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

35185 Products showing for Circuit Breakers

1664 of 999+
Better World
Schneider Electric Busbar Feed Unit Joint, Canalis KBB Series
  • RS Stock No. 211-0393
  • Mfr. Part No. KBB40ZJ44W
Each
TWD1,223.00(exc. GST)
Better World
Schneider Electric Busbar Trunking Fixing Bracket, Canalis KBA Series
  • RS Stock No. 248-4066
  • Mfr. Part No. KBA40ZFU
Each
TWD116.00(exc. GST)
Better World
Siemens, SENTRON MCCB 3P 40A, Breaking Capacity 200 kA, Fixed Mount
  • RS Stock No. 270-4592
  • Mfr. Part No. 3VA2140-0HL36-0AA0
Each
TWD43,306.00(exc. GST)
ABB System Pro M Compact S200M MCB, 4P, 1A Curve D, 400V AC, 125V DC, 15 kA Breaking Capacity
  • RS Stock No. 201-239
  • Mfr. Part No. 2CDS274001R0011
Each
TWD20,062.00(exc. GST)
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 7A, Breaking Capacity 10 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-725
  • Mfr. Part No. 3VA5107-1MH31-0AA0
Each
TWD18,752.00(exc. GST)
Schneider Electric Kaedra Distribution Board, 17 Way, 125 A
  • RS Stock No. 498-3303
  • Mfr. Part No. 13172
Each
TWD12,794.00(exc. GST)
Eaton, Eaton Moeller Series NZM MCCB Molded Case Circuit Breaker 3P 45A, Breaking Capacity 5 kA, Fixed Mount
  • RS Stock No. 230-953
  • Mfr. Part No. 107815 NZMH2-AF45-BT-NA
Each
TWD26,782.00(exc. GST)
ABB Emax2 Electronic Circuit Breaker 1.25kA 1SDA07, 4 channels
  • RS Stock No. 259-3635
  • Mfr. Part No. 1SDA071609R1
Each
TWD504,632.00(exc. GST)
Siemens, SENTRON MCCB 3P 175A, Breaking Capacity 7 kA, Fixed Mount
  • RS Stock No. 148-005
  • Mfr. Part No. 3VA5217-5EF31-2AA0
Each
TWD64,996.00(exc. GST)
HENSEL ENYBOARD Distribution Board, 63 A
  • RS Stock No. 117-582
  • Mfr. Part No. KV 3654 M
Each
TWD8,649.00(exc. GST)
Residual current circuit-breaker, 40A
  • RS Stock No. 611-296
  • Mfr. Part No. PFIM-63/4/003-XG/B
Each
TWD49,158.00(exc. GST)
Phoenix Contact Circuit Breaker - CBB Single Pole 24V dc Voltage Rating DIN Rail, 60A Current Rating
  • RS Stock No. 131-572
  • Mfr. Part No. 2801483
Each
TWD15,878.00(exc. GST)
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 3P 250A, Breaking Capacity 3 kA
  • RS Stock No. 245-454
  • Mfr. Part No. 3VA6225-6JP31-0AA0
Each
TWD106,131.00(exc. GST)
Better World
Schneider Electric Compact NSX Terminal Extention for use with circuit breaker
  • RS Stock No. 211-2639
  • Mfr. Part No. LV429221
Each
TWD2,080.00(exc. GST)
ABB S800S MCB, 2P, 10A Curve K, 240V AC, 50 kA Breaking Capacity
  • RS Stock No. 140-700
  • Mfr. Part No. 2CCS862001R0427
Each
TWD16,330.00(exc. GST)
Phoenix Contact Surge Protector, 8A, Plug In Mount
  • RS Stock No. 890-3792
  • Mfr. Part No. 2800906
Each
TWD1,767.00(exc. GST)
Eaton xEffect FAZ MCB, 1P, 1.5A Curve B, 230V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 259-175
  • Mfr. Part No. 278521 FAZ-B1,5/1
Each
TWD1,023.00(exc. GST)
ABB Tmax XT Adapter for use with Circuit Breaker
  • RS Stock No. 231-9355
  • Mfr. Part No. 1SDA104723R1 xFP XT5 400A3p
Each
TWD3,303.00(exc. GST)
Eaton Eaton xEnergy Basic Busbar
  • RS Stock No. 258-929
  • Mfr. Part No. 289865 BPZ-BB/T-20/5/2000
1 Pack of 4
TWD74,585.00(exc. GST)
Lovato ModuLo P1MB MCB, 3P, 50A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 825-5851
  • Mfr. Part No. P1MB3PC50
Each
TWD3,119.00(exc. GST)
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