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Overview

The 3156 Series is a single-pole, single-throw switch activated by a snap-action bimetal disc. It has WE-1 gold alloy cross point contacts for use in potential low voltage applications The case is laser welded to form a hermetically-sealed steel housing, with glass-to-metal seal at the terminal junction. Its low silhouette and compact design allows use 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.

  • 3156: Not UL/CSA approved.
  • 3156U: 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 3156 Series Products

Product Functional Properties Open Temperature Close Temperature
3156 00530006 Close on rise 101.7 °C [215 °F] 45.0 °C [113 °F]
3156 00010001 Open on rise 75.0 °C [167 °F] 69.4 °C [157 °F]
3156 00090009 Open on rise 76.7 °C [170 °F] 48.9 °C [120 °F]
3156 00200031 Close on rise 54.4 °C [130 °F] 65.6 °C [150 °F]
3156 00230057 Close on rise 87.8 °C [190 °F] 104.4 °C [220 °F]
3156 00260031 Close on rise 73.9 °C [165 °F] 3.9 °C [7 °F]
3156U 00490004 Open on rise 42.7 °C [109 °F] 3.3 °C [6 °F] max. diff.
3156U 00960002 Close on rise 100.0 °C [212 °F] 70.0 °C [158 °F]
3156U 01370001 Open on rise 85.0 °C [185 °F] 73.9 °C [165 °F]
3156U 01430001 Open on rise 70.0 °C [158 °F] 37.8 °C [100 °F]