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

39046 Products showing for Circuit Breakers

108 of 999+
Better World
Siemens SENTRON Electronic Circuit Breaker 25A 3VA2, 3 channels
  • RS stock no. 157-257
  • Mfr. Part No. 3VA2125-5HM32-0AA0
Each
R 16,845.82(exc. VAT)
Better World
ABB System Pro M Compact S200M MCB, 2P, 4A Curve C, 440V AC, 125V DC, 10 kA Breaking Capacity
  • RS stock no. 131-983
  • Mfr. Part No. 2CDS272001R0044 S202M-C4
Each
R 1,503.54(exc. VAT)
ABB F200 RCCB, 40A, 2 Pole, 30mA, Type A, 230/400V ac
  • RS stock no. 177-5052
  • Mfr. Part No. 2CSF202401R1400 F202 A-40/0,03 AP-R
Each
R 4,794.12(exc. VAT)
Siemens SENTRON Connection Unit for use with 3VA5 250, 3VA6 150/250
  • RS stock no. 269-7175
  • Mfr. Part No. 3VA9273-0QB00
Each (In a Pack of 3)
R 292.00(exc. VAT)
Eaton Eaton Moeller Enclosure for use with PKZM0
  • RS stock no. 272-2287
  • Mfr. Part No. 219657 CI-K2-PKZ0-GV
Each
R 538.48(exc. VAT)
Better World
Schneider Electric, PowerLogic, 200A, Energy Sensor, 3VA, Wireless
  • RS stock no. 256-4051
  • Mfr. Part No. A9MEM1590
Each
R 18,596.45(exc. VAT)
ABB MCCB 4P 63A, Breaking Capacity 85 kA
  • RS stock no. 192-0830
  • Mfr. Part No. 1SDA067847R1
Each
R 30,023.07(exc. VAT)
Eaton xEffect - FRCmM RCCB, 63A, 4 Pole, 300mA, 240/415V ac
  • RS stock no. 123-622
  • Mfr. Part No. 170449 FRCMM-63/4/03-S/A
Each
R 9,766.71(exc. VAT)
ABB TMAX XT1B MCB, 4P, 160A, 690V AC, 500V DC, 25 kA Breaking Capacity
  • RS stock no. 192-0889
  • Mfr. Part No. 1SDA066821R1
Each
R 12,251.47(exc. VAT)
Better World
ABB, XT4S MCCB 4P 63A, Fixed Mount
  • RS stock no. 236-6774
  • Mfr. Part No. 1SDA068497R1 XT4S 160 Ekip I 63A FF
Each
R 22,677.82(exc. VAT)
Better World
Schneider Electric Acti 9 IC60L MCB, 3P, 4A Curve K, 400V AC, 180V DC, 20 kA, 15 kA Breaking Capacity
  • RS stock no. 212-0145
  • Mfr. Part No. A9F95304
Each
R 10,749.24(exc. VAT)
Lovato P1RD Residual Current Circuit Breaker, 25A, 4 Pole, 300mA, Type AC, 230 V ac, 400 V ac
  • RS stock no. 277-5046
  • Mfr. Part No. P1RD4P25AC300
Each
R 2,726.35(exc. VAT)
Siemens, SENTRON MCCB Molded Case Circuit Breaker 1P 20A, Breaking Capacity 18 kA, Cable Mount, Panel Mount
  • RS stock no. 148-241
  • Mfr. Part No. 3VA5120-6ED11-1AA0
Each
R 3,703.44(exc. VAT)
Hager Electronic Earth Leakage Circuit Trip for use with MCCBs
  • RS stock no. 144-4930
  • Mfr. Part No. HBA161H
Each
R 30,574.55(exc. VAT)
Better World
Siemens, SENTRON MCCB 4P 100A, Breaking Capacity 150 kA, Fixed Mount
  • RS stock no. 270-3623
  • Mfr. Part No. 3VA2010-8KP42-0AA0
Each
R 31,555.83(exc. VAT)
Eaton xEffect RCCB, 25A, 4 Pole, 100mA, Type F, 240V ac
  • RS stock no. 248-941
  • Mfr. Part No. 187414 FRCMM-25/4/01-G/F
Each
R 5,719.89(exc. VAT)
Siemens SENTRON Busbar
  • RS stock no. 203-3279
  • Mfr. Part No. 8US1921-2BA00
Each (In a Pack of 100)
R 58.497(exc. VAT)
Better World
Schneider Electric Acti 9 iC60H MCB, 4P, 6A Curve C, 440V AC, 250V DC, 10 kA Breaking Capacity
  • RS stock no. 776-3326
  • Mfr. Part No. A9F87406
Each
R 1,958.10(exc. VAT)
Eaton Adapter
  • RS stock no. 121-503
  • Mfr. Part No. 149454 ASNH100BABB100
Each
R 1,134.44(exc. VAT)
Siemens, SENTRON MCCB 3P 150A, Breaking Capacity 25 kA, Fixed Mount
  • RS stock no. 147-436
  • Mfr. Part No. 3VA5215-6ED31-1AA0
Each
R 20,502.24(exc. VAT)
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