Mechanical Safety: The no voltage release manual reset function prevents accidental restarts

the element is likely cracked or chemically degraded and requires replacement

this sensor monitors air temperatures within a 40°F to 80°F range

a resistor or a different signal conditioner may be required to interface with the 0-20VDC Selectra valve requirement

Heavy-Duty Construction: Built with a rugged die-cast aluminum housing to withstand industrial combustion environments

Robertshaw 2374-510 Pressure Switch 318423-701 Mechanical Safety: The no voltageThe Robertshaw 2374 510 is a heavy duty universal air pressure switch designed for technicians who need a reliable, field adjustable solution for furnace draft proving and combustion air monitoring. Engineered with a broad set point range of 0. 10" to 10. 0" WC, this switch eliminates the need to carry dozens of fixed setting OEM controls. It features SPDT silver contacts rated for 1 10 HP at 120 277V AC, ensuring stable electrical switching even in