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

12 of 999+
Eaton xEffect MCB, 4P, 16A Curve C, 240 → 415V AC, 96V DC, 10 kA Breaking Capacity
  • RS Stock No. 922-7144
  • Mfr. Part No. 279061 FAZ-C16/4
Each
TWD6,296.00(exc. GST)
ABB 72 Way Plastic Consumer Unit, 125A, IP65 Mistral65
  • RS Stock No. 811-1919
  • Mfr. Part No. 1SL1209A00 65P18X42
Each
TWD4,833.00(exc. GST)
Siemens SENTRON Door Feedthrough Accessory for use with 3VF8, Circuit Breaker 3VF7
  • RS Stock No. 265-533
  • Mfr. Part No. 8UC7414-1BB44
Each
TWD11,648.00(exc. GST)
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P 125A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 232-0254
  • Mfr. Part No. 1SDA067417R1 XT1N 160 TMD 125A FF
Each
TWD12,284.00(exc. GST)
ABB F200 RCD, 25A, 4 Pole, 30mA, Type AC, 230/400V ac
  • RS Stock No. 183-3636
  • Mfr. Part No. 2CSF204023R1250
Each
TWD3,888.00(exc. GST)
Better World
ABB S200C MCB, 2P, 4A Curve B, 415V AC, 6 kA Breaking Capacity
  • RS Stock No. 212-1618
  • Mfr. Part No. 2CDS252280R0045
Each
TWD1,634.00(exc. GST)
Eaton xPole MCB, 1+N, 16A Curve C, 230V AC, 4.5 kA Breaking Capacity
  • RS Stock No. 230-1076
  • Mfr. Part No. 264746 PLG4-C16/1N
Each
TWD340.00(exc. GST)
Better World
Schneider Electric Multi 9 C60SP MCB, 4P, 20A Curve D, 440V AC, 15 kA Breaking Capacity
  • RS Stock No. 211-2407
  • Mfr. Part No. M9F23420
Each
TWD7,781.00(exc. GST)
Better World
Schneider Electric Acti 9 iC60N MCB, 3P, 25A Curve C, 400V AC, 12 → 144V DC, 6 kA Breaking Capacity
  • RS Stock No. 734-9157
  • Mfr. Part No. A9F77325
Each
TWD5,495.00(exc. GST)
Phoenix Contact Surge Protector, 5kA, 60V dc, Surface Mount Mount
  • RS Stock No. 241-6053
  • Mfr. Part No. 2749628
Each
TWD4,843.00(exc. GST)
Schneider Electric, ComPacT MCCB 4P 600A, Fixed Mount
  • RS Stock No. 260-8245
  • Mfr. Part No. C63S4TM600D
Each
TWD254,072.00(exc. GST)
Better World
Siemens Sentron 5SY4 MCB, 3P, 6A Curve C, 400V AC, 60V DC, 10 kA Breaking Capacity
  • RS Stock No. 772-1366
  • Mfr. Part No. 5SY4306-7
Each
TWD2,726.00(exc. GST)
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 80A, Breaking Capacity 25 kA, DIN Rail Mount
  • RS Stock No. 271-9618
  • Mfr. Part No. 3VA10803ED360AA0
Each
TWD14,942.00(exc. GST)
Better World
Schneider Electric GFP RCCB, 25A, 2 Pole, 26mA, 277V ac
  • RS Stock No. 211-2462
  • Mfr. Part No. M9R41225
Each
TWD13,672.00(exc. GST)
Schneider Electric, ComPacT NSX MCCB 3P 50A, Fixed Mount
  • RS Stock No. 254-6271
  • Mfr. Part No. C103MA050
Each
TWD7,721.00(exc. GST)
Eaton RCCB, 40A, 2 Pole, 30mA, Type A, 230V ac
  • RS Stock No. 230-1065
  • Mfr. Part No. 109274 PFGCM-40/2/003-A
Each
TWD2,199.00(exc. GST)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 250A, Breaking Capacity 4 kA, Fixed Mount
  • RS Stock No. 257-002
  • Mfr. Part No. 271423 NZMC2-A250
Each
TWD51,341.00(exc. GST)
Lovato 3 Phase Surge Protector, 40kA
  • RS Stock No. 216-8309
  • Mfr. Part No. SG2DGK10M3
Each
TWD9,293.00(exc. GST)
Eaton xEffect MCB, 3P, 4A Curve D
  • RS Stock No. 230-1049
  • Mfr. Part No. 177440 FAZ6-D4/3
Each
TWD5,262.00(exc. GST)
Siemens SENTRON Current Transformer for use with Circuit Breaker 3WL10 / 3VA27
  • RS Stock No. 266-728
  • Mfr. Part No. 3VW9011-0GF31
Each
TWD38,123.00(exc. GST)
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