Products Found: 10639

Showing Results For: MCBs

MCBs

MCBs (Miniature Circuit Breakers) are essential electrical safety devices that protect against overcurrent and short circuits by tripping the circuit upon detection of a fault. These devices are typically installed in distribution boards for enhanced, automated electrical safety in residential, commercial, and industrial settings. An MCB comprises several key components, including a trip mechanism, a bimetallic strip or electronic sensor, and a toggle switch that work together to detect faults and trip the circuit breaker to disconnect the power supply. These electrical switches come in various sizes and current ratings to suit different applications and electrical loads. Additionally, MCBs can be manually reset once the fault condition is cleared by toggling the switch to its original position.

Advantages of Using MCBs Include

  • Compact Size: MCBs are relatively small compared to traditional fuses, making them ideal for installations with limited space.
  • Quick Response: MCBs rapidly respond to faults, reducing damage to electrical equipment and minimising downtime. 
  • Easy Reset: Unlike fuses, MCBs can be easily reset after tripping, making them more convenient for users.

Popular Types of MCBs

MCBs are categorised based on their tripping characteristics and include:

  • Type B MCBs – These circuit breakers can trip between 3 to 5 times the full load current and are suitable for residential applications.
  • Type C MCBs – They trip between 5 to 10 times the full load current and are ideal for commercial and industrial use.
  • Type D MCBs – These components trip between 10 to 20 times the full load current. They are used for specialised industrial applications with high inrush currents.

Where Can I Use MCBs?

MCBs are versatile safety components that are widely used in almost any electrical installation that requires protection from overcurrent and short circuit conditions. Some typical environments where MCBs can be used include:

  • Residential Buildings
  • Commercial Buildings
  • Industrial Facilities
  • Power Distribution Panels
  • Control Panels
  • Renewable Energy Systems
  • Automotive Applications
  • Marine and Offshore Applications.

FILTERS
Filters
Showing
1 -
Enrgtech #
Manufacturer Part No
Name
Availability
Price
Rating
Siemens
Rohs Verified
5SY4210-8, Siemens
5 In Stock
Check Stock & Lead Times Packaging Options
1 +
£ 54.53
Allen Bradley
Rohs Verified
1492-SPM1B100, Allen Bradley
9 In Stock
Check Stock & Lead Times Packaging Options
1 +
£ 12.55
Allen Bradley
Rohs Verified
1492-SPM1D320, Allen Bradley
1 In Stock
Check Stock & Lead Times Packaging Options
1 +
£ 16.39
Allen Bradley
Rohs Verified
1492-SPM2C010, Allen Bradley
9 In Stock
Check Stock & Lead Times Packaging Options
1 +
£ 33.39
Allen Bradley
Rohs Verified
1492-SPM2C040, Allen Bradley
10 In Stock
Check Stock & Lead Times Packaging Options
1 +
£ 33.39
Allen Bradley
Rohs Verified
1492-SPM2D630, Allen Bradley
Pre Order
Check Stock & Lead Times Packaging Options
1 +
£ 83.65
Allen Bradley
Rohs Verified
1492-SPM3D100, Allen Bradley
7 In Stock
Check Stock & Lead Times Packaging Options
1 +
£ 47.35
Schneider Electric
Rohs Verified
A9F53120, Schneider Electric
27 In Stock
Check Stock & Lead Times Packaging Options
1 +
£ 22.24
10 +
£ 21.60
15 +
£ 21.05
Rohs Verified
S403M-C10, ABB
Pre Order
Check Stock & Lead Times Packaging Options
1 +
£ 106.77
5 +
£ 103.79
10 +
£ 100.99
Schneider Electric
Rohs Verified
A9F53240, Schneider Electric
1 In Stock
Check Stock & Lead Times Packaging Options
1 +
£ 74.13
10 +
£ 72.06
15 +
£ 70.11
Schneider Electric
Rohs Verified
A9F53440, Schneider Electric
1 In Stock
Check Stock & Lead Times Packaging Options
1 +
£ 188.86
Schneider Electric
Rohs Verified
A9F55116, Schneider Electric
17 In Stock
Check Stock & Lead Times Packaging Options
1 +
£ 23.15
10 +
£ 21.77
15 +
£ 20.85
Schneider Electric
Rohs Verified
A9F55150, Schneider Electric
Pre Order
Check Stock & Lead Times Packaging Options
1 +
£ 30.11
10 +
£ 29.26
15 +
£ 28.48
Schneider Electric
Rohs Verified
A9F55201, Schneider Electric
2 In Stock
Check Stock & Lead Times Packaging Options
1 +
£ 98.08
10 +
£ 95.36
15 +
£ 92.78
Schneider Electric
Rohs Verified
A9F55220, Schneider Electric
5 In Stock
Check Stock & Lead Times Packaging Options
1 +
£ 70.59
10 +
£ 68.65
15 +
£ 66.79
Schneider Electric
Rohs Verified
A9F55232, Schneider Electric
13 In Stock
Check Stock & Lead Times Packaging Options
1 +
£ 70.59
10 +
£ 68.65
15 +
£ 66.79
Schneider Electric
Rohs Verified
A9F55340, Schneider Electric
19 In Stock
Check Stock & Lead Times Packaging Options
1 +
£ 110.10
10 +
£ 103.51
15 +
£ 99.10
Legrand
Rohs Verified
4 076 54, Legrand
7 In Stock
Check Stock & Lead Times Packaging Options
1 +
£ 36.20
10 +
£ 34.36
20 +
£ 33.21
Legrand
Rohs Verified
4 076 95, Legrand
2 In Stock
Check Stock & Lead Times Packaging Options
1 +
£ 101.93
10 +
£ 96.75
20 +
£ 93.55
Legrand
Rohs Verified
4 077 78, Legrand
1 In Stock
Check Stock & Lead Times Packaging Options
1 +
£ 129.56
10 +
£ 122.98
20 +
£ 118.87
Rohs Verified
2CCS553001R0635 - S403EB63, ABB
Pre Order
Check Stock & Lead Times Packaging Options
1 +
£ 127.86
5 +
£ 121.47
10 +
£ 115.08
Rohs Verified
2CCS573001R0984 - S403MB0.5, ABB
Pre Order
Check Stock & Lead Times Packaging Options
1 +
£ 126.75
5 +
£ 121.96
10 +
£ 118.65
Siemens
Rohs Verified
5SL6515-7, Siemens
Pre Order
Check Stock & Lead Times Packaging Options
1 +
£ 46.23
Siemens
Rohs Verified
5SL6606-7, Siemens
Pre Order
Check Stock & Lead Times Packaging Options
1 +
£ 102.68
Siemens
Rohs Verified
5SY4405-7, Siemens
Pre Order
Check Stock & Lead Times Packaging Options
1 +
£ 135.32
Showing
1 -

