 5,000 sq. ft., this unit provides critical protection by maintaining a consistent minimum safe water level regardless of electrical status. It features 1" NPT female connections and a snap acting SPDT switch
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