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

39047 Products showing for Circuit Breakers

1586 of 999+
Temporarily out of stock
Allen Bradley 1492-D2 1492-D MCB, 2P, 1A Curve C, 10 kA Breaking Capacity
  • RS stock no. 218-8547
  • Mfr. Part No. 1492-D2C010
Each
R 3,141.93(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S300P MCB, 1+N, 4A Curve D, 240V AC, 72V DC, 100 kA Breaking Capacity
  • RS stock no. 204-212
  • Mfr. Part No. 2CDS381103R0041
Each
R 2,140.05(exc. VAT)
Temporarily out of stock
SENTRON Wire Connector for use with 3VA53/54, 3VA63/64 Series
  • RS stock no. 263-818
  • Mfr. Part No. 3VA9374-0JJ24
1 Kit
R 4,643.18(exc. VAT)
Temporarily out of stock
Schneider Electric, PowerPact MCCB 2P 20A, Breaking Capacity 18 kA, Clip-On
  • RS stock no. 429-481
  • Mfr. Part No. BDF26020
Each
R 11,775.99(exc. VAT)
In Stock
ABB RCBO, 40A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, System Pro M Compact Range
  • RS stock no. 136-7810
  • Mfr. Part No. 2CSR255051R1404 DSE201 C40 AC30 - N Blue
Each
R 1,809.94(exc. VAT)
Temporarily out of stock
Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 160A, Breaking Capacity 5 kA, Fixed Mount
  • RS stock no. 256-078
  • Mfr. Part No. 265860 NZMN2-4-A160
Each
R 26,834.98(exc. VAT)
In Stock
Lovato P1RD Residual Current Circuit Breaker, 25A, 4 Pole, 30mA, Type AC, 230 V ac, 400 V ac
  • RS stock no. 277-5045
  • Mfr. Part No. P1RD4P25AC030
Each
R 4,084.67(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 150A, Breaking Capacity 100 kA, Fixed Mount
  • RS stock no. 268-627
  • Mfr. Part No. 3VA6115-7KM31-0AA0
Each
R 43,202.01(exc. VAT)
Temporarily out of stock
Eaton Distribution Parts Undervoltage Release for use with Accessory, Accessory For Miniature Circuit Breaker,
  • RS stock no. 253-491
  • Mfr. Part No. 248291 Z-USD/230
Each
R 1,069.98(exc. VAT)
Temporarily out of stock
Better World
ABB, XT2V MCCB 3P 100A, Fixed Mount
  • RS stock no. 236-6527
  • Mfr. Part No. 1SDA067989R1 XT2V 160 Ekip LSIG 100A FF
Each
R 39,073.02(exc. VAT)
In Stock
Osram Surge Protector, 15A, 20kV, Screw Mount Mount
  • RS stock no. 251-5285
  • Mfr. Part No. SPD-20-275-G2
Each
R 330.30(exc. VAT)
Temporarily out of stock
Legrand DX3 Circuit Breaker, 3P, 25A Curve D, 400V AC, 10 kA Breaking Capacity
  • RS stock no. 266-1332
  • Mfr. Part No. 408061
Each
R 5,422.61(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Long Rear Connection for use with Compact NSX, Easy Pact CVS
  • RS stock no. 211-2658
  • Mfr. Part No. LV432476
Each
R 3,634.19(exc. VAT)
Temporarily out of stock
ABB Enclosure
  • RS stock no. 237-3372
  • Mfr. Part No. 2CPX042908R9999 TMAX XT4 2R
Each
R 2,824.34(exc. VAT)
In Stock
Eaton PFIM RCD, 25A, 4 Pole, 30mA, Type AC, 400V ac
  • RS stock no. 922-8614
  • Mfr. Part No. 235406 PFIM-25/4/003-MW
Each
R 3,353.62(exc. VAT)
In Stock
Lovato ModuLo P1MB MCB, 3P, 16A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS stock no. 825-5848
  • Mfr. Part No. P1MB3PC16
Each
R 1,743.90(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 220A, Breaking Capacity 5 kA, Fixed Mount
  • RS stock no. 246-863
  • Mfr. Part No. 191633 NZMN2-MX220
Each
R 30,962.84(exc. VAT)
Temporarily out of stock
Allen Bradley 1492 1492-SPM MCB, 1P, 25A Curve C, 277V AC, 48V DC, 10 kA Breaking Capacity
  • RS stock no. 125-1462
  • Mfr. Part No. 1492-SPM1C250
Each
R 545.58(exc. VAT)
Temporarily out of stock
Schneider Electric Resi9 R9F2 MCB, 3P, 13A Curve B, 400V AC, 6 kA Breaking Capacity
  • RS stock no. 212-205
  • Mfr. Part No. R9F23313
Each
R 50,392.76(exc. VAT)
Temporarily out of stock
Schneider Electric ComPacT Plug for use with Compact NS
  • RS stock no. 429-205
  • Mfr. Part No. C33545
Each
R 1,952.70(exc. VAT)
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