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
Surge Protection Devices
Surge Protection Devices
Thermal Breakers
Thermal Breakers

38220 Products showing for Circuit Breakers

236 of 999+
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 1.6A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 259-641
  • Mfr. Part No. 269482 NZMH2-S1,6-CNA
Each
Kr. 6 692,40(exc. VAT)
Allen Bradley 1492 1492-SPM MCB Mini Circuit Breaker, 1P, 16A Curve B, 277V AC, 48V DC, 15 kA Breaking Capacity
  • RS Stock No. 125-1424
  • Mfr. Part No. 1492-SPM1B160
Each
Kr. 355,78(exc. VAT)
ABB, Tmax XT MCCB 4P 1.6kA, Fixed Mount
  • RS Stock No. 236-6881
  • Mfr. Part No. 1SDA101117R1 XT7S1600 EkipDip LS/I 4pFF
Each
Kr. 101 798,89(exc. VAT)
RS PRO Auxiliary Release Circuit Trip for use with MS32 & MSB32 Motor Protection Circuit Breakers
  • RS Stock No. 121-6863
Each
Kr. 129,03(exc. VAT)
Allen Bradley 140MT Auxiliary Contact for use with Motor Protection Circuit Breaker
  • RS Stock No. 273-2271
  • Mfr. Part No. 140MT-C-AFA10
Each
Kr. 140,83(exc. VAT)
Schneider Electric Resi9 R9F MCB, 1P, 20A Curve C
  • RS Stock No. 223-7573
  • Mfr. Part No. R9F37620
Each
Kr. 128,13(exc. VAT)
ABB SMISSLINE TP MCB, 2P, 16A Curve K, 240V AC
  • RS Stock No. 246-2543
  • Mfr. Part No. 2CCS571103R8467
Each
Kr. 946,31(exc. VAT)
ABB Cover for use with S200U, S200UP
  • RS Stock No. 250-4731
  • Mfr. Part No. 2CDL200489R0001
1 Box of 10
Kr. 166,38(exc. VAT)
Schneider Electric, ComPacT new generation Circuit breaker 4P 160A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 110-316
  • Mfr. Part No. C12B44V160B
Each
Kr. 21 629,84(exc. VAT)
ABB Tmax XT Trip Unit for use with Tmax XT
  • RS Stock No. 236-7307
  • Mfr. Part No. 1SDA067480R1 TMA 250-2500 XT4 4p
Each
Kr. 10 991,70(exc. VAT)
Better World
Siemens, SENTRON MCCB 3P 40A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 270-3807
  • Mfr. Part No. 3VA2040-8JP36-0AA0
Each
Kr. 20 104,66(exc. VAT)
WAGO Electronic Circuit Breaker 500mA 24V 787, 1 channels , DIN Rail
  • RS Stock No. 279-4125
  • Mfr. Part No. 787-2861/050-000
Each
Kr. 1 059,46(exc. VAT)
Eaton xEffect MCB, 4P, 6A Curve D, 230 → 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 769-4848
  • Mfr. Part No. 168088 FAZ6-D6/4
Each
Kr. 2 087,42(exc. VAT)
ABB MCCB Molded Case Circuit Breaker 3P 400A, Fixed Mount
  • RS Stock No. 250-4243
  • Mfr. Part No. 1SDA054542R1
Each
Kr. 42 958,10(exc. VAT)
Allen Bradley Bulletin 3 Phase Busbar, 600V ac, 17.8mm Pitch
  • RS Stock No. 218-8510
  • Mfr. Part No. 1492-A3B1
Each
Kr. 1 821,36(exc. VAT)
ABB System Pro M Compact S200 MCB, 2P, 25A, Type Z, 400V AC, 125V DC, 10 kA Breaking Capacity
  • RS Stock No. 204-260
  • Mfr. Part No. 2CDS252001R0518
Each
Kr. 829,14(exc. VAT)
Better World
Schneider Electric Multi 9 C60N MCB, 2P, 4A Curve C, 10 kA Breaking Capacity
  • RS Stock No. 214-2063
  • Mfr. Part No. M9F11204
Each
Kr. 1 127,76(exc. VAT)
ABB System Pro M Compact S200M MCB, 4P, 4A Curve D, 400V AC, 125V DC, 15 kA Breaking Capacity
  • RS Stock No. 201-241
  • Mfr. Part No. 2CDS274001R0041
Each
Kr. 2 728,69(exc. VAT)
Schneider Electric Acti9 1 Phase Distribution Board Enclosure, 34 Way
  • RS Stock No. 339-350
  • Mfr. Part No. SEA9BN4SXP
Each
Kr. 3 466,36(exc. VAT)
Better World
Siemens SENTRON 5SL4 MCB, 1P, 6A Curve B, 10 kA Breaking Capacity
  • RS Stock No. 202-7245
  • Mfr. Part No. 5SL4106-6
Each
Kr. 209,98(exc. VAT)
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