Circuit Breakers

Having an effective and well-designed circuit protection system in every building is vital. It not only protects machinery and equipment from costly damage or even worse an electrical fire, but good circuit protection also ensures people are safe too.

Here, at RS we stock an extensive range of high-quality products within our circuit breaker range. They include various types of protection devices as well as consumer units, distribution boards and accessories. Whether you are designing and building a new system or maintaining an old one we have everything you need, providing the perfect end-to-end solution.

What are the different types of circuit breakers?

RCBO Breakers

RCBO stands for Residual Current Circuit Breaker with Over Current protection. Installed in consumer units they protect from short circuits, overload current and residual current as they combine all the functions of an MCB and an RCCB.

RCCB Breakers

RCCB stands for Residual Current Circuit Breaker. They are designed to quickly disconnect any circuit as soon as current leaks to the earthing wire. RCCBs are also effective in protecting from electrocution or shock from direct contact.

MCB Breakers

MCB stands for Miniature Circuit Breaker. They are designed to protect an electric circuit from overcurrent only. They do not safeguard people from electric shock caused by earth leakage.

MCCB Breakers

MCCB stands for Moulded Case Circuit Breaker. They are another type of electrical protection device used in higher current rating applications where an MCB would not suffice. An MCCB protects against overload and short circuit faults. With its high breaking capacity and a wider range of current ratings, MCCBs are typically found in industrial systems rather than domestic systems.

Busbar Feed & Tap-Off Units
Busbar Feed & Tap-Off Units
Busbar Trunking
Busbar Trunking
Busbar Trunking Accessories
Busbar Trunking Accessories
Busbars
Busbars
Circuit Breaker Accessories
Circuit Breaker Accessories
Circuit Trips
Circuit Trips
Consumer Units
Consumer Units
Distribution Boards
Distribution Boards
Electronic Circuit Breakers
Electronic Circuit Breakers
Energy Monitoring Devices
Energy Monitoring Devices
MCBs
MCBs
MCCBs
MCCBs
RCBOs
RCBOs
RCCBs
RCCBs
RCDs
RCDs
Surge Protection Devices
Surge Protection Devices
Thermal Breakers
Thermal Breakers

39184 Products showing for Circuit Breakers

250 of 999+
In Stock
Eaton xEffect MCB, 3P, 50A Curve C, 240 → 415V AC, 10 kA Breaking Capacity
  • RS Stock No. 847-3406
  • Mfr. Part No. 278878 FAZ-C50/3
Each
€135.18(exc. VAT)
Temporarily out of stock
Eaton IZMX/INX Withdrawable Unit for use with INX40…3-…W, IZMX40…3-…W
  • RS Stock No. 132-338
  • Mfr. Part No. 183950 IZMX-CAS403-3200-SEC-1
Each
€4,929.00(exc. VAT)
Temporarily out of stock
ABB Front Terminal for use with S6 800, T6 800
  • RS Stock No. 250-4503
  • Mfr. Part No. 1SDA023383R1
Each
€79.94(exc. VAT)
Temporarily out of stock
Eaton Three Phase Surge Protector, 40kA, 1.6kV, DIN Rail Mount
  • RS Stock No. 120-853
  • Mfr. Part No. 167622 SPCT2-335-3+NPE
Each
€430.00(exc. VAT)
In Stock
ABB DDA 200 A RCD Switch, 40A, 3 Pole, 30mA, Type A, 230 → 400V
  • RS Stock No. 610-3874
  • Mfr. Part No. 2CSB203101R1400 - DDA203A-40/0,03
Each
€138.23(exc. VAT)
Temporarily out of stock
ABB Opening Solenoid for use with Tmax XT
  • RS Stock No. 237-6280
  • Mfr. Part No. 1SDA067209R1
Each
€662.02(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON 5SY MCB, 1P, 30A Curve C
  • RS Stock No. 232-2286
  • Mfr. Part No. 5SY4130-7
Each
€22.49(exc. VAT)
In Stock
Better World
Schneider Electric Multi 9 C60BP MCB, 1P, 1A Curve D, 10 kA Breaking Capacity
  • RS Stock No. 214-2086
  • Mfr. Part No. M9F43101
Each
€42.53(exc. VAT)
Temporarily out of stock
ABB S804S MCB, 4P, 6A Curve D, 690V AC, 50 kA Breaking Capacity
  • RS Stock No. 140-283
  • Mfr. Part No. 2CCS864001R0061
Each
€467.94(exc. VAT)
Temporarily out of stock
Eaton Circuit Trip Circuit Trip for use with IZMX
  • RS Stock No. 132-431
  • Mfr. Part No. 183987 IZMX-PXRV-TM-1
Each
€4,113.00(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 50A, Fixed Mount
  • RS Stock No. 260-7621
  • Mfr. Part No. C11H3TM050L
Each
€657.19(exc. VAT)
Temporarily out of stock
ABB RCBO, 40A Current Rating, 1P Poles, Type C
  • RS Stock No. 237-5228
  • Mfr. Part No. 2CSR275051R0404
Each
€166.88(exc. VAT)
Temporarily out of stock
ABB RCBO, 40A Current Rating, 1P Poles, Type B
  • RS Stock No. 237-5229
  • Mfr. Part No. 2CSR275051R0405
Each
€173.56(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 A9F9 MCB, 4P, 6A Curve B, 400V AC, 250V DC, 20 kA, 15 kA Breaking Capacity
  • RS Stock No. 211-2499
  • Mfr. Part No. A9F93406
Each
€355.92(exc. VAT)
Temporarily out of stock
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P 630A, Fixed Mount
  • RS Stock No. 231-9341
  • Mfr. Part No. 1SDA100425R1 XT5S 630 EkipDip LS/I 630
Each
€1,921.34(exc. VAT)
In Stock
RS PRO Thermal Circuit Breaker - Single Pole 250V ac Voltage Rating Plug In, 10A Current Rating
  • RS Stock No. 262-4265
1 Box of 2
€53.57(exc. VAT)
Temporarily out of stock
Allen Bradley, 140G MCCB 3P 125A, Module Frame Mount
  • RS Stock No. 261-2844
  • Mfr. Part No. 140G-G3C3-C63
Each
€512.76(exc. VAT)
Temporarily out of stock
Better World
Siemens SIRIUS Electronic Circuit Breaker 250mA 3RV2, 3 channels , DIN Rail Mount
  • RS Stock No. 160-094
  • Mfr. Part No. 3RV2311-0CC10
Each
€70.69(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S200 MCB, 3P, 10A, Type Z, 400V AC, 110V DC, 10 kA Breaking Capacity
  • RS Stock No. 200-931
  • Mfr. Part No. 2CDS253001R0428
Each
€140.14(exc. VAT)
Temporarily out of stock
Eaton Eaton xEffect SASY 60i Busbar, 690V
  • RS Stock No. 243-782
  • Mfr. Part No. 107066 BBS-3/FL
Each (In a Pack of 2)
€11.80(exc. VAT)
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