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Showing Results For: Thermal Breakers

Thermal Breakers

Thermal breakers are essential protective devices designed to prevent excessive currents from the circuits and protect them from short-circuits or tripping. Unlike fuses, these breakers work similarly; however, a thermal breaker consists of a switch that can be reset in case of tripping. These safety devices can effectively avoid fires, damage, or other electrical dangers resulting from voltage fluctuations.

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 automotives, 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, magnetic circuit breakers, and automotive 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, etc.

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Schneider Electric
GB2CB14, Schneider Electric
2 In Stock
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1 +
£ 22.98
10 +
£ 21.62
15 +
£ 20.69
Schneider Electric
Rohs Verified
GB2CD06, Schneider Electric
39 In Stock
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1 +
£ 39.91
10 +
£ 37.53
15 +
£ 35.91
Schneider Electric
GB2DB21, Schneider Electric
9 In Stock
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1 +
£ 59.27
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£ 55.72
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£ 53.34
Phoenix Contact
Rohs Verified
0914099, Phoenix Contact
999999997 In Stock
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1 +
£ 80.55
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£ 78.13
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£ 73.46
Schneider Electric
GB2CB06, Schneider Electric
11 In Stock
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£ 22.98
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£ 21.62
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£ 20.69
Schneider Electric
GB2CB05, Schneider Electric
8 In Stock
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£ 22.98
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£ 21.62
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£ 20.69
Schneider Electric
GB2CD12, Schneider Electric
49 In Stock
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£ 39.91
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£ 37.53
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£ 35.91
Schneider Electric
GB2CD10, Schneider Electric
13 In Stock
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£ 39.91
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£ 37.52
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£ 35.92
Schneider Electric
GB2CB09, Schneider Electric
17 In Stock
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£ 22.98
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£ 21.62
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£ 20.69
Schneider Electric
Rohs Verified
GV3L50, Schneider Electric
6 In Stock
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£ 211.95
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£ 199.22
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£ 190.76
Phoenix Contact
Rohs Verified
2800881, Phoenix Contact
2 In Stock
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£ 68.64
Schneider Electric
GB2CB08, Schneider Electric
3 In Stock
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£ 22.98
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£ 21.62
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£ 20.69
Schneider Electric
GB2CB10, Schneider Electric
4 In Stock
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£ 24.20
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£ 22.77
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£ 21.81
Schneider Electric
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GV3L40, Schneider Electric
2 In Stock
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£ 192.88
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£ 181.33
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£ 173.58
Schneider Electric
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GV3L65, Schneider Electric
2 In Stock
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£ 226.53
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£ 212.90
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£ 203.88
Phoenix Contact
Rohs Verified
0915836, Phoenix Contact
Pre Order
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£ 291.99
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£ 283.88
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£ 280.00
Schneider Electric
GB2CB22, Schneider Electric
Pre Order
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£ 27.14
Schneider Electric
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GB2CD14, Schneider Electric
1 In Stock
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£ 39.91
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£ 37.48
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£ 35.91
Schneider Electric
GB2CB12, Schneider Electric
15 In Stock
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£ 22.98
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£ 21.62
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£ 20.69
Schneider Electric
GB2CB20, Schneider Electric
14 In Stock
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£ 22.98
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£ 21.62
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Schneider Electric
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GV3L25, Schneider Electric
1 In Stock
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£ 158.13
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£ 148.64
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£ 142.31
Schneider Electric
GB2CB16, Schneider Electric
19 In Stock
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£ 22.98
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£ 21.62
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£ 20.69
Schneider Electric
GB2CB07, Schneider Electric
31 In Stock
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£ 22.98
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£ 21.62
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£ 20.69
Schurter
Rohs Verified
4400.0034, Schurter
999999997 In Stock
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100 +
£ 4.82
Schneider Electric
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GV3P18, Schneider Electric
19 In Stock
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1 +
£ 122.19
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New Items
New items
118968, Eaton

