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.

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Description Datasheet Availability Pricing (EUR) 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
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
1.000In 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 155C switch temp.
Datasheet
897In 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 160C switch temp.
Datasheet
979In 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
980In 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 160C switch temp.
Datasheet
1.000In 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
875In 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
776In 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
761In 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
1.010In 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 155C switch temp.
Datasheet
999In Stock
Min.: 1
Mult.: 1

B12E Bulk
Microtherm Sentronic Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 160C switch temp.
Datasheet
1.000In 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
961In 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
96Expected 3/27/2026
Min.: 1
Mult.: 1

B12B Bulk
Microtherm Sentronic Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Open (NO), SPST 95C switch temp.
Datasheet
96Expected 3/27/2026
Min.: 1
Mult.: 1

B12B 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