New Items
New items
ALB161, Eaton

ALB161, Eaton

6kA MCBs Complies with BS EN 60898 Accept cable up to 25mm² Thermal/magnetic operation Positive contact indication (red-on, green-off) 1 pole Memera Incoming & Outgoing Devices & Accessories MEM 250V DIN rail mount RCD’s and MCB’s etc, for use as spares and replacements in Memera consumer units.
New items
GHS2810001R0824, ABB

GHS2810001R0824, ABB

Type C Single Pole 6kA Type C characteristic offers short circuit response of 5-10 x normal rated current, making it ideal for circuits with higher inrush currents such as motor control and fluorescent lighting installations in industrial buildings where nuisance tripping might occur if a faster type was used. DIN rail mounting Complies with BS EN 60898 Operating temperature range of -25°C to +55°C Standard 17.5mm width Max. operating voltage: 440Vac, 60Vdc Standards BS EN 60898 ABB Compact Home
New items
S202UDC-K1.6, ABB

S202UDC-K1.6, ABB

Type K Double Pole 14kA - System Pro M Compact The ABB S200 Series of MCB offer a compact solution for protection requirements. These miniature circuit breakers are current limiting; DIN rail mounted and can offer a good equivalent to fused systems. Type K characteristics have been specifically designed for the protection of motor control circuits and items used within them. It has a very sensitive thermal curve, combined with a magnetic setting of 8 times the normal input current, which is high enough to avoid in-rush nuisance tripping, but provides good protection against over current conditions. DIN rail mounting Complies with BS EN 60898 Finger Safe Terminals ABB System Pro M Single & Double Pole MCB's Note The Classic & System pro M product cannot be intermixed and do not share common accessories. System pro M products can only be fitted to new style Protecta distribution boards,see typically stock no. 539-1553.
New items
S201-K5, ABB

S201-K5, ABB

Type K Single Pole 6kA - System Pro M Compact The ABB S200 Series of MCB offer a compact solution for protection requirements. These miniature circuit breakers are current limiting; DIN rail mounted and can offer a good equivalent to fused systems. Type K characteristics have been specifically designed for the protection of motor control circuits and items used within them. It has a very sensitive thermal curve, combined with a magnetic setting of 8 times the normal input current, which is high enough to avoid in-rush nuisance tripping, but provides good protection against over current conditions. DIN rail mounting Complies with BS EN 60898 Finger Safe Terminals ABB System Pro M Single & Double Pole MCB's Note The Classic & System pro M product cannot be intermixed and do not share common accessories. System pro M products can only be fitted to new style Protecta distribution boards,see typically stock no. 539-1553.
New items
MG24115, Schneider Electric

MG24115, Schneider Electric

Schneider Electric Supplementary Protectors Merlin Gerin – MCBs Miniature Circuit Breakers; Contact Position indicated by switch levers
New items
QOU240, Schneider Electric

