brands

attributes.Number_of_Poles

attributes.Current_Rating

attributes.Series

attributes.Tripping_Characteristics

attributes.Rated_AC_Voltage

attributes.Breaking_Capacity

attributes.Rated_DC_Voltage

attributes.Range

attributes.Circuit_Breaker_Type

attributes.Mounting_Style

attributes.Length

attributes.Width

attributes.Depth

attributes.Model_Number

attributes.Better_World_Claim

attributes.Better_World_Product

attributes.Better_World_Verification

Eaton xEffect MCB, 1+N, 6A Curve B

Eaton MEMShield MCB, 1P, 50A Curve C, 230V AC, 48V DC, 10 kA Breaking Capacity

Eaton xEffect xEffect - FAZ-T MCB, 2P, 40A Curve C, 440V AC, 60V DC, 15 kA Breaking Capacity

Eaton xEffect MCB, 3+N, 500mA Curve C

Eaton xEffect MCB, 1P, 4A Curve D

Eaton xEffect MCB, 1P, 13A Curve B, 230 → 400V AC, 6 kA Breaking Capacity

Eaton xEffect MCB, 4P, 1.5A Curve B

Eaton xEffect MCB, 3+N, 3.5A Curve B

Eaton xEffect MCB, 4P, 2A Curve D

Eaton xEffect FAZ MCB, 1P, 20A Curve B, 240V AC, 60V DC, 15 kA Breaking Capacity


MCBs, or Miniature Circuit Breakers, are electrical devices designed to protect an electrical circuit from damage caused by overcurrent. They serve as a crucial component in the electrical distribution system of buildings, homes, and industrial facilities. You can learn more in our [MCB guide](https://uk.rs-online.com/web/content/discovery/ideas-and-advice/mcb-guide).

RS offer a comprehensive selection of high-quality Miniature Circuit Breakers from industry-leading brands including ABB, Siemens, Schneider Electric, Eaton, Rockwell Automation and Lovato.

### How does a miniature circuit breaker work?

MCBs automatically disconnect the electrical circuit when they detect a current exceeding the rated capacity of the circuit. This action helps prevent overheating and potential damage to the wiring, appliances, or other connected devices.

### What are the different types of circuit breakers?

MCBs come in different types, including Type B, C, and D, each designed to trip at different levels of overcurrent. The choice of MCB type depends on the specific characteristics of the electrical load it is protecting.

- **Type B**: General purpose, suitable for domestic installations. Trips between 3 and 5 times the load current.
- **Type C**: Designed for applications with higher inrush currents, such as motors and transformers. Trips between 5 and 10 times the full load current.
- **Type D**: Intended for circuits with significant inrush currents, like those associated with high-powered equipment. Trips between 10 and 20 times the full load current.

### What is the tripping mechanism of an MCB?

MCBs typically use thermal and magnetic tripping mechanisms. The thermal component responds to prolonged overcurrent conditions, while the magnetic component reacts to short-circuit currents.

### Where are MCBs installed?

MCBs are installed in distribution boards or consumer units and are often used in conjunction with residual current devices (RCDs) for enhanced electrical safety.

### Can I reset an MCB?

After tripping due to overcurrent, MCBs can usually be reset manually. However, it is crucial to investigate and address the cause of the overcurrent before resetting to avoid potential hazards.

MCBs play a vital role in electrical safety by preventing electrical fires and protecting equipment from damage caused by excessive current. They are an integral part of modern electrical installations, contributing to the overall reliability and safety of electrical systems.



MCBs

Circuit Breakers

Fuses & Circuit Breakers

1228569899

1370019343

1492797549

1805640584

1872595187

1950438482

2099506070

2911534392

2972144945

3089561311

3702440375

3893962904

3999174723

4084450865

482906937

595160564

607105215

630592386

1337321341

1713511683

1953764780

2212326362

245755136

2694081498

2854130884

3031041232

3479376779

3537785963

3606191116

3676807775

3694170890

3696367266

3871454867

3980878867

4239710393

730636658

Development Tools & Single Board Computers

Raspberry Pi, Arduino, ROCK, STEM Education & Development Tools

Electronic Components, Power & Connectors

Engineering Materials & Industrial Hardware

Pneumatic Counters, Logic Controllers & Timers

Electronics Cleaners & Protective Coatings

ABB Busbar for use with Miniature Circuit Breakers

Siemens Sentron Remote Controlled Mechanism for use with Miniature Circuit Breakers

ABB Cable for use with Miniature Circuit Breakers

Schneider Electric Acti 9 Spacer for use with C120/C60 Miniature Circuit Breakers, Clario/Librio/ProDis Circuit

Eaton MCBs

2210 Products showing for Eaton MCBs

Popular Searches

Related links