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

39049 Products showing for Circuit Breakers

94 of 999+
In Stock
Better World
Schneider Electric TeSys Thermal Circuit Breaker - TeSyS GV 3 Pole 690V ac Voltage Rating, 115A Current Rating
  • RS stock no. 175-1496
  • Mfr. Part No. GV4P115B
Each
R 11,295.43(exc. VAT)
In Stock
ABB FH200 RCCB, 40A, 2 Pole, 30mA, Type A, 230V
  • RS stock no. 186-3459
  • Mfr. Part No. 2CSF202102R1400
Each
R 1,385.52(exc. VAT)
Temporarily out of stock
Eaton RCCB, 40A, 4 Pole, 300mA, Type A, 230 V ac, 400 V ac
  • RS stock no. 227-0732
  • Mfr. Part No. 267459 PFGM-40/4/03-A
Each
R 2,493.99(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 20A, Breaking Capacity 15 kA, Fixed Mount
  • RS stock no. 258-294
  • Mfr. Part No. 281281 NZMH2-A20
Each
R 11,083.15(exc. VAT)
Temporarily out of stock
Lovato ModuLo P1MB MCB, 2P, 50A Curve B, 230V AC, 80V DC, 10 kA Breaking Capacity
  • RS stock no. 825-5699
  • Mfr. Part No. P1MB2PB50
Each
R 1,215.57(exc. VAT)
Temporarily out of stock
Hager NGT MCB, 3P, 40A, 415V AC, 10 kA Breaking Capacity
  • RS stock no. 144-4790
  • Mfr. Part No. NGT340
Each
R 4,565.21(exc. VAT)
In Stock
Siemens SENTRON 5SJ4 MCB, 1P, 3A Curve C, 14 kA Breaking Capacity
  • RS stock no. 202-7058
  • Mfr. Part No. 5SJ4103-7HG41
Each
R 1,592.19(exc. VAT)
In Stock
Eaton xEffect MCB, 1+N, 1.5A Curve D
  • RS stock no. 230-0991
  • Mfr. Part No. 177519 FAZ6-D1,5/1N
Each
R 1,578.95(exc. VAT)
In Stock
Schneider Electric Vigi C120 MCB, 4P, 125A, Type A-SI
  • RS stock no. 248-3689
  • Mfr. Part No. A9N18598
Each
R 14,439.61(exc. VAT)
Temporarily out of stock
Allen Bradley 140G for use with Circuit Breaker
  • RS stock no. 261-2919
  • Mfr. Part No. 140G-K-SNJ
Each
R 3,397.12(exc. VAT)
In Stock
Eaton RCCB, 40A, 4 Pole, 300mA, Type B, 230 V ac, 400 V ac
  • RS stock no. 203-9040
  • Mfr. Part No. 300300 PXF-40/4/03-B
Each
R 12,971.49(exc. VAT)
In Stock
Better World
Schneider Electric RCBO, 10A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Acti 9 Range
  • RS stock no. 790-9285
  • Mfr. Part No. A9D11810
Each
R 3,638.21(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 63A, Breaking Capacity 85 kA, Fixed Mount
  • RS stock no. 270-3841
  • Mfr. Part No. 3VA2063-6HM42-0AA0
Each
R 21,444.48(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric, Masterpact MCCB 4P 3.2kA, Fixed Mount
  • RS stock no. 248-3813
  • Mfr. Part No. LV848319
Each
R 693,361.78(exc. VAT)
Temporarily out of stock
Eaton xE?ect - FRCdM RCCB, 40A, 4 Pole, 30mA, 240/415V ac
  • RS stock no. 120-916
  • Mfr. Part No. 167881 FRCDM-40/4/003-G/B+
Each
R 19,622.46(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON 5SL6 MCB, 3+N, 13A Curve C, 400V AC, 72V DC
  • RS stock no. 213-1060
  • Mfr. Part No. 5SL6613-7
Each
R 2,774.57(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 80A, Breaking Capacity 36 kA, DIN Rail Mount
  • RS stock no. 271-9622
  • Mfr. Part No. 3VA10804ED420AA0
Each
R 5,741.59(exc. VAT)
In Stock
Eaton xEffect MCB, 2P, 63A Curve C, 230 → 400V AC, 6 kA Breaking Capacity
  • RS stock no. 769-4728
  • Mfr. Part No. 239109 FAZ6-C63/2
Each
R 1,792.48(exc. VAT)
Last RS stock
Schneider Electric, NSX Range MCCB 3P 100A, Breaking Capacity 90 kA, Fixed Mount
  • RS stock no. 849-4153
  • Mfr. Part No. LV429841
Each
R 5,534.74(exc. VAT)
Temporarily out of stock
Better World
ABB, XT2N MCCB 4P 25A, Fixed Mount
  • RS stock no. 236-7460
  • Mfr. Part No. 1SDA067729R1 XT2N 160 TMG 25A FF
Each
R 8,091.82(exc. VAT)
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