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AutomationDirect: Ashcroft T4 Series Mechanical Temperature Switches

pbus 90 automation ashcroftt4series 1200

August 11, 2026

Ashcroft T4 series mechanical temperature switches provide reliable temperature monitoring and control for demanding industrial applications.

These rugged switches feature high 15A SPDT switch contacts that can directly control larger loads, reducing or eliminating the need for external contactors or interposing relays.

The T4 series offers field-adjustable setpoints over a wide -40 to 525°F (-40 to 274°C) setpoint range, with direct- and remote-mount models available to suit a variety of installation requirements. A setpoint locking screw helps secure the selected setpoint, and the epoxy-coated aluminum housing with NEMA 4X/IP66 protection withstands harsh industrial and outdoor environments. A standard 1/2-inch male NPT process connection allows easy installation in existing piping and equipment.

Ashcroft mechanical temperature switches start at $459.00 (T424TS027-40/60F).

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