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

1652 of 999+
Eaton, Eaton Moeller series NZM MCCB Molded Case Circuit Breaker 4P 125A, Breaking Capacity 5 kA, Plug In
  • RS Stock No. 230-852
  • Mfr. Part No. 113005 NZMN2-4-AF125-BT-NA
Each
TWD59,809.00(exc. GST)
Eaton xEffect FAZ MCB, 2P, 20A Curve B, 415V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 245-995
  • Mfr. Part No. 132763 FAZ-B20/2-RT
Each
TWD4,368.00(exc. GST)
Eaton Eaton xEnergy Basic Flange Plate for use with Service Distribution Board IVS, Wall Mounting Distribution System
  • RS Stock No. 256-658
  • Mfr. Part No. 292430 BP-FLP-600-2K-W
Each
TWD770.00(exc. GST)
Better World
Schneider Electric Acti 9 Acti9 iDT40T MCB, 3P, 20A Curve D, 400V AC
  • RS Stock No. 238-3386
  • Mfr. Part No. A9P32320
Each
TWD5,661.00(exc. GST)
Eaton xEffect FAZ MCB, 1P, 40A Curve S, 230V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 256-920
  • Mfr. Part No. 278616 FAZ-S40/1
Each
TWD2,153.00(exc. GST)
Siemens, SENTRON MCCB 3P 600A, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 249-392
  • Mfr. Part No. 3VA6560-5KL36-2AA0
Each
TWD221,841.00(exc. GST)
Schneider Electric, PowerPact MCCB 1P 50A, Breaking Capacity 65 kA, Clip-On
  • RS Stock No. 429-503
  • Mfr. Part No. BJF16050
Each
TWD26,139.00(exc. GST)
ABB Emax2 Electronic Circuit Breaker 1.6kA Ekip Hi-Touch LSI, 4 channels
  • RS Stock No. 259-4712
  • Mfr. Part No. 1SDA072989R1
Each
TWD530,659.00(exc. GST)
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 800A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 257-500
  • Mfr. Part No. 3VA5580-7EC36-2AA0
Each
TWD221,458.00(exc. GST)
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 18 kA, Fixed Mount
  • RS Stock No. 147-772
  • Mfr. Part No. 3VA5210-5EC31-1AA0
Each
TWD43,014.00(exc. GST)
Better World
Schneider Electric Acti 9 IC60L MCB, 4P, 25A, Type Z, 400V AC, 250V DC, 20 kA, 15 kA Breaking Capacity
  • RS Stock No. 212-0131
  • Mfr. Part No. A9F92425
Each
TWD13,038.00(exc. GST)
ABB System Pro M Compact S300P MCB, 2P, 200mA Curve K, 415V AC, 125V DC, 100 kA Breaking Capacity
  • RS Stock No. 204-242
  • Mfr. Part No. 2CDS382001R0087
Each
TWD10,874.00(exc. GST)
ABB System Pro M Compact S200M MCB, 2P, 50A, Type Z, 400V AC, 125V DC, 15 kA Breaking Capacity
  • RS Stock No. 202-908
  • Mfr. Part No. 2CDS272001R0578
Each
TWD12,547.00(exc. GST)
Schneider Electric, ComPacT New Generation MCCB 3P 125A, Breaking Capacity 25 kA, Screw Mount
  • RS Stock No. 207-249
  • Mfr. Part No. BDL36125LU
Each
TWD28,042.00(exc. GST)
Better World
Siemens, SENTRON MCCB 3P 400A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 249-672
  • Mfr. Part No. 3VA6440-8KM31-0AA0
Each
TWD221,458.00(exc. GST)
ABB SU200 M MCB, 2P, 35A Curve K, 440V AC, 96V DC, 15 kA Breaking Capacity
  • RS Stock No. 200-628
  • Mfr. Part No. 2CDS272337R0547
Each
TWD10,495.00(exc. GST)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 900A, Breaking Capacity 15 kA, Fixed Mount
  • RS Stock No. 259-365
  • Mfr. Part No. 271111 NZMN4-AEF900-NA
Each
TWD249,849.00(exc. GST)
Better World
Siemens, SENTRON MCCB 4P 16A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 271-9466
  • Mfr. Part No. 3VA1196-5GD46-0AA0
Each
TWD21,830.00(exc. GST)
Better World
ABB, XT4H MCCB 3P 20A, Fixed Mount
  • RS Stock No. 236-6748
  • Mfr. Part No. 1SDA068443R1 XT4H 160 MA 20 FF
Each
TWD24,498.00(exc. GST)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 63A, Breaking Capacity 7.5 kA, Fixed Mount
  • RS Stock No. 255-599
  • Mfr. Part No. 265815 NZMN1-4-A63
Each
TWD21,341.00(exc. GST)
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