118968, Eaton

The Eaton makes this Circuit breaker which is developed for use in motor circuits with contactor. The mounting is always flexible due to the modular function groups, with electronic release for the motor protection with phase failure sensitivity. These motor protection circuit breaker from NZM..-ME..NA series cover all applications with only four compact sizes, and this device is rated for 140 A at 690 Vac and it has 3 poles. It comes with additional motor protective features Adjustable overload releases Ir and adjustable time delay setting to overcome current peaks
New items
FC6605A, Cliff Electronics

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
New items
GV4L12N6, Schneider Electric

GV4L12N6, Schneider Electric

New TeSys GV4 is a compact and robust motor circuit breaker, up to 115 A with 100 kA breaking capacity, available with 3 kinds of protection: magnetic, electronic thermal magnetic, electronic thermal magnetic with advanced protections and alarming designed for demanding applications.TeSys GV4 is also equiped with patented Everlink power connections, and may be equiped with a wide range of accessories, mainly: auxiliaries (1 OF, 1SD, 1 coil MN or MX), rotary handle (direct, front extended or side) and advanced alarming and fault differentiation module. b Magnetic GV4L: to be used with an overload relay or a drive b Thermal magnetic GV4P: electronic protection with wide range setting, dual class (10 & 20) b Multifunction motor protection GV4PEM: GV4P with adjustable advanced protections and possibility to have a side module SDx for alarming and fault differentiation.
New items
1610-21-10A, ETA

1610-21-10A, ETA

Blade Style Circuit Breaker 1610 Series Extremely compact Voltage rating of 32Vdc Improved overcurrent protection May be reset Typical tripping time2I N : 10 seconds Use with fuseholder RS stock no.419195 Typical life: 12 to 17 Vd.c. 30 ops; 24 Vd.c. 10 ops IEC Class M/TO Temp. range: -30°C → +60°C
New items
GV4PEM115N6, Schneider Electric

GV4PEM115N6, Schneider Electric

New TeSys GV4 is a compact and robust motor circuit breaker, up to 115 A with 100 kA breaking capacity, available with 3 kinds of protection: magnetic, electronic thermal magnetic, electronic thermal magnetic with advanced protections and alarming designed for demanding applications.TeSys GV4 is also equiped with patented Everlink power connections, and may be equiped with a wide range of accessories, mainly: auxiliaries (1 OF, 1SD, 1 coil MN or MX), rotary handle (direct, front extended or side) and advanced alarming and fault differentiation module. b Magnetic GV4L: to be used with an overload relay or a drive b Thermal magnetic GV4P: electronic protection with wide range setting, dual class (10 & 20) b Multifunction motor protection GV4PEM: GV4P with adjustable advanced protections and possibility to have a side module SDx for alarming and fault differentiation.
New items
4404.0005, Schurter

4404.0005, Schurter

T9 series thermal circuit breakers T9 single-pole, compact thermal circuit breakers. Trigger via a bimetallic element. Connection via Faston terminals. Reset button on the front panel. Snap-fitting installation. Rated voltage: 240 Vac- 24 // 32 Vdc Insulation resistance: > 100 MΩ Operating temperature: -5 °C → +60 °C Panel cut-out: 16 x 14 mm Approvals UL, CSA, IEC 60394 Thermal Magnetic Convertible All CBEs have blade terminals and have an insulation resistance greater than 100MΩ (MegaOhms).
New items
FC67207, Cliff Electronics

FC67207, Cliff Electronics

Cliff Electronics Circuit Protection Devices - Automatic Reset AN Series Cliff Electronics automatic reset AN series of circuit protection devices offer a comprehensive solution to a variety of circuit protection requirements. The AN series is available as a snap-in type, with PC mounting. With a range of values up to 12A, the AN series is designed to protect audio speaker systems, amplifiers and power supplies. High current accuracy Snap action Automatic reset Long life PBT resin enclosure Highly reliable
New items
4404.0007, Schurter

4404.0007, Schurter

T9 series thermal circuit breakers T9 single-pole, compact thermal circuit breakers. Trigger via a bimetallic element. Connection via Faston terminals. Reset button on the front panel. Snap-fitting installation. Rated voltage: 240 Vac- 24 // 32 Vdc Insulation resistance: > 100 MΩ Operating temperature: -5 °C → +60 °C Panel cut-out: 16 x 14 mm Approvals UL, CSA, IEC 60394 Thermal Magnetic Convertible All CBEs have blade terminals and have an insulation resistance greater than 100MΩ (MegaOhms).
New items
GV4L50B6, Schneider Electric

GV4L50B6, Schneider Electric

New TeSys GV4 is a compact and robust motor circuit breaker, up to 115 A with 100 kA breaking capacity, available with 3 kinds of protection: magnetic, electronic thermal magnetic, electronic thermal magnetic with advanced protections and alarming designed for demanding applications.TeSys GV4 is also equiped with patented Everlink power connections, and may be equiped with a wide range of accessories, mainly: auxiliaries (1 OF, 1SD, 1 coil MN or MX), rotary handle (direct, front extended or side) and advanced alarming and fault differentiation module. b Magnetic GV4L: to be used with an overload relay or a drive b Thermal magnetic GV4P: electronic protection with wide range setting, dual class (10 & 20) b Multifunction motor protection GV4PEM: GV4P with adjustable advanced protections and possibility to have a side module SDx for alarming and fault differentiation.
New items
GV4PEM12S6, Schneider Electric

GV4PEM12S6, Schneider Electric

New TeSys GV4 is a compact and robust motor circuit breaker, up to 115 A with 100 kA breaking capacity, available with 3 kinds of protection: magnetic, electronic thermal magnetic, electronic thermal magnetic with advanced protections and alarming designed for demanding applications.TeSys GV4 is also equiped with patented Everlink power connections, and may be equiped with a wide range of accessories, mainly: auxiliaries (1 OF, 1SD, 1 coil MN or MX), rotary handle (direct, front extended or side) and advanced alarming and fault differentiation module. b Magnetic GV4L: to be used with an overload relay or a drive b Thermal magnetic GV4P: electronic protection with wide range setting, dual class (10 & 20) b Multifunction motor protection GV4PEM: GV4P with adjustable advanced protections and possibility to have a side module SDx for alarming and fault differentiation.
New items
4400.0034, Schurter

4400.0034, Schurter

T11 series thermal circuit breakers Schurter T11 circuit breaker is a snap in 1 pole thermal circuit breaker that offers positively trip free release. The T11 is easy to install with snap in mount and quick connect terminals. Suitable for use in power tools, household equipment, power supply and chargers and industrial applications. Single-pole, compact T11 Series circuit breakers with positive free trigger. Trigger via a bimetallic element, largely insensitive to short start-up surge Snap fitting Rated voltage: 240 // 120 Vac - 24 // 32 Vdc Breaking capacity: 8 x In (240 Vac with In 60 A (240 Vac with In ≤ 6 A) Insulation resistance: > 100 MΩ (500 Vdc) Operating temperature: –5 °C → +60 °C Panel cutout: - snap fitting: 11.3 x 22.2 mm Approvals   UL, CSA and VDE Thermal Magnetic Convertible All CBEs have blade terminals and have an insulation resistance greater than 100MΩ (MegaOhms).
New items
GV3P18, Schneider Electric

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
FAQs
We offer free shipping for orders over £200 if delivery is in the UK. All other orders in the UK, shipping from £7.99 depending on the weight and measurement. Mainland Europe shipping charges start from £25. For all other countries shipping charges start from £50 for products like Thermal Breakers and all others.
You can email us directly at sales@enrgtech.co.uk or via our website for any queries regarding Thermal Breakers or any other product.
This depends on the Thermal Breakers individual product and information that can be found on our website.
Yes, we offer special discounts on orders above £200 for Thermal Breakers and all other products.
UK orders normally take between 2/3 working days. International orders normally take between 3/5 working days for all products including Thermal Breakers.
Yes. We keep updating our stock frequently and if a product like Thermal Breakers is not in stock then we will let you know.