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

1714 of 999+
Eaton xEffect FAZ MCB, 1P, 32A Curve C, 250V DC, 10 kA Breaking Capacity
  • RS Stock No. 230-897
  • Mfr. Part No. 113766 FAZ-C32/1-NA-DC
Each
TWD4,674.00(exc. GST)
Better World
Siemens SENTRON 5SL6 MCB, 3P, 32A Curve B, 6 kA Breaking Capacity
  • RS Stock No. 202-7049
  • Mfr. Part No. 5SL6332-6
Each
TWD2,946.00(exc. GST)
Eaton xComfort IKA Distribution Board
  • RS Stock No. 125-766
  • Mfr. Part No. 174210 IKA-2/36-OT
Each
TWD5,416.00(exc. GST)
Hager Electronic Circuit Breaker 20A MFS, 1 channels
  • RS Stock No. 251-2069
  • Mfr. Part No. MFS720
Each (In a Pack of 12)
TWD880.20(exc. GST)
Schneider Electric ComPacT New Generation Trip Unit for use with ComPacT NSX100/160 Circuit Breakers
  • RS Stock No. 260-9359
  • Mfr. Part No. C103TM040
Each
TWD11,354.00(exc. GST)
Better World
Siemens SENTRON Electronic Circuit Breaker 400A 3VA, 4 channels
  • RS Stock No. 155-821
  • Mfr. Part No. 3VA2340-8HL42-0AA0
Each
TWD159,205.00(exc. GST)
Schneider Electric Linergy Busbar Support for use with Linergy BS 5/10 mm
  • RS Stock No. 276-8819
  • Mfr. Part No. LVS04664
Each
TWD7,985.00(exc. GST)
Schneider Electric PowerPact Thermal Magnetic Circuit Breaker - PowerPacT 4 Pole 525V Voltage Rating Clip-On, 60A
  • RS Stock No. 358-218
  • Mfr. Part No. BGL46060LU
Each
TWD49,188.00(exc. GST)
Hager Hager NSN Circuit Breaker, 2P, 50A Curve D, 415V AC, 15 kA Breaking Capacity
  • RS Stock No. 599-719
  • Mfr. Part No. NSN250
Each
TWD9,311.00(exc. GST)
HENSEL ENYSTAR Distribution Board, 8 Way, 63 A
  • RS Stock No. 117-028
  • Mfr. Part No. FP VN 0811 GB
Each
TWD52,050.00(exc. GST)
Eaton Eaton Moeller NZM Door Coupling Handle for use with N(S)4(-4), NZM4(-4)
  • RS Stock No. 259-664
  • Mfr. Part No. 271515 NZM4-XTVDVR-60
Each
TWD12,567.00(exc. GST)
Eaton RCBO, 16A Current Rating, 4P Poles, 30mA Trip Sensitivity, Type A, Type D, FRBm6 Range
  • RS Stock No. 123-350
  • Mfr. Part No. 170894 FRBM6-D16/3N/003-A
Each
TWD8,781.00(exc. GST)
Siemens Single Phase Industrial Surge Protection, 2A, 230V (Volts), DIN Rail Mount
  • RS Stock No. 266-9587
  • Mfr. Part No. 5SY1710-2
Each
TWD2,277.00(exc. GST)
Better World
ABB System Pro M Compact S200 MCB, 1P, 500mA Curve C, 253V AC, 72V DC, 20 kA Breaking Capacity
  • RS Stock No. 231-9670
  • Mfr. Part No. 2CDS251001R0984 S201 C 0.5A - 10 KA
1 Box of 1
TWD702.00(exc. GST)
ABB Emax2 Electronic Circuit Breaker 1kA 1SDA07, 3 channels
  • RS Stock No. 259-4072
  • Mfr. Part No. 1SDA072156R1
Each
TWD252,296.00(exc. GST)
Legrand 230V (Volts) Circuit Trip Circuit Trip for use with DX³
  • RS Stock No. 266-1298
  • Mfr. Part No. 406286
Each
TWD2,880.00(exc. GST)
ABB Tmax T Shunt Closing