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

145 of 999+
Schneider Electric IID RCCB, 40A, 4 Pole, 30mA, Type A, 380 → 415V ac
  • RS Stock No. 230-6688
  • Mfr. Part No. A9R51440
Each
TWD3,044.00(exc. GST)
Better World
Schneider Electric Acti 9 iC60N MCB, 1P, 1A Curve C, 240V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 776-3433
  • Mfr. Part No. A9F74101
Each
TWD2,004.00(exc. GST)
Better World
ABB System Pro M Compact S200 MCB, 3+N, 6A Curve K
  • RS Stock No. 237-3285
  • Mfr. Part No. 2CDS253103R0377
Each
TWD6,330.00(exc. GST)
Better World
Schneider Electric Acti 9 Acti9 iDT40T MCB, 1+N, 32A Curve B, 230V AC, 6 kA Breaking Capacity
  • RS Stock No. 191-6082
  • Mfr. Part No. A9P12632
Each
TWD1,900.00(exc. GST)
Mersen Surge Protector
  • RS Stock No. 251-3642
  • Mfr. Part No. 83120244 / STPT12-5K680V-3P-RM
Each
TWD29,445.00(exc. GST)
Siemens SENTRON Wire Connector for use with 3VA2 100/160/250
  • RS Stock No. 210-9365
  • Mfr. Part No. 3VA9264-0JF60
Each
TWD8,125.00(exc. GST)
Better World
Schneider Electric Multi 9 C60SP MCB, 4P, 10A Curve B, 440V AC, 15 kA Breaking Capacity
  • RS Stock No. 211-2349
  • Mfr. Part No. M9F21410
Each
TWD7,311.00(exc. GST)
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 100A, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 268-573
  • Mfr. Part No. 3VA6110-5JT41-0AA0
Each
TWD72,414.00(exc. GST)
ETA Thermal Circuit Breaker - 1616 Single Pole 32V Voltage Rating, 15A Current Rating
  • RS Stock No. 729-2732
  • Mfr. Part No. 1616-21-15A
Each
TWD1,082.00(exc. GST)
Better World
Schneider Electric Busbar Tap-Off Unit, Canalis KS Series
  • RS Stock No. 211-0459
  • Mfr. Part No. KSA25HD502
Each
TWD70,442.00(exc. GST)
Siemens SENTRON 5SY4 MCB, 2P, 63A, Type A, 230V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 610-587
  • Mfr. Part No. 5SY4563-5
Each
TWD6,553.00(exc. GST)
Eaton BCZ-A Door for use with Distribution Boards
  • RS Stock No. 243-512
  • Mfr. Part No. 101581 BCZ-A-TWS-4/52
Each
TWD3,544.00(exc. GST)
Better World
Schneider Electric Acti 9 Acti9 iDT40N MCB, 3+N, 16A Curve C, 400V AC
  • RS Stock No. 238-3378
  • Mfr. Part No. A9P24716
Each
TWD5,693.00(exc. GST)
Better World
Schneider Electric Straight Busbar Trunking, 2m, 40A, Canalis Series
  • RS Stock No. 211-0364
  • Mfr. Part No. KBA40ED4203TW
Each (In a Pack of 6)
TWD5,292.50(exc. GST)
Eaton NZMC3 Electronic Circuit Breaker 320A , 4 channels , Fixed
  • RS Stock No. 121-304
  • Mfr. Part No. 168465 NZMC3-4-A320/200-SVE
Each
TWD113,085.00(exc. GST)
ABB Emax2 Electronic Circuit Breaker 2kA 1SDA07, 3 channels
  • RS Stock No. 259-4277
  • Mfr. Part No. 1SDA072406R1
Each
TWD425,105.00(exc. GST)
HENSEL 1, 3 Phase Distribution Board, 24 Way, 63 A
  • RS Stock No. 183-2860
  • Mfr. Part No. KV9224M
Each
TWD5,088.00(exc. GST)
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 125A, Breaking Capacity 25 kA, DIN Rail Mount
  • RS Stock No. 271-9696
  • Mfr. Part No. 3VA11123ED460AA0
Each
TWD34,333.00(exc. GST)
Eaton RCBO, 20A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type A, Type C, FRBmM Range
  • RS Stock No. 123-653
  • Mfr. Part No. 170789 FRBMM-C20/2/003-A
Each
TWD5,416.00(exc. GST)
ABB Tmax XT Cover for use with Tmax XT
  • RS Stock No. 232-0208
  • Mfr. Part No. 1SDA066668R1 HTC XT3 2PCS
Each
TWD818.00(exc. GST)
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