Thermal Cut-offs – Mouser India

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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 (INR) 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 140C switch temp. B12A14005L310100 Microtherm Sentronic 1: ₹823.55 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	₹823.55 ₹713.68 ₹576.11 ₹487.25 View ₹474.83 ₹400.31 ₹382.16 ₹328.66	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: ₹822.60 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	₹822.60 ₹712.73 ₹575.15 ₹487.25 View ₹474.83 ₹400.31 ₹382.16 ₹328.66	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: ₹822.60 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	₹822.60 ₹712.73 ₹575.15 ₹487.25 View ₹474.83 ₹400.31 ₹382.16 ₹328.66	Min.: 1 Mult.: 1	B12A	Bulk
Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 80C switch temp. B12A08005L310100 Microtherm Sentronic 1: ₹822.60 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	₹822.60 ₹712.73 ₹575.15 ₹487.25 View ₹474.83 ₹400.31 ₹382.16 ₹328.66	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: ₹847.44 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	₹847.44 ₹734.70 ₹592.35 ₹502.54 View ₹489.16 ₹412.73 ₹394.58 ₹338.21	Min.: 1 Mult.: 1	B12B	Bulk
Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Open (NO), SPST 70C switch temp. B12G07005L310100G402 Microtherm Sentronic 1: ₹964.00 96In Stock	Mfr. Part No. B12G07005L310100G402 Mouser Part No 256-B2G75L3G42	Microtherm Sentronic	Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Open (NO), SPST 70C switch temp. Learn More about Microtherm Sentronic b temperature switches	Datasheet	96In Stock	₹964.00 ₹835.02 ₹674.51 ₹571.33 View ₹557.00 ₹469.10 ₹448.08 ₹385.03	Min.: 1 Mult.: 1	B12G	Bulk
Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Open (NO), SPST 90C switch temp. B12B09005L310100U112 Microtherm Sentronic 1: ₹847.44 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	₹847.44 ₹734.70 ₹592.35 ₹502.54 View ₹489.16 ₹412.73 ₹394.58 ₹338.21	Min.: 1 Mult.: 1	B12B	Bulk
Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 140C switch temp. B12A14005L310100U294 Microtherm Sentronic 1: ₹598.08 1,004In Stock	Mfr. Part No. B12A14005L310100U294 Mouser Part No 256-B2A4005L3000U294	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	1,004In Stock	₹598.08 ₹504.45 ₹468.15 ₹425.15 View ₹395.54 ₹367.83 ₹339.17 ₹287.58	Min.: 1 Mult.: 1	B12A	Bulk
Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 140C switch temp. B12A14005L310100U186 Microtherm Sentronic 1: ₹856.99 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	₹856.99 ₹742.35 ₹599.04 ₹508.27 View ₹494.90 ₹416.55 ₹398.40 ₹342.03	Min.: 1 Mult.: 1	B12A	Bulk
Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 150C switch temp. B12A15005 L370100U186B245 Microtherm Sentronic 1: ₹944.89 998In Stock	Mfr. Part No. B12A15005 L370100U186B245 Mouser Part No 256-B2A5005L3000B245	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	998In Stock	₹944.89 ₹818.78 ₹661.14 ₹559.86 View ₹545.53 ₹459.55 ₹439.48 ₹377.38	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: ₹598.08 609In 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	609In Stock	₹598.08 ₹504.45 ₹468.15 ₹425.15 View ₹395.54 ₹367.83 ₹339.17 ₹287.58	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: ₹863.68 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	₹863.68 ₹748.08 ₹603.81 ₹512.09 View ₹498.72 ₹420.38 ₹401.27 ₹344.90	Min.: 1 Mult.: 1	B12A	Bulk
Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 155C switch temp. B12A15505 L370100U186B245 Microtherm Sentronic 1: ₹944.89 997In Stock	Mfr. Part No. B12A15505 L370100U186B245 Mouser Part No 256-B2A5505L3000B245	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	997In Stock	₹944.89 ₹818.78 ₹661.14 ₹559.86 View ₹545.53 ₹459.55 ₹439.48 ₹377.38	Min.: 1 Mult.: 1	B12A	Bulk
Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 155C switch temp. B12A15505 L370100U112 Microtherm Sentronic 1: ₹847.44 999In Stock	Mfr. Part No. B12A15505 L370100U112 Mouser Part No 256-B2A5505L3000U2	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	999In Stock	₹847.44 ₹734.70 ₹592.35 ₹502.54 View ₹489.16 ₹412.73 ₹394.58 ₹338.21	Min.: 1 Mult.: 1	B12A	Bulk
Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 155C switch temp. B12A15505 L370100U294 Microtherm Sentronic 1: ₹863.68 1,001In Stock	Mfr. Part No. B12A15505 L370100U294 Mouser Part No 256-B2A5505L3000U294	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	1,001In Stock	₹863.68 ₹748.08 ₹603.81 ₹512.09 View ₹498.72 ₹420.38 ₹401.27 ₹344.90	Min.: 1 Mult.: 1	B12A	Bulk
Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 160C switch temp. B12A16005 L370100U186B245 Microtherm Sentronic 1: ₹944.89 600In Stock	Mfr. Part No. B12A16005 L370100U186B245 Mouser Part No 256-B2A6005L3000B245	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	600In Stock	₹944.89 ₹818.78 ₹661.14 ₹559.86 View ₹545.53 ₹459.55 ₹439.48 ₹377.38	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: ₹863.68 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	₹863.68 ₹748.08 ₹603.81 ₹512.09 View ₹498.72 ₹420.38 ₹401.27 ₹344.90	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: ₹598.08 758In 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	758In Stock	₹598.08 ₹504.45 ₹468.15 ₹425.15 View ₹395.54 ₹367.83 ₹339.17 ₹287.58	Min.: 1 Mult.: 1	B12A	Bulk
Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 125C switch temp. B12E12505L310100G714 Microtherm Sentronic 1: ₹1,064.32 932In Stock	Mfr. Part No. B12E12505L310100G714 Mouser Part No 256-B2E2505L3000G74	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	932In Stock	₹1,064.32 ₹921.96 ₹744.26 ₹630.56 View ₹614.32 ₹517.83 ₹494.90 ₹425.15	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: ₹822.60 50Expected 07-12-2026	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 07-12-2026	₹822.60 ₹712.73 ₹575.15 ₹487.25 View ₹474.83 ₹400.31 ₹382.16 ₹328.66	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: ₹822.60 90Expected 17-11-2026	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 17-11-2026	₹822.60 ₹712.73 ₹575.15 ₹487.25 View ₹474.83 ₹400.31 ₹382.16 ₹328.66	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: ₹864.64 80Expected 25-09-2026	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 25-09-2026	₹864.64 ₹749.03 ₹604.77 ₹512.09 View ₹498.72 ₹420.38 ₹401.27 ₹344.90	Min.: 1 Mult.: 1	B12A	Bulk
Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 130C switch temp. B12A13005L310100U186 Microtherm Sentronic 1: ₹856.99 90Expected 13-11-2026	Mfr. Part No. B12A13005L310100U186 Mouser Part No 256-B2A3005L3000U86	Microtherm Sentronic	Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 130C switch temp. Learn More about Microtherm Sentronic b temperature switches	Datasheet	90Expected 13-11-2026	₹856.99 ₹742.35 ₹599.04 ₹508.27 View ₹494.90 ₹416.55 ₹398.40 ₹342.03	Min.: 1 Mult.: 1	B12A	Bulk
Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 95C switch temp. B12A09505L310100 Microtherm Sentronic 1: ₹822.60 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. B12A09505L310100 Mouser Part No 256-B12A09505L310100	Microtherm Sentronic	Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 95C switch temp. Learn More about Microtherm Sentronic b temperature switches	Datasheet	Non-Stocked Lead-Time 12 Weeks	₹822.60 ₹712.73 ₹575.15 ₹487.25 View ₹474.83 ₹400.31 ₹382.16 ₹328.66	Min.: 1 Mult.: 1	B12A	Bulk
Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 100C switch temp. B12A10005L310100 Microtherm Sentronic 1: ₹822.60 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. B12A10005L310100 Mouser Part No 256-B12A10005L310100	Microtherm Sentronic	Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 100C switch temp. Learn More about Microtherm Sentronic b temperature switches	Datasheet	Non-Stocked Lead-Time 12 Weeks	₹822.60 ₹712.73 ₹575.15 ₹487.25 View ₹474.83 ₹400.31 ₹382.16 ₹328.66	Min.: 1 Mult.: 1	B12A	Bulk

B Series Bimetal Snap-Action Temperature Switches

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