B Series Bimetal Snap-Action Temperature Switches

Microtherm Sentronic B Series Bimetal Snap-Action Temperature Switches feature a bimetallic snap-disc with a fixed switching temperature as the switching mechanism. The function of these switches includes typically closed or normally open operation, commonly used as a temperature limiter to protect or control devices from overheating. The B Series offers a current rating of 1-13A max to 30A, up to 10,000 switching cycles, with various packaging options. These switches also feature non-current carrying brass contacts. Microtherm Sentronic B Series Bimetal Snap-Action Temperature Switches are ideal for motors, transformers, electronics, sensors, pumps, converters, and more applications.

Results: 528
Select Image Part #
 Mfr.
Description Datasheet Availability Pricing (GBP) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Contact Rating
Rated Temperature
Tolerance
Maximum Voltage
Series
Packaging
Microtherm Sentronic Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 150C switch temp.
Datasheet
100In Stock
Min.: 1
Mult.: 1

B12A Bulk
Microtherm Sentronic Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Open (NO), SPST 90C switch temp.
Datasheet
96In Stock
Min.: 1
Mult.: 1

B12B Bulk
Microtherm Sentronic Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Open (NO), SPST 95C switch temp.
Datasheet
95In Stock
Min.: 1
Mult.: 1

B12B Bulk
Microtherm Sentronic Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Open (NO), SPST 70C switch temp.
Datasheet
96In Stock
Min.: 1
Mult.: 1

B12G Bulk
Microtherm Sentronic Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 140C switch temp.
Datasheet
1,004In Stock
Min.: 1
Mult.: 1

B12A Bulk
Microtherm Sentronic Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 140C switch temp.
Datasheet
669In Stock
Min.: 1
Mult.: 1

B12A Bulk
Microtherm Sentronic Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 150C switch temp.
Datasheet
998In Stock
Min.: 1
Mult.: 1

B12A Bulk
Microtherm Sentronic Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 150C switch temp.
Datasheet
609In Stock
Min.: 1
Mult.: 1

B12A Bulk
Microtherm Sentronic Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 150C switch temp.
Datasheet
969In Stock
Min.: 1
Mult.: 1

B12A Bulk
Microtherm Sentronic Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 150C switch temp.
Datasheet
1,004In Stock
Min.: 1
Mult.: 1

B12A Bulk
Microtherm Sentronic Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 155C switch temp.
Datasheet
997In Stock
Min.: 1
Mult.: 1

B12A Bulk
Microtherm Sentronic Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 155C switch temp.
Datasheet
999In Stock
Min.: 1
Mult.: 1

B12A Bulk
Microtherm Sentronic Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 155C switch temp.
Datasheet
1,001In Stock
Min.: 1
Mult.: 1

B12A Bulk
Microtherm Sentronic Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 160C switch temp.
Datasheet
600In Stock
Min.: 1
Mult.: 1

B12A Bulk
Microtherm Sentronic Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 160C switch temp.
Datasheet
1,007In Stock
Min.: 1
Mult.: 1

B12A Bulk
Microtherm Sentronic Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 70C switch temp.
Datasheet
758In Stock
Min.: 1
Mult.: 1

B12A Bulk
Microtherm Sentronic Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 70C switch temp.
Datasheet
751In Stock
Min.: 1
Mult.: 1

B12E Bulk
Microtherm Sentronic Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 125C switch temp.
Datasheet
932In Stock
Min.: 1
Mult.: 1

B12E Bulk
Microtherm Sentronic Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 140C switch temp.
Datasheet
1,009In Stock
Min.: 1
Mult.: 1

B12E Bulk
Microtherm Sentronic Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 150C switch temp.
Datasheet
983In Stock
Min.: 1
Mult.: 1

B12E Bulk
Microtherm Sentronic Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 125C switch temp.
Datasheet
80Expected 25/09/2026
Min.: 1
Mult.: 1

B12A Bulk
Microtherm Sentronic Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 130C switch temp.
Datasheet
90Expected 13/11/2026
Min.: 1
Mult.: 1

B12A Bulk
Microtherm Sentronic Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 95C switch temp.
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1
Mult.: 1

B12A Bulk
Microtherm Sentronic Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 100C switch temp.
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1
Mult.: 1

B12A Bulk
Microtherm Sentronic Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 120C switch temp.
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1
Mult.: 1

B12A Bulk