Ashcroft T424TS040 100F Temperature Switch Dpdt Rigid Stem

Product Description

The ASHCROFT T424TS040 100F is a single-setpoint, watertight temperature switch designed for industrial and commercial process control applications. It features a rigid stem construction and a DPDT (double-pole, double-throw) contact form, making it suitable for control circuits that require both normally open and normally closed switching in a single device. The switch covers a temperature range of 0 to 100 degrees F and carries multiple safety and compliance certifications including UL, CSA, CE, RoHS, ATEX, and IECEx. Licensed HVAC technicians, industrial instrumentation technicians, and mechanical contractors are the typical installers for this class of device.

This temperature switch is rated for use across a broad range of applications including boilers and burners, heating and air conditioning systems, hydraulic and lubrication systems, food processing equipment, chemical and petrochemical plants, degreasers and evaporators, marine equipment, offshore oil rigs, power plants, ground support equipment, and pulp and paper processing. The rigid stem design supports direct immersion into process fluid or pipe installations where a fixed probe orientation is required. Its watertight housing makes it appropriate for wet or wash-down environments.

Key Features

• Single-setpoint control with DPDT contact form for flexible circuit wiring
• Temperature range of 0 to 100 degrees F
• Rigid stem construction for direct immersion or pipe-mounted installation
• Watertight housing rated for wet and wash-down environments
• Certified to UL, CSA, CE, RoHS, ATEX (Sira 02ATEX1391X), ATEX CSAE 21UKEX1056X, and IECEx standards
• Suitable for boiler controls, HVAC systems, industrial process monitoring, and marine applications

Compatibility

Designed for use with boilers and burners, heating and air conditioning systems, hydraulic and lubrication systems, food processing equipment, chemical and petrochemical plants, degreasers and evaporators, marine equipment, offshore oil rigs, power plants, ground support equipment, and pulp and paper processing systems where a single-setpoint temperature switch with a rigid stem is required.

Installation Notes

Installation should be performed by a licensed instrumentation technician, mechanical contractor, or qualified HVAC technician in accordance with applicable local codes and the NEC where electrical connections are involved. De-energize all connected circuits and isolate the process fluid before removing or installing the switch. The rigid stem requires correct immersion depth into the process medium to ensure accurate setpoint actuation. Verify contact form wiring is correct for the target control circuit before restoring power.