Fenwal 01-018023-000 Thermoswitch

The Fenwal 01-018023-000 Thermoswitch is a high-performance, strut-and-tube type temperature control switch engineered for rapid thermal response and extreme sensitivity in industrial environments. Designed with a 300 series stainless steel shell and a robust brass coupling head, this unpowered mechanical controller utilizes the differential expansion principle between the outer sensing shell and the internal strut assembly. This Fenwal temperature switch features a 0.625" diameter probe and provides a wide operating range from -100°F to 600°F, making it a versatile solution for hydraulic presses, deep fat fryers, and paint drying equipment.

Operating as a close on rise thermal switch, the 01-018023-000 ensures precise set-point accuracy with a resolution sensitivity of 0.1°F. It serves as the direct stainless steel replacement for the obsolete 01-018021-000 brass-shelled model, offering superior corrosion resistance while maintaining the same 1/2" NPT coupling head mounting footprint. The 8-inch wire leads facilitate direct integration into electrical conduit, providing a vibration-resistant control point that requires no external power supply to actuate.

• Rapid Thermal Response: The active sensing shell acts as the primary thermal element for near-instantaneous contact actuation.
• Extreme Sensitivity: Delivers high-resolution control (0.1°F) for applications requiring a narrow differential thermoswitch.
• Industrial Durability: The 300 series stainless steel construction provides enhanced longevity over original brass models in high-heat environments.
• Mechanical Reliability: Operates without an external power source, reducing points of failure in safety-critical systems.
• Versatile Mounting: The coupling head design with hexagonal section allows for easy installation in tapped holes or direct conduit attachment.

Is the Fenwal 01-018023-000 compatible with older 01-018021-000 units?
Yes, the 01-018023-000 is the recommended direct replacement for the 01-018021-000. While the internal mechanism remains consistent, the shell material has been upgraded from brass to 300 series stainless steel for better durability.

What is the maximum current rating for this thermoswitch?
These industrial thermal switches typically support a 10 Amp contact rating at 120 VAC or 5 Amps at 240 VAC, though you should verify specific load requirements against your system's schematic.

Can this device be used in hazardous locations?
While the thermoswitch is a recognized UL/CSA component, use in hazardous environments typically requires a dedicated thermowell (such as the Fenwal 80016 series) to isolate the device from volatile mediums.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.