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Overview

The 3150 Series is a single-pole, single-throw switch activated by a snap-action bimetal disc. The case is laser welded to form a hermetically sealed steel housing, with a glass-to-metal seal at the terminal junction. The low profile and compact design allows it to be used in most applications that require miniaturization. Temperature calibrations are pre-set at the factory, and each unit is thermally and mechanically inspected. It is available to open or close on temperature rise. A variety of mounting brackets and terminals is available.

  • 3150: Not UL approved.
  • 3150U 120 Vac max.: UL/CSA approved.
  • 3150UX 240 Vac max.: UL/CSA approved.

Documents

TITLE DOCUMENT TYPE LANGUAGE SIZE
Precision Thermostats Datasheet -- 5MB
Thermostats Line Guide Product Line Guide English 444KB
Soldering Wire Leads on Precision Hermetic Thermostats Installation Instructions English 57KB

Browse 3150 Series Products

Product Functional Properties Open Temperature Close Temperature
3150 00010293 Open on rise 1.1 °C to 4.4 °C [2 °F to 8 °F] 4.4 °C [40 °F]
3150 00150041 Open on rise 110.0 °C [230 °F] 4.4 °C [8 °F] max. diff.
3150 00200526 Open on rise 78.9 °C [174 °F] 67.8 °C [154 °F]
3150 00230082 Close on rise 5.6 °C [10 °F] max. diff. 57.2 °C [135 °F]
3150 00260102 Close on rise 4.4 °C [8 °F] max. diff. 85.0 °C [185 °F]
3150 00500003 Close on rise 1.1 °C to 4.4 °C [2 °F to 8 °F] 57.2 °C [135 °F]
3150 00770021 Close on rise 3.3 °C [6 °F] max. diff. 60.0 °C [140 °F]
3150 00870006 Close on rise 3.3 °C [6 °F] max. diff. 0.0 °C [32 °F]
3150 01500002 Close on rise 54.4 °C [130 °F] 65.6 °C [150 °F]
3150U 00090182 Open on rise 140.0 °C [284 °F] 5.6 °C [10 °F] max. diff.