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

1738 of 999+
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 25A, Breaking Capacity 5 kA, Fixed Mount
  • RS Stock No. 258-945
  • Mfr. Part No. 290356 NZMH2-A25-S1
Each
TWD28,276.00(exc. GST)
Schneider Electric, ComPacT MCCB 3P 150A, Fixed Mount
  • RS Stock No. 260-7968
  • Mfr. Part No. C25R36M150
Each
TWD151,577.00(exc. GST)
Eaton xEffect FAZ MCB, 3+N, 25A Curve D, 400V AC, 60V DC, 10 kA Breaking Capacity
  • RS Stock No. 259-622
  • Mfr. Part No. 279000 FAZ-D25/3N
Each
TWD7,969.00(exc. GST)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 400A, Breaking Capacity 5 kA, Fixed Mount
  • RS Stock No. 256-741
  • Mfr. Part No. 269300 NZMN3-AE400-NA
Each
TWD94,407.00(exc. GST)
Better World
Schneider Electric RCBO, 16A Current Rating, 1P Poles, 30mA Trip Sensitivity, Resi9 Range
  • RS Stock No. 247-2231
  • Mfr. Part No. R9D01616
Each
TWD3,209.00(exc. GST)
HENSEL ENYBOARD Distribution Board, 63 A
  • RS Stock No. 117-288
  • Mfr. Part No. KV PC 9103
Each
TWD1,673.00(exc. GST)
ETA Thermal Circuit Breaker - 3120-N 2 Pole 50 V DC, 240 V AC Voltage Rating, 10A Current Rating
  • RS Stock No. 210-2077
  • Mfr. Part No. 3120-N526-P7T1-W01D-10A-A04011011M
Each
TWD2,210.00(exc. GST)
Schneider Electric Compact Coupling Link for use with PanelSeT PLA
  • RS Stock No. 354-381
  • Mfr. Part No. NSYAZ4PLA
Each
TWD4,108.00(exc. GST)
Schneider Electric, ComPacT MCCB 4P 100A, Fixed Mount
  • RS Stock No. 260-7889
  • Mfr. Part No. C25F42D100
Each
TWD67,353.00(exc. GST)
Schneider Electric Acti9 Acti9 iC60 MCB, 2P, 50A Curve B, 500V AC, 6000 A Breaking Capacity
  • RS Stock No. 429-207
  • Mfr. Part No. A9F76250
Each
TWD10,982.00(exc. GST)
ABB RCBO, 16A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type B, System Pro M Compact Range
  • RS Stock No. 181-4368
  • Mfr. Part No. 2CSA255103R1165 DS-ARC1 B16 A30
Each
TWD11,418.00(exc. GST)
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 600A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 249-629
  • Mfr. Part No. 3VA6560-7KQ32-0AA0
Each
TWD230,270.00(exc. GST)
Better World
Siemens SENTRON Electronic Circuit Breaker 400A 3VA, 3 channels
  • RS Stock No. 155-828
  • Mfr. Part No. 3VA2340-8JP32-0AA0
Each
TWD150,589.00(exc. GST)
HENSEL ENYBOARD Distribution Board, 101 A
  • RS Stock No. 117-064
  • Mfr. Part No. KV FC 03
Each
TWD356.00(exc. GST)
Hager Distribution Board
  • RS Stock No. 252-0202
  • Mfr. Part No. SL200809039011
Each
TWD1,623.00(exc. GST)
Better World
Siemens, SENTRON MCCB 3P 400A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 249-358
  • Mfr. Part No. 3VA6440-7KT31-2AA0
Each
TWD221,841.00(exc. GST)
Siemens SENTRON 5SM2xxx RCCB, 40A, 3 Pole, 30mA, Type A, 400V ac
  • RS Stock No. 241-4427
  • Mfr. Part No. 5SM2332-6
Each
TWD5,925.00(exc. GST)
Eaton xPole - PXL PXL MCB, 3P, 20A Curve B, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 256-160
  • Mfr. Part No. 236486 PXL-B20/3N
Each
TWD4,444.00(exc. GST)
Siemens SENTRON Signalling Module
  • RS Stock No. 277-0758
  • Mfr. Part No. 3WA9111-0AH12
Each
TWD20,705.00(exc. GST)
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 45A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 268-044
  • Mfr. Part No. 3VA5245-7ED41-2AA0
Each
TWD55,173.00(exc. GST)
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