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

78 of 999+
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 1.6A, Breaking Capacity 150 kA, Fixed Mount
  • RS stock no. 259-641
  • Mfr. Part No. 269482 NZMH2-S1,6-CNA
Each
R 11,922.44(exc. VAT)
Siemens SENTRON Cover Frame for use with Motor Operator
  • RS stock no. 210-9355
  • Mfr. Part No. 3VA9257-0SB30
Each
R 535.28(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 160A, Breaking Capacity 4 kA, Fixed Mount
  • RS stock no. 256-763
  • Mfr. Part No. 271425 NZMC2-M160
Each
R 20,783.33(exc. VAT)
ABB RCBO, 16A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type B, System Pro M Compact Range
  • RS stock no. 136-7794
  • Mfr. Part No. 2CSR275051R1165 DSE201 M B16 AC30 - N Blue
Each
R 3,064.15(exc. VAT)
Schneider Electric, ComPact MCCB Molded Case Circuit Breaker 3P 220A, Fixed Mount
  • RS stock no. 221-1048
  • Mfr. Part No. LV433517
Each
R 49,644.49(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 80A, Breaking Capacity 18.5 kA, Plug In
  • RS stock no. 229-847
  • Mfr. Part No. 112722 NZMB1-M80-SVE
Each
R 10,267.31(exc. VAT)
Eaton xEffect MCB, 2P, 20A Curve C, 240 → 415V AC, 10 kA Breaking Capacity
  • RS stock no. 847-3311
  • Mfr. Part No. 102211 FAZ-C20/2-RT
Each
R 1,088.62(exc. VAT)
Better World
Siemens SENTRON 5SY8 MCB, 1P, 300mA Curve C, 400V AC, 72V DC, 5 kA Breaking Capacity
  • RS stock no. 213-1107
  • Mfr. Part No. 5SY8114-7
Each
R 1,276.57(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 40A, Breaking Capacity 18.5 kA, Fixed Mount
  • RS stock no. 254-047
  • Mfr. Part No. 269243 NZMB2-S40-CNA
Each
R 10,715.94(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 250A, Breaking Capacity 4 kA, Fixed Mount
  • RS stock no. 256-766
  • Mfr. Part No. 271439 NZMC2-4-A250/160
Each
R 35,656.57(exc. VAT)
Eaton Eaton Moeller NZM DC Link Kit for use with N2-4-S1(-S15)-DC
  • RS stock no. 247-867
  • Mfr. Part No. 131730 NZM2-4-XKV2P
Each
R 4,707.15(exc. VAT)
ABB F200 RCCB, 25A, 4 Pole, 100mA, Type A, 230V ac
  • RS stock no. 225-6128
  • Mfr. Part No. 2CSF204101R2250 F204 A-25/0,1
Each
R 4,167.08(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 63A, Breaking Capacity 5 kA, Plug In
  • RS stock no. 230-389
  • Mfr. Part No. 113359 NZMH2-M63-SVE
Each
R 14,206.95(exc. VAT)
Siemens SENTRON Cover Frame for use with 3VA15, 3VA25/26
  • RS stock no. 161-971
  • Mfr. Part No. 3VA9503-0SB50
Each
R 1,164.61(exc. VAT)
Better World
Siemens RCBO, 10A Current Rating, 2P Poles, 300mA Trip Sensitivity, Sentron Range
  • RS stock no. 225-8781
  • Mfr. Part No. 5SU1654-7KK10
Each
R 3,448.75(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 40A, Breaking Capacity 18.5 kA, Fixed Mount
  • RS stock no. 230-256
  • Mfr. Part No. 107776 NZMB2-A40-BT-NA
Each
R 13,108.09(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 40A, Breaking Capacity 5 kA, Plug In
  • RS stock no. 229-925
  • Mfr. Part No. 113328 NZMH2-A40-SVE
Each
R 13,511.92(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 63A, Breaking Capacity 5 kA, Fixed Mount
  • RS stock no. 255-602
  • Mfr. Part No. 265827 NZMH2-4-A63
Each
R 15,571.13(exc. VAT)
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 16A, Breaking Capacity 16 kA, DIN Rail Mount
  • RS stock no. 271-9625
  • Mfr. Part No. 3VA10962ED360AA0
Each
R 4,410.21(exc. VAT)
Schneider Electric, ComPacT MCCB 3P 250A, Fixed Mount
  • RS stock no. 260-8041
  • Mfr. Part No. C25W36E250
Each
R 95,451.30(exc. VAT)
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