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

70 of 999+
Better World
Schneider Electric Acti 9 iC60N MCB, 1P, 3A Curve C, 240V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 776-3430
  • Mfr. Part No. A9F74103
Each
TWD2,028.00(exc. GST)
Better World
Siemens, SENTRON MCCB 3P 20A, Breaking Capacity 25 kA
  • RS Stock No. 209-6768
  • Mfr. Part No. 3VA1120-3EE32-0AA0
Each
TWD13,647.00(exc. GST)
ABB 4 Way Plastic Consumer Unit, 63A, IP65 Mistral65
  • RS Stock No. 811-1880
  • Mfr. Part No. 1SL1200A00 65P04X12
Each
TWD914.00(exc. GST)
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 35A, Breaking Capacity 7 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-589
  • Mfr. Part No. 3VA5135-5ED31-0AA0
Each
TWD15,797.00(exc. GST)
Better World
Siemens Sentron 5SY4 MCB, 2P, 50A Curve C, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 124-3170
  • Mfr. Part No. 5SY4250-7
Each
TWD2,486.00(exc. GST)
Hager BD Series RCCB, 63A, 3 Pole, 30mA, Type AC, 400V
  • RS Stock No. 597-896
  • Mfr. Part No. BD366
Each
TWD21,044.00(exc. GST)
Siemens, SENTRON MCCB 4P 150A, Breaking Capacity 10 kA, Fixed Mount
  • RS Stock No. 147-440
  • Mfr. Part No. 3VA5215-6ED41-2AA0
Each
TWD86,209.00(exc. GST)
Phoenix Contact 1 Phase Surge Protector, 50kA, DIN Rail Mount
  • RS Stock No. 201-6559
  • Mfr. Part No. 2907388
Each
TWD16,439.00(exc. GST)
Legrand Circuit Breaker, 2P, 10A Curve D, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 266-1330
  • Mfr. Part No. 408014
Each
TWD4,605.00(exc. GST)
Siemens SIRIUS Undervoltage Release for use with Motor Circuit Breaker
  • RS Stock No. 157-853
  • Mfr. Part No. 3RV2922-1CV1
Each
TWD2,529.00(exc. GST)
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 3P 40A, Breaking Capacity 2.5 kA
  • RS Stock No. 245-522
  • Mfr. Part No. 3VA6140-7KM31-2AA0
Each
TWD111,686.00(exc. GST)
Eaton xEffect MCB, 4P, 63A Curve B, 400V AC, 25 kA Breaking Capacity
  • RS Stock No. 244-683
  • Mfr. Part No. 174537 AZ-4-B63
Each
TWD21,265.00(exc. GST)
Better World
Siemens, SENTRON MCCB 3P 160A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 270-4071
  • Mfr. Part No. 3VA2116-6HM32-0AA0
Each
TWD65,605.00(exc. GST)
Siemens, SENTRON MCCB 3P 225A, Breaking Capacity 7 kA, Fixed Mount
  • RS Stock No. 147-788
  • Mfr. Part No. 3VA5222-5EC31-2AA0
Each
TWD69,960.00(exc. GST)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 250A, Breaking Capacity 5 kA, Fixed Mount
  • RS Stock No. 249-033
  • Mfr. Part No. 192145 NZMN2-PX250-TZ
Each
TWD116,478.00(exc. GST)
Siemens, SENTRON MCCB 2P 90A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 147-729
  • Mfr. Part No. 3VA5190-5ED21-0AA0
Each
TWD16,114.00(exc. GST)
Better World
Siemens, 0AA0 MCCB 4P 40A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 211-6013
  • Mfr. Part No. 3VA1140-5ED42-0AA0
Each
TWD19,868.00(exc. GST)
Better World
Schneider Electric Acti 9 Acti9 iDT40N MCB, 4P, 63A Curve C, 10 kA Breaking Capacity
  • RS Stock No. 191-6102
  • Mfr. Part No. A9P24463
Each
TWD13,683.00(exc. GST)
Better World
ABB, XT3S MCCB 3P 250A, Breaking Capacity 42.5 kA, Fixed Mount
  • RS Stock No. 236-6664
  • Mfr. Part No. 1SDA068271R1 XT3S 250 TMG 250A FF
Each
TWD37,540.00(exc. GST)
Schneider Electric Altivar Process Modular Busbar Kit
  • RS Stock No. 119-414
  • Mfr. Part No. VW3A99ACFCB
Each
TWD21,507.00(exc. GST)
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