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

189 of 999+
Better World
Schneider Electric NSX Motor Mechanism for use with ComPact NSX250
  • RS Stock No. 213-1345
  • Mfr. Part No. LV431545
Each
TWD45,462.00(exc. GST)
Schneider Electric TransferPacT Extension Terminal for use with Circuit Breaker
  • RS Stock No. 276-2391
  • Mfr. Part No. TPSCON36
Each
TWD4,875.00(exc. GST)
Schneider Electric, ComPacT MCCB 3P 250A, Fixed Mount
  • RS Stock No. 260-7905
  • Mfr. Part No. C25H32D250
Each
TWD77,511.00(exc. GST)
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 800A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 250-199
  • Mfr. Part No. 3VA6580-6HM42-0AA0
Each
TWD271,650.00(exc. GST)
Better World
Siemens, SENTRON MCCB 4P 50A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 271-9349
  • Mfr. Part No. 3VA1150-3GE42-0AA0
Each
TWD17,821.00(exc. GST)
Better World
Siemens, SENTRON MCCB 4P 63A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 270-4699
  • Mfr. Part No. 3VA2163-0KP46-0AA0
Each
TWD94,469.00(exc. GST)
Better World
Siemens, SENTRON MCCB 3P 25A, Breaking Capacity 200 kA, Fixed Mount
  • RS Stock No. 270-4508
  • Mfr. Part No. 3VA2125-0KP32-0AA0
Each
TWD87,227.00(exc. GST)
TE Connectivity Thermal Circuit Breaker - W28 Single Pole 32 V dc, 250V ac Voltage Rating, 12A Current Rating
  • RS Stock No. 782-6593
  • Mfr. Part No. W28-XQ1A-12
Each
TWD190.00(exc. GST)
Schneider Electric, ComPacT MCCB 3P 50A, Fixed Mount
  • RS Stock No. 260-9433
  • Mfr. Part No. C10F3TM050
Each
TWD22,652.00(exc. GST)
Better World
Siemens, SENTRON MCCB 4P 50A, Breaking Capacity 25 kA
  • RS Stock No. 209-6830
  • Mfr. Part No. 3VA1150-3EF42-0AA0
Each
TWD17,861.00(exc. GST)
Eaton xEffect - FRCmM RCCB, 63A, 4 Pole, 100mA, 240/415V ac
  • RS Stock No. 123-616
  • Mfr. Part No. 170445 FRCMM-63/4/01-S/A
Each
TWD19,244.00(exc. GST)
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P 630A, Fixed Mount
  • RS Stock No. 231-9341
  • Mfr. Part No. 1SDA100425R1 XT5S 630 EkipDip LS/I 630
Each
TWD79,887.00(exc. GST)
Schneider Electric MASTERPACT NW MCB, 3P, 2.5kA
  • RS Stock No. 247-1895
  • Mfr. Part No. 48300
Each
TWD713,668.00(exc. GST)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 600A, Breaking Capacity 15 kA, Fixed Mount
  • RS Stock No. 256-982
  • Mfr. Part No. 271136 NZMN4-VEF600-NA
Each
TWD164,216.00(exc. GST)
Eaton RCCB, 10A, 2 Pole, 10mA, Type AC, 230V ac
  • RS Stock No. 227-0688
  • Mfr. Part No. 264265 PFGM-16/2/001
Each
TWD8,923.00(exc. GST)
Hager NSN MCB, 2P, 32A Curve D, 415V AC, 20 kA Breaking Capacity
  • RS Stock No. 597-955
  • Mfr. Part No. NSN232
Each
TWD8,195.00(exc. GST)
ABB System Pro M Compact S200MUC MCB, 2P, 6A, Type Z, 440V AC, 440V DC, 25 kA Breaking Capacity
  • RS Stock No. 231-9736
  • Mfr. Part No. 2CDS272061R0378 S202 MUC Z 6A 10 KA
1 Box of 1
TWD9,276.00(exc. GST)
Better World
Siemens, SENTRON MCCB 3P 63A, Breaking Capacity 55 kA
  • RS Stock No. 209-6852
  • Mfr. Part No. 3VA1163-5EF32-0AA0
Each
TWD16,507.00(exc. GST)
Better World
ABB System Pro M Compact S200 MCB, 3P, 16A Curve K, 440V AC, 20 kA Breaking Capacity
  • RS Stock No. 514-0226
  • Mfr. Part No. 2CDS253001R0467 S203-K16
Each
TWD3,214.00(exc. GST)
Eaton xPole PXL, S200 MCB, 1P, 10A Curve B, 400V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 486-776
  • Mfr. Part No. 236029 PXL-B10/1
Each
TWD224.00(exc. GST)
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