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

143 of 999+
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 150A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 268-549
  • Mfr. Part No. 3VA6115-6KL31-0AA0
Each
Kr. 27 383,93(exc. VAT)
In Stock
Eaton PFIM RCD, 63A, 4 Pole, 30mA, Type AC, 230V ac
  • RS Stock No. 922-8639
  • Mfr. Part No. 235414 PFIM-63/4/003-MW
Each
Kr. 2 561,03(exc. VAT)
In Stock
Better World
ABB System Pro M Compact S200M MCB, 2P, 8A Curve D
  • RS Stock No. 225-6011
  • Mfr. Part No. 2CDS272001R0081 S202M-D8
Each
Kr. 870,05(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 iC60L MCB, 2P, 6A, Type Z, 15 kA Breaking Capacity
  • RS Stock No. 219-9241
  • Mfr. Part No. A9F92206
Each
Kr. 1 679,83(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 2.4A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 259-639
  • Mfr. Part No. 269473 NZMB2-S2,4-CNA
Each
Kr. 5 994,56(exc. VAT)
In Stock
ABB SMISSLINE TP S400M MCB, 3P, 25A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 177-030
  • Mfr. Part No. 2CCS573001R0254 S403M-C25
Each
Kr. 1 819,82(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 400A, Breaking Capacity 30 kA, Fixed Mount
  • RS Stock No. 229-455
  • Mfr. Part No. 109670 NZMN3-A400
Each
Kr. 22 182,16(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 800A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 249-992
  • Mfr. Part No. 3VA6580-6HN46-2AA0
Each
Kr. 98 096,86(exc. VAT)
In Stock
Eaton Eaton Moeller Auxiliary Contact for use with Motor Protective Circuit Breaker
  • RS Stock No. 272-2343
  • Mfr. Part No. 278495 VHI20-PKZ01
Each
Kr. 216,07(exc. VAT)
In Stock
Schneider Electric Acti9 SE10 MCB Mini Circuit Breaker, 3P, 32A Curve D, 415V AC, 10000 A Breaking Capacity
  • RS Stock No. 339-313
  • Mfr. Part No. SE10D332
Each
Kr. 1 325,96(exc. VAT)
In Stock
ETA Thermal Circuit Breaker - 105 Single Pole 240V Voltage Rating Snap In, 10A Current Rating
  • RS Stock No. 728-8632
  • Mfr. Part No. 105-P10-10A
Each
Kr. 174,63(exc. VAT)
Temporarily out of stock
ETA Thermal Circuit Breaker - 104-PR Single Pole 240V Voltage Rating PCB Mount, 4A Current Rating
  • RS Stock No. 728-8610
  • Mfr. Part No. 104-PR-4A
Each
Kr. 183,82(exc. VAT)
In Stock
Better World
Siemens Sentron 5SY4 MCB, 1+N, 6A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 772-1414
  • Mfr. Part No. 5SY4506-7
Each
Kr. 829,61(exc. VAT)
Temporarily out of stock
Eaton xEffect MCB, 3P, 2A Curve B, 240 → 415V AC, 96V DC, 10 kA Breaking Capacity
  • RS Stock No. 922-7112
  • Mfr. Part No. 278835 FAZ-B2/3
Each
Kr. 1 340,31(exc. VAT)
Temporarily out of stock
Eaton RCBO, 16A Current Rating, 3+N Poles, 100mA Trip Sensitivity, Type C, xPole Range
  • RS Stock No. 232-170
  • Mfr. Part No. 120664 mRB6-16/3N/C/01-A
Each
Kr. 5 079,36(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON Wire Connector for use with 3VA2 100/160/250
  • RS Stock No. 210-9278
  • Mfr. Part No. 3VA9103-0JB11
Each
Kr. 354,72(exc. VAT)
Temporarily out of stock
ABB SACE Emax 2 Fixed Part for use with Circuit Breaker
  • RS Stock No. 231-9316
  • Mfr. Part No. 1SDA073910R1 E2.2 W FP Iu=2000 4p HR
Each
Kr. 27 896,94(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON 5SY5 MCB, 2P, 16A Curve C, 400V AC, 440V DC, 10 kA Breaking Capacity
  • RS Stock No. 209-6676
  • Mfr. Part No. 5SY5216-7
Each
Kr. 2 172,23(exc. VAT)
Temporarily out of stock
ABB ON-OFF Switch Circuit Trip
  • RS Stock No. 189-5646
  • Mfr. Part No. 703005
Each
Kr. 284,93(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 12A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 230-240
  • Mfr. Part No. 107655 NZMB2-S12-BT-CNA
Each
Kr. 6 692,40(exc. VAT)
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