QOU240, Schneider Electric

Square D QOU MCBs Range of low and high Ampere QOU MCBs ideal for OEM applications Flush, surface or DIN rail mount Reversible line and load lugs for low Ampere range Non reversible line and load lugs for High Ampere range Square D For use with Qwikline I consumer units and can be retrofitted in to existing systems,Type B characteristic offers instantaneous short circuit response level of 3-5 x normal rated current, making it suitable for circuits with moderate inrush currents such as filament lamps, heating loads and most domestic/small building protection applications.,Type C characteristic offers short circuit response of 5-10 x normal rated current, making it ideal for circuits with higher inrush currents such as motor control and fluorescent lighting installations in industrial buildings where nuisance tripping might occur if a faster type was used
New items
2CDS253001R0065, ABB

2CDS253001R0065, ABB

Type B Triple Pole 6kA - System Pro M Compact Automatic circuit breaker, b-characteristic One, two, three and four pole versions available Safe clamps according to DIN 50,274 (VDE 0660, part of 514) Connection of single or multiple wires with different cross sections, possible Range of application: Lamps, heater loads, households and small industrial units Universal signal contact/auxiliary switch (1- Change Over Switch) under Stock No. 488-6448 separately available Release characteristic: B (3 to 5 times the nominal current) Operating current: 6 - 40A Operating Voltage: 1-pole: 230VAC multipolar: 400VAC Frequency: 50/60Hz Capacity: 6kA Cross section for connection: 0.75 - 25mm 2 Enclosure: IP20 Equipment depth: 68mm Ambient temperature: -25°C to +55°C
New items
2CDS271001R0505, ABB

2CDS271001R0505, ABB

Type B Single Pole 10kA - System pro M Compact Type B characteristic offers instantaneous short circuit response level of 3-5 x normal rated current, making it suitable for circuits with moderate inrush currents such as filament lamps, heating loads and most domestic/small building protection applications. DIN rail mounting Complies with BS EN 60898 Operating temperature range of -25°C to +55°C Standard 17.5mm width Max. operating voltage: 440Vac, 60Vdc Note The Classic & System pro M product cannot be intermixed and do not share common accessories. System pro M products can only be fitted to new style Protecta distribution boards,see typically stock no. 539-1553. Standards BS EN 60898 ABB System Pro M Single & Double Pole MCB's Note The Classic & System pro M product cannot be intermixed and do not share common accessories. System pro M products can only be fitted to new style Protecta distribution boards,see typically stock no. 539-1553.
New items
FAZ-C13/3, Eaton

FAZ-C13/3, Eaton

Eaton FAZ Series Circuit Breakers The FAZ series by Eaton offers a wide range of quality, highly reliable and safe circuit breakers. The FAZ series is available with B, C, D and Z characteristics in accordance with UL 1077, CSA C22.2 No.235 and IEC 60947-2. Rated currents up to 63A Current limiting design Reliable and safe operation
New items
5SY71157, Siemens

5SY71157, Siemens

Automatic cut-out, 5SY7 Series, 15 kA, C characteristic Automatic Cut-Out, 1-Pole and 3-Pole DIN rail assembly For use in industry and in the functional sector Voltage rating: 230 V / 400 VAC 250 V / 440 VAC AC, 60 VDC / pole Suppression rating: 15 kA Installation depth: 70 mm Cross-reference to manufacturer's part number Stock no. Manuf. Part no. Stock no. Manuf. Part no. 622-0238 5SY7 114-7 622-0367 5SY7 314-7 622-0187 5SY7 105-7 622-0351 5SY7 305-7 622-0143 5SY7 101-7 622-0317 5SY7 301-7 622-0244 5SY7 115-7 622-0373 5SY7 315-7 622-0159 5SY7 102-7 622-0323 5SY7 302-7 622-0165 5SY7 103-7 622-0339 5SY7 303-7 622-0171 5SY7 104-7 622-0323 5SY7 304-7 622-0200 5SY7 106-7 622-0395 5SY7 316-7 622-0222 5SY7 110-7 622-0418 5SY7 320-7 622-0266 5SY7 116-7 622-0430 5SY7 325-7 622-0288 5SY7 120-7 622-0452 5SY7 332-7 622-0301 5SY7 132-7 Approvals   DIN VDE 0641 Part 11, UL 1077, CSA 22.2 Standards   EN 60898 / IEC 60898-2
New items
28621, Merlin Gerin

28621, Merlin Gerin

NG160 circuit breakers 3- and 4-pole circuit breakers specially designed to operate upstream of Multi 9 modular equipment. Enhanced breaking capacity of downstream devices up to 25 kA by descent. Rated In current 40 °C 160 A Ue rated operating voltage 500 Vac, 50 / 60 Hz Number of cycles (O - C) 10000 Ir thermal protection fixed threshold 1 In Dimensions (H x L x D) in mm 120 x 90 x 82.5 (3-pole) 120 x 120 x 82.5 (4-pole) Standards IEC 60947-2
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 MCBs and all others.
You can email us directly at sales@enrgtech.co.uk or via our website for any queries regarding MCBs or any other product.
This depends on the MCBs individual product and information that can be found on our website.
Yes, we offer special discounts on orders above £200 for MCBs 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 MCBs.
Yes. We keep updating our stock frequently and if a product like MCBs is not in stock then we will let you know.