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Thermal Breakers Available. Next-Day Delivery.

How Many Types of Thermal Breakers are There?

Thermal breakers are classified into two main types, i.e., thermal magnetic circuit breakers and thermal automotive circuit breakers.

Thermal magnetic circuit breakers: These circuit breakers are designed to protect circuits from overcurrent with integrated electromagnetic and bimetallic strips that respond by tripping or opening the circuit. They protect the circuits and quickly respond to electrical surges or poor grounding.

Thermal automotive circuit breakers: Unlike magnetic circuit breakers, thermal automotive circuit breakers disrupt the current flow in automotive circuits to prevent faults like short circuits or overloads. These circuit breakers are designed for automotive, where engines remain on for a shorter period of time.

What is the Difference Between Thermal Circuit Breakers and Fuses?

Generally, thermal circuit breakers provide sophisticated circuit protection with automated switches that disrupt the current flow in the event of short circuits or overloads. The main difference is that fuses burn out and need replacement, while circuit breakers only require reset.

Applications of Thermal Circuit Breakers

These protective circuit breakers are primarily designed to protect electrical circuits from damage during electric shocks and overloads.

However, they work in different environments, such as magnetic circuit breakers are suitable for use in distribution boards, while thermal automotive circuit breakers are widely suited for vehicles, including:

Cars

Vans

Buses

Boats

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FC6605A, Cliff Electronics

Cliff Electronics Circuit Protection Devices - Manual Reset A-0709 Series Cliff Electronics manual reset A-0709 series of circuit protection devices offer a comprehensive solution to a variety of circuit protection requirements. The A-0709 series is available in either M10 or snap-in types, with a range of values up to 16A. Applications include power supplies, amplifiers, UPS, regulators and generators. Two mounting options Manual reset Long life Highly reliable

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4410.0066, Schurter

T12 series thermal circuit breakers Single-pole, compact T12 series circuit breakers with positive free trigger. Trigger via a bimetallic element. Threaded guide fixing. Essentially designed to protect against overloading motors, transformers, electro-magnets, etc. Rated voltage: 240 Vac - 28 Vdc Breaking capacity: 8 x In (240 Vac with In 200 A (240 Vac with In 400 A (28 Vdc Insulation resistance: > 100 MΩ (500 Vdc) Operating temperature: –5 °C → +60 °C Panel cutout: Ø 9.6 mm Approvals UL, CSA and VDE Thermal Magnetic Convertible All CBEs have blade terminals and have an insulation resistance greater than 100MΩ (MegaOhms).

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262-4263, RS PRO

RS PRO Thermal Circuit Breaker – 3A A single pole thermal circuit breaker is an electromechanical device used in electrical systems to protect circuits and equipment from overcurrent and overheating. The RS PRO circuit breaker interrupts the flow of current when it detects excessive heat caused by an overload or a fault in the circuit. Features and Benefits Disconnecting miniaturised single pole thermal circuit breaker Blade terminals fitting into component holder terminal blocks "RS PRO Full" series For use with RS PRO full component holders Push-push actuation Current rating: 3A Voltage rating: 250 VAC - 65 VDC Insulating Material: PA 66 – V0 Colour: Black Terminal Blocks Component Holders

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GV2ME016, Schneider Electric

The Schneider Electric Motor circuit breaker with thermal magnetic technology. It can operate in any position. Lugs terminals Ambient air temperature for storage -40 to 80 °C IP degree of protection IP20

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GV3P256, Schneider Electric

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GB2DB21, Schneider Electric

GB2 Thermal Magnetic Circuit Breakers DIN rail mounted, mechanically reset protection devices. Short circuit and overload protection for control circuits and associated industrial equipment, e.g. solenoid valves, electric brakes and transformers, etc Rated operational voltage of 415V 74mm high; depth 67mm (1P) 70mm (2P) Standards IEC947-2

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GV3P65, Schneider Electric

Motor Protection Circuit Breaker - GV3P Thanks to its new power terminals, this range of GV3 circuit-breakers assures improved reliability of connections and is designed to maintain a constant tightening force which assures a strong, safe and long lasting connection in the most demanding environments. Thermo Magnetic circuit-breakers Control and protection of motors from 5.5 kW to 30 kW Ring terminal product version designed for the asian market and specific applications High breaking capacity:50 kA/400 V from 40 to 65 A and 100 kA/400 V from 9 to 32 A 3-position, padlockable, rotary knob Trip test button on front face Sealable flap for protection of thermal setting IP65 enclosure Standards IEC 947 and UL 508 type E certification

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GV3P18, Schneider Electric

Motor Circuit Breaker - GV3P Thanks to its new power terminals, this range of GV3 circuit-breakers assures improved reliability of connections and is designed to maintain a constant tightening force which assures a strong, safe and long lasting connection in the most demanding environments. Thermo Magnetic circuit-breakers Control and protection of motors from 5.5 kW to 30 kW Ring terminal product version designed for the asian market and specific applications High breaking capacity:50 kA/400 V from 40 to 65 A and 100 kA/400 V from 9 to 32 A 3-position, padlockable, rotary knob Trip test button on front face Sealable flap for protection of thermal setting IP65 enclosure Standards IEC 947 and UL 508 type E certification

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3-128-197, Schurter

The Schurter thermal circuit breaker has a 1 pole in snap-in version positively trip-free release method of operation acc. to IEC: S-type different rocker and flange colours and 10A current. Unique UL rating of 277 VAC Finely graded rated currents High configurability (rocker colours, lettering) Appealing design

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3-128-232, Schurter

The Schurter thermal circuit breaker has a 2 pole in snap-in version positively trip-free release method of operation acc. to IEC: S-type different rocker and flange colours and 10A current. Unique UL rating of 277 VAC Finely graded rated currents High configurability (rocker colours, lettering) Appealing design

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3-128-234, Schurter

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4130-G211-K4M1-30A, ETA

4130 Series M12 thread-neck panel mounting Screw terminals Particularly suited for applications with high fault currents. IEC Classification R/TO Approvals UL and VDE (EN60934) Approvals UL; VDE

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Thermal Breakers

How Many Types of Thermal Breakers are There?

What is the Difference Between Thermal Circuit Breakers and Fuses?

Applications of Thermal Circuit Breakers

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FAQs