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

35874 Products showing for Circuit Breakers

146 of 999+
Schneider Electric TeSys Thermal Circuit Breaker - GB2 2 Pole 277V ac Voltage Rating DIN Rail Mount, 6A Current Rating
  • RS Stock No. 312-3831
  • Mfr. Part No. GB2DB12
Each
TWD1,822.00(exc. GST)
ABB S802C MCB, 2P, 50A Curve B, 415V AC, 25 kA Breaking Capacity
  • RS Stock No. 140-519
  • Mfr. Part No. 2CCS882001R0505
Each
TWD11,133.00(exc. GST)
SENTRON Auxiliary Contact for use with 3VA Plug-in Units
  • RS Stock No. 263-571
  • Mfr. Part No. 3VA9977-0KP80
1 Kit
TWD1,838.00(exc. GST)
Siemens 5SM21 RCCB, 16A, 2 Pole, 10mA, Type A, 230V
  • RS Stock No. 328-413
  • Mfr. Part No. 5SM2121-6
Each
TWD5,441.00(exc. GST)
Hager NFN MCB, 2P, 0.5A Curve C, 240 → 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 144-4706
  • Mfr. Part No. NFN200
Each
TWD5,509.00(exc. GST)
Schneider Electric, ComPacT MCCB 3P 1kA, Breaking Capacity 31 kA, Fixed Mount
  • RS Stock No. 341-491
  • Mfr. Part No. C100H35AFM
Each
TWD497,126.00(exc. GST)
Better World
ABB System Pro M Compact S200 MCB, 3P, 50A Curve C, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 746-7784
  • Mfr. Part No. 2CDS253001R0504 S203-C50
Each
TWD2,694.00(exc. GST)
Schneider Electric, ComPacT MCCB 2P 630A, Fixed Mount
  • RS Stock No. 260-7824
  • Mfr. Part No. C1BN2TM630D
Each
TWD221,885.00(exc. GST)
ABB SMISSLINE TP MCB, 1P, 500mA Curve C, 240V AC
  • RS Stock No. 246-2502
  • Mfr. Part No. 2CCS571001R0984 S401M-C0.5
Each
TWD1,810.00(exc. GST)
Eaton xEffect RCCB, 16A, 2 Pole, 100mA, Type F, 240V ac
  • RS Stock No. 248-936
  • Mfr. Part No. 187389 FRCMM-16/2/01-S/F
Each
TWD12,938.00(exc. GST)
Better World
Schneider Electric Acti 9 iC60L MCB, 4P, 63A Curve B, 15 kA Breaking Capacity
  • RS Stock No. 219-9260
  • Mfr. Part No. A9F93463
Each
TWD26,063.00(exc. GST)
ABB System Pro M Compact S200 M UC MCB, 3P, 1A Curve C, 400V AC, 440V DC, 10 kA Breaking Capacity
  • RS Stock No. 200-183
  • Mfr. Part No. 2CDS273061R0014
Each
TWD16,016.00(exc. GST)
ABB S803N MCB, 3P, 50A Curve D, 690V AC, 36 kA Breaking Capacity
  • RS Stock No. 140-500
  • Mfr. Part No. 2CCS893001R0501
Each
TWD22,774.00(exc. GST)
Better World
Siemens SENTRON 3VA1 MCB, 4P, 25A
  • RS Stock No. 224-7837
  • Mfr. Part No. 3VA1125-5GF42-0AA0
Each
TWD22,387.00(exc. GST)
Better World
Siemens SENTRON 5SL4 MCB, 3P, 50A Curve D, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 209-6496
  • Mfr. Part No. 5SL4350-8
Each
TWD10,547.00(exc. GST)
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 16A, Breaking Capacity 7 kA
  • RS Stock No. 159-517
  • Mfr. Part No. 3VA1196-4ED36-0AA0
Each
TWD13,219.00(exc. GST)
Eaton IZMX/INX Electronic Circuit Breaker 1kA IZMX/INX, 4 channels , Fixed
  • RS Stock No. 132-910
  • Mfr. Part No. 183772 IZMX40H4-P10F-1
Each
TWD557,506.00(exc. GST)
ABB RCBO, 32A Current Rating, 3P Poles, Type C
  • RS Stock No. 237-5180
  • Mfr. Part No. 2CSR273101R1324
Each
TWD12,202.00(exc. GST)
Eaton xEffect - FRCmM RCCB, 80A, 2 Pole, 30mA, 240V ac
  • RS Stock No. 123-268
  • Mfr. Part No. 170386 FRCMM-80/2/003-G/A
Each
TWD18,136.00(exc. GST)
ABB Switch Disconnector Circuit Trip for use with Commanding Load
  • RS Stock No. 231-9590
  • Mfr. Part No. 2CDE282001R0100 E202/100r
1 Box of 1
TWD1,525.00(exc. GST)
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