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

1723 of 999+
Better World
ABB System Pro M Compact S200 MCB, 4P, 50A Curve D, 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 746-7949
  • Mfr. Part No. 2CDS254001R0501 S204-D50
Each
TWD8,277.00(exc. GST)
Siemens ALPHA Distribution Board
  • RS Stock No. 218-1887
  • Mfr. Part No. 8GB5003-5KM
Each
TWD1,900.00(exc. GST)
ABB SU200 M MCB, 4P, 10A Curve C, 480V AC, 15 kA Breaking Capacity
  • RS Stock No. 203-651
  • Mfr. Part No. 2CDS274337R0104
Each
TWD14,863.00(exc. GST)
Better World
Siemens SENTRON Electronic Circuit Breaker 250A 3VA2, 3 channels Type N
  • RS Stock No. 157-173
  • Mfr. Part No. 3VA2225-7HL32-0AA0
Each
TWD71,396.00(exc. GST)
ABB S801C MCB, 1P, 32A Curve D, 400V AC, 25 kA Breaking Capacity
  • RS Stock No. 140-800
  • Mfr. Part No. 2CCS881001R0321
Each
TWD4,781.00(exc. GST)
Schneider Electric EasyPact Electronic Circuit Breaker 50A, Plug In
  • RS Stock No. 122-350
  • Mfr. Part No. LV510474P
Each
TWD5,872.00(exc. GST)
Schneider Electric Resi9 Resi9 XE DM MCB, 1P, 20A Curve D, 230V AC, 3000 A Breaking Capacity
  • RS Stock No. 287-6048
  • Mfr. Part No. R9EFD620
Each
TWD1,768.00(exc. GST)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 125A, Breaking Capacity 4 kA, Plug In
  • RS Stock No. 229-544
  • Mfr. Part No. 113231 NZMC2-4-A125-SVE
Each
TWD47,587.00(exc. GST)
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 600A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 249-954
  • Mfr. Part No. 3VA6560-6HM46-2AA0
Each
TWD245,213.00(exc. GST)
Eaton xPole MCB, 3P, 50A Curve C, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 864-4412
  • Mfr. Part No. 242479 PLSM-C50/3-MW
Each
TWD3,337.00(exc. GST)
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 110 kA, Fixed Mount
  • RS Stock No. 270-4790
  • Mfr. Part No. 3VA2510-7HL32-0AA0
Each
TWD484,139.00(exc. GST)
Schneider Electric, ComPacT MCCB 4P 25A, Fixed Mount
  • RS Stock No. 260-7628
  • Mfr. Part No. C11H4TM025B
Each
TWD31,533.00(exc. GST)
Siemens SENTRON 5SJ MCB, 1P, 10A
  • RS Stock No. 232-2223
  • Mfr. Part No. 5SJ4110-6HG40
Each
TWD2,170.00(exc. GST)
Siemens 5SM26 RCCB, 63A, 4 Pole, 300mA, Type AC, 400V
  • RS Stock No. 328-397
  • Mfr. Part No. 5SM2645-0
Each
TWD5,364.00(exc. GST)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 400A, Breaking Capacity 9 kA, Plug In
  • RS Stock No. 240-909
  • Mfr. Part No. 191370 NZMH3-VX400-SVE
Each
TWD118,124.00(exc. GST)
Schneider Electric Altivar Process Modular Busbar Kit
  • RS Stock No. 119-420
  • Mfr. Part No. VW3A98BBMAAB
Each
TWD39,048.00(exc. GST)
Better World
Schneider Electric Acti9 iDT40 RCCB, 25A, 3+N Pole, 30mA, Type A, 400V ac
  • RS Stock No. 238-3508
  • Mfr. Part No. A9Y64725
Each
TWD16,561.00(exc. GST)
Better World
Schneider Electric Acti 9 A9N1 MCB, 3P, 125A Curve B
  • RS Stock No. 219-8282
  • Mfr. Part No. A9N18351
Each
TWD34,559.00(exc. GST)
ABB S804C MCB, 4P, 20A Curve D, 415V AC, 25 kA Breaking Capacity
  • RS Stock No. 140-507
  • Mfr. Part No. 2CCS884001R0201
Each
TWD22,939.00(exc. GST)
Better World
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 209-5122
  • Mfr. Part No. 3VA2110-5JQ32-0AA0
Each
TWD66,286.00(exc. GST)
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