Thermal Cut-offs – Mouser Denmark

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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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (DKK) Filter the results in the table by unit price based on your quantity.	Qty.	Series	Packaging
Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 155C switch temp. B12A15505 L370100U186 Microtherm Sentronic 1: 57,59 kr. 897In Stock	Mfr. Part No. B12A15505 L370100U186 Mouser Part No 256-B2A5505L3000U86	Microtherm Sentronic	Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 155C switch temp. Learn More about Microtherm Sentronic b temperature switches	Datasheet	897In Stock	57,59 kr. 49,91 kr. 40,28 kr. 34,17 kr. View 33,20 kr. 27,98 kr. 26,78 kr. 22,98 kr.	Min.: 1 Mult.: 1	B12A	Bulk
Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 125C switch temp. B12A12505L310100U253 Microtherm Sentronic 1: 58,04 kr. 993In Stock	Mfr. Part No. B12A12505L310100U253 Mouser Part No 256-B2A2505L3000U253	Microtherm Sentronic	Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 125C switch temp. Learn More about Microtherm Sentronic b temperature switches	Datasheet	993In Stock	58,04 kr. 50,28 kr. 40,58 kr. 34,39 kr. View 33,50 kr. 28,20 kr. 26,93 kr. 23,13 kr.	Min.: 1 Mult.: 1	B12A	Bulk
Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 70C switch temp. B12A07005L310100U253 Microtherm Sentronic 1: 58,04 kr. 875In Stock	Mfr. Part No. B12A07005L310100U253 Mouser Part No 256-B2A75L3U253	Microtherm Sentronic	Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 70C switch temp. Learn More about Microtherm Sentronic b temperature switches	Datasheet	875In Stock	58,04 kr. 50,28 kr. 40,58 kr. 34,39 kr. View 33,50 kr. 28,20 kr. 26,93 kr. 23,13 kr.	Min.: 1 Mult.: 1	B12A	Bulk
Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 70C switch temp. B12A07005L310100U294 Microtherm Sentronic 1: 58,04 kr. 754In Stock	Mfr. Part No. B12A07005L310100U294 Mouser Part No 256-B2A75L3U294	Microtherm Sentronic	Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 70C switch temp. Learn More about Microtherm Sentronic b temperature switches	Datasheet	754In Stock	58,04 kr. 50,28 kr. 40,58 kr. 34,39 kr. View 33,50 kr. 28,20 kr. 26,93 kr. 23,13 kr.	Min.: 1 Mult.: 1	B12A	Bulk
Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 70C switch temp. B12E07005L310100G714 Microtherm Sentronic 1: 71,54 kr. 747In Stock	Mfr. Part No. B12E07005L310100G714 Mouser Part No 256-B2E07005L3000G74	Microtherm Sentronic	Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 70C switch temp. Learn More about Microtherm Sentronic b temperature switches	Datasheet	747In Stock	71,54 kr. 61,99 kr. 50,06 kr. 42,37 kr. View 41,25 kr. 34,76 kr. 33,20 kr. 28,57 kr.	Min.: 1 Mult.: 1	B12E	Bulk
Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 150C switch temp. B12E15005 L370100G714 Microtherm Sentronic 1: 71,54 kr. 982In Stock	Mfr. Part No. B12E15005 L370100G714 Mouser Part No 256-B2E5005L3000G74	Microtherm Sentronic	Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 150C switch temp. Learn More about Microtherm Sentronic b temperature switches	Datasheet	982In Stock	71,54 kr. 61,99 kr. 50,06 kr. 42,37 kr. View 41,25 kr. 34,76 kr. 33,20 kr. 28,57 kr.	Min.: 1 Mult.: 1	B12E	Bulk
Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 80C switch temp. B12A08005L310100 Microtherm Sentronic 1: 55,20 kr. 5In Stock	Mfr. Part No. B12A08005L310100 Mouser Part No 256-B12A08005L310100	Microtherm Sentronic	Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 80C switch temp. Learn More about Microtherm Sentronic b temperature switches	Datasheet	5In Stock	55,20 kr. 47,89 kr. 38,64 kr. 32,75 kr. View 31,85 kr. 26,86 kr. 25,66 kr. 22,08 kr.	Min.: 1 Mult.: 1	B12A	Bulk
Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 110C switch temp. B12A11005L310100 Microtherm Sentronic 1: 38,27 kr. 62In Stock	Mfr. Part No. B12A11005L310100 Mouser Part No 256-B12A11005L310100	Microtherm Sentronic	Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 110C switch temp. Learn More about Microtherm Sentronic b temperature switches	Datasheet	62In Stock	38,27 kr. 32,30 kr. 29,99 kr. 27,30 kr. View 25,36 kr. 23,57 kr. 21,86 kr.	Min.: 1 Mult.: 1	B12A	Bulk
Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 70C switch temp. B12A07005L310100 Microtherm Sentronic 1: 55,20 kr. 5In Stock	Mfr. Part No. B12A07005L310100 Mouser Part No 256-B12A07005L310100	Microtherm Sentronic	Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 70C switch temp. Learn More about Microtherm Sentronic b temperature switches	Datasheet	5In Stock	55,20 kr. 47,89 kr. 38,64 kr. 32,75 kr. View 31,85 kr. 26,86 kr. 25,66 kr. 22,08 kr.	Min.: 1 Mult.: 1	B12A	Bulk
Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 125C switch temp. B12A12505L310100 Microtherm Sentronic 1: 55,20 kr. 95In Stock	Mfr. Part No. B12A12505L310100 Mouser Part No 256-B12A12505L310100	Microtherm Sentronic	Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 125C switch temp. Learn More about Microtherm Sentronic b temperature switches	Datasheet	95In Stock	55,20 kr. 47,89 kr. 38,64 kr. 32,75 kr. View 31,85 kr. 26,86 kr. 25,66 kr. 22,08 kr.	Min.: 1 Mult.: 1	B12A	Bulk
Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 140C switch temp. B12A14005L310100 Microtherm Sentronic 1: 55,28 kr. 27In Stock	Mfr. Part No. B12A14005L310100 Mouser Part No 256-B12A14005L310100	Microtherm Sentronic	Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 140C switch temp. Learn More about Microtherm Sentronic b temperature switches	Datasheet	27In Stock	55,28 kr. 47,89 kr. 38,72 kr. 32,75 kr. View 31,85 kr. 26,86 kr. 25,66 kr. 22,08 kr.	Min.: 1 Mult.: 1	B12A	Bulk
Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 150C switch temp. B12A15005 L370100 Microtherm Sentronic 1: 55,20 kr. 100In Stock	Mfr. Part No. B12A15005 L370100 Mouser Part No 256-B12A15005L310100	Microtherm Sentronic	Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 150C switch temp. Learn More about Microtherm Sentronic b temperature switches	Datasheet	100In Stock	55,20 kr. 47,89 kr. 38,64 kr. 32,75 kr. View 31,85 kr. 26,86 kr. 25,66 kr. 22,08 kr.	Min.: 1 Mult.: 1	B12A	Bulk
Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Open (NO), SPST 95C switch temp. B12B09505L310100U112 Microtherm Sentronic 1: 56,92 kr. 95In Stock	Mfr. Part No. B12B09505L310100U112 Mouser Part No 256-B2B09505L3000U2	Microtherm Sentronic	Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Open (NO), SPST 95C switch temp. Learn More about Microtherm Sentronic b temperature switches	Datasheet	95In Stock	56,92 kr. 49,31 kr. 39,76 kr. 33,72 kr. View 32,82 kr. 27,75 kr. 26,48 kr. 22,68 kr.	Min.: 1 Mult.: 1	B12B	Bulk
Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Open (NO), SPST 90C switch temp. B12B09005L310100U112 Microtherm Sentronic 1: 56,92 kr. 96In Stock	Mfr. Part No. B12B09005L310100U112 Mouser Part No 256-B2B09005L3000U2	Microtherm Sentronic	Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Open (NO), SPST 90C switch temp. Learn More about Microtherm Sentronic b temperature switches	Datasheet	96In Stock	56,92 kr. 49,31 kr. 39,76 kr. 33,72 kr. View 32,82 kr. 27,75 kr. 26,48 kr. 22,68 kr.	Min.: 1 Mult.: 1	B12B	Bulk
Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 140C switch temp. B12A14005L310100U186 Microtherm Sentronic 1: 57,52 kr. 669In Stock	Mfr. Part No. B12A14005L310100U186 Mouser Part No 256-B2A4005L3000U86	Microtherm Sentronic	Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 140C switch temp. Learn More about Microtherm Sentronic b temperature switches	Datasheet	669In Stock	57,52 kr. 49,83 kr. 40,21 kr. 34,17 kr. View 33,20 kr. 27,98 kr. 26,78 kr. 22,98 kr.	Min.: 1 Mult.: 1	B12A	Bulk
Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 150C switch temp. B12A15005 L370100U253 Microtherm Sentronic 1: 40,13 kr. 509In Stock	Mfr. Part No. B12A15005 L370100U253 Mouser Part No 256-B2A5005L3000U253	Microtherm Sentronic	Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 150C switch temp. Learn More about Microtherm Sentronic b temperature switches	Datasheet	509In Stock	40,13 kr. 33,87 kr. 31,41 kr. 28,57 kr. View 26,56 kr. 24,69 kr. 22,98 kr.	Min.: 1 Mult.: 1	B12A	Bulk
Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 150C switch temp. B12A15005 L370100U294 Microtherm Sentronic 1: 57,96 kr. 969In Stock	Mfr. Part No. B12A15005 L370100U294 Mouser Part No 256-B2A5005L3000U294	Microtherm Sentronic	Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 150C switch temp. Learn More about Microtherm Sentronic b temperature switches	Datasheet	969In Stock	57,96 kr. 50,21 kr. 40,58 kr. 34,39 kr. View 33,50 kr. 28,20 kr. 26,93 kr. 23,13 kr.	Min.: 1 Mult.: 1	B12A	Bulk
Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 160C switch temp. B12A16005 L370100U294 Microtherm Sentronic 1: 57,96 kr. 987In Stock	Mfr. Part No. B12A16005 L370100U294 Mouser Part No 256-B2A6005L3000U294	Microtherm Sentronic	Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 160C switch temp. Learn More about Microtherm Sentronic b temperature switches	Datasheet	987In Stock	57,96 kr. 50,21 kr. 40,58 kr. 34,39 kr. View 33,50 kr. 28,20 kr. 26,93 kr. 23,13 kr.	Min.: 1 Mult.: 1	B12A	Bulk
Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 110C switch temp. B12A11005L310100U112 Microtherm Sentronic 1: 56,92 kr. 90Expected 11/12/2026	Mfr. Part No. B12A11005L310100U112 Mouser Part No 256-B2A005L3000U2	Microtherm Sentronic	Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 110C switch temp. Learn More about Microtherm Sentronic b temperature switches	Datasheet	90Expected 11/12/2026	56,92 kr. 49,31 kr. 39,76 kr. 33,72 kr. View 32,82 kr. 27,75 kr. 26,48 kr. 22,68 kr.	Min.: 1 Mult.: 1	B12A	Bulk
Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 90C switch temp. B12A09005L310100U112 Microtherm Sentronic 1: 56,92 kr. 90Expected 11/12/2026	Mfr. Part No. B12A09005L310100U112 Mouser Part No 256-B2A09005L3000U2	Microtherm Sentronic	Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 90C switch temp. Learn More about Microtherm Sentronic b temperature switches	Datasheet	90Expected 11/12/2026	56,92 kr. 49,31 kr. 39,76 kr. 33,72 kr. View 32,82 kr. 27,75 kr. 26,48 kr. 22,68 kr.	Min.: 1 Mult.: 1	B12A	Bulk
Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 80C switch temp. B12E08005L310100G714 Microtherm Sentronic 1: 71,47 kr. 96Expected 18/12/2026	Mfr. Part No. B12E08005L310100G714 Mouser Part No 256-B2E08005L3000G74	Microtherm Sentronic	Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 80C switch temp. Learn More about Microtherm Sentronic b temperature switches	Datasheet	96Expected 18/12/2026	71,47 kr. 61,92 kr. 49,98 kr. 42,37 kr. View 41,25 kr. 34,76 kr. 33,20 kr. 28,57 kr.	Min.: 1 Mult.: 1	B12E	Bulk
Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 90C switch temp. B12E09005L310100G714 Microtherm Sentronic 1: 71,47 kr. 96Expected 18/12/2026	Mfr. Part No. B12E09005L310100G714 Mouser Part No 256-B2E09005L3000G74	Microtherm Sentronic	Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 90C switch temp. Learn More about Microtherm Sentronic b temperature switches	Datasheet	96Expected 18/12/2026	71,47 kr. 61,92 kr. 49,98 kr. 42,37 kr. View 41,25 kr. 34,76 kr. 33,20 kr. 28,57 kr.	Min.: 1 Mult.: 1	B12E	Bulk
Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 155C switch temp. B12A15505 L370100 Microtherm Sentronic 1: 55,20 kr. 50Expected 18/12/2026	Mfr. Part No. B12A15505 L370100 Mouser Part No 256-B12A15505L310100	Microtherm Sentronic	Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 155C switch temp. Learn More about Microtherm Sentronic b temperature switches	Datasheet	50Expected 18/12/2026	55,20 kr. 47,89 kr. 38,64 kr. 32,75 kr. View 31,85 kr. 26,86 kr. 25,66 kr. 22,08 kr.	Min.: 1 Mult.: 1	B12A	Bulk
Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 170C switch temp. B12A17005 L370100 Microtherm Sentronic 1: 55,20 kr. 90Expected 20/11/2026	Mfr. Part No. B12A17005 L370100 Mouser Part No 256-B12A17005L310100	Microtherm Sentronic	Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 170C switch temp. Learn More about Microtherm Sentronic b temperature switches	Datasheet	90Expected 20/11/2026	55,20 kr. 47,89 kr. 38,64 kr. 32,75 kr. View 31,85 kr. 26,86 kr. 25,66 kr. 22,08 kr.	Min.: 1 Mult.: 1	B12A	Bulk
Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 125C switch temp. B12A12505L310100U294 Microtherm Sentronic 1: 58,04 kr. 80Expected 20/10/2026	Mfr. Part No. B12A12505L310100U294 Mouser Part No 256-B2A2505L3000U294	Microtherm Sentronic	Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 125C switch temp. Learn More about Microtherm Sentronic b temperature switches	Datasheet	80Expected 20/10/2026	58,04 kr. 50,28 kr. 40,58 kr. 34,39 kr. View 33,50 kr. 28,20 kr. 26,93 kr. 23,13 kr.	Min.: 1 Mult.: 1	B12A	Bulk

B Series Bimetal Snap-Action Temperature Switches

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