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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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Name
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Legrand
Rohs Verified
409273, Legrand
43 In Stock
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1 +
£ 214.69
Legrand
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409215, Legrand
42 In Stock
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1 +
£ 169.43
Schurter
Rohs Verified
4430.3652, Schurter
70 In Stock
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1 +
£ 38.96
Legrand
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410753, Legrand
15 In Stock
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1 +
£ 295.70
Legrand
Rohs Verified
409508, Legrand
10 In Stock
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1 +
£ 879.96
Schurter
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4435.0189, Schurter
71 In Stock
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1 +
£ 16.73
Schurter
Rohs Verified
4400.0279, Schurter
69 In Stock
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1 +
£ 6.20
Legrand
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401013, Legrand
6 In Stock
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1 +
£ 538.96
Schurter
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4400.0050, Schurter
68 In Stock
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1 +
£ 6.20
Rohs Verified
118964 NZMN2-ME90-NA, Eaton
1 In Stock
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1 +
£ 1125.61
118966 NZMN2-ME200-NA, Eaton
60 In Stock
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1 +
£ 1946.30
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142424 NZMH2-ME90-BT-NA, Eaton
9 In Stock
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1 +
£ 1471.97
Rohs Verified
118968 NZMH2-ME140-NA, Eaton
62 In Stock
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£ 1902.38
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142421 NZMN2-ME90-BT-NA, Eaton
6 In Stock
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1 +
£ 1259.40
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142422 NZMN2-ME140-BT-NA, Eaton
7 In Stock
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1 +
£ 1491.30
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142423 NZMN2-ME200-BT-NA, Eaton
8 In Stock
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£ 2015.61
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142426 NZMH2-ME200-BT-NA, Eaton
11 In Stock
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£ 2521.64
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118965 NZMN2-ME140-NA, Eaton
59 In Stock
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£ 1472.85
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118967 NZMH2-ME90-NA, Eaton
1 In Stock
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£ 1325.46
118969 NZMH2-ME200-NA, Eaton
63 In Stock
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£ 2454.02
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142425 NZMH2-ME140-BT-NA, Eaton
10 In Stock
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1 +
£ 1949.81
Schneider Electric
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GV2ME016, Schneider Electric
2 In Stock
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1 +
£ 143.82
Schneider Electric
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GV3P256, Schneider Electric
1 In Stock
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£ 418.48
Schneider Electric
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GV2ME046, Schneider Electric
1 In Stock
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£ 114.46
Schneider Electric
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GV2ME166, Schneider Electric
89 In Stock
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£ 133.45
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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
142421, Eaton

142421, 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 90 A at 480 V 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
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
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
2Z30UM, Altech

2Z30UM, Altech

Altech V-EA Series DIN Rail Thermal Magnetic Circuit Breakers are found in most distribution boards. The thermal portion provides an "inverse time" response feature, which trips the circuit breaker sooner for larger overcurrent’s. The Altech V-EA series are primarily DIN Rail mounted and provide a compact solution to your protection requirements. All models are highly reliable and excellent quality. DIN Rail Mounted 17.5mm width per pole Thermal Magnetic 10kA Short Circuit Withstand Capacity Thermal Magnetic Convertible All CBEs have blade terminals and have an insulation resistance greater than 100MΩ (MegaOhms).
New items
1492-GH020, Rockwell Automation

1492-GH020, Rockwell Automation

The Rockwell Automation 1492-GH High Density Supplemental Circuit Breaker (Push to Set), with 2.0 Amp Rating. These high-density miniature circuit breakers are thermal-magnetic type supplementary overcurrent protective devices. Suitable for AC and DC applications. Includes low current ratings and rated currents for precise circuit requirements
New items
106-P10-000040-1A, ETA

106-P10-000040-1A, ETA

106-P10 Series Thermal Circuit Breaker Miniaturised single pole thermal circuit breaker with push-to-reset Trip-free, snap action mechanism Single hole Threadneck panel mounting with hex and knurled nut, and Blade terminals Approved to CBE standard EN 60934 (IEC 60934) Typical applications in motors, transformers, solenoids, printed circuit boards, hand-held machines and appliances, marine applications, etc. Approvals UL; CSA; VDE; SEV and NEMKO. Approvals UL; CSA; VDE; SEV; NEMKO
New items
1610-21-15A, ETA

1610-21-15A, 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
1423674-8, TE Connectivity

1423674-8, TE Connectivity

W54-XB1A4A10-15=CKTBKR THERM P
New items
2EU05, Altech

2EU05, Altech

Altech V-EA Series DIN Rail Thermal Magnetic Circuit Breakers are found in most distribution boards. The thermal portion provides an "inverse time" response feature, which trips the circuit breaker sooner for larger overcurrent’s. The Altech V-EA series are primarily DIN Rail mounted and provide a compact solution to your protection requirements. All models are highly reliable and excellent quality. DIN Rail Mounted 17.5mm width per pole Thermal Magnetic 10kA Short Circuit Withstand Capacity Thermal Magnetic Convertible All CBEs have blade terminals and have an insulation resistance greater than 100MΩ (MegaOhms).
New items
3130-F110-P7T1-W19QY7-10A, ETA

3130-F110-P7T1-W19QY7-10A, ETA

3130 Series Thermal Circuit Breaker Rocker switch and thermal circuit breaker (CBE) combined Trip-free mechanism Snap-in panel mounting Panel thickness 1 to 2.5 mm Blade terminals DIN 46244-C-Ms-S Overload protection on all poles (multi-pole) Typical life 30000 operations at nominal current rating Main applications for motors, white goods industries, portable hand tools and transformers IEC Classification S/TO Approvals UL; CSA; VDE (EN 60934). Approvals UL; CSA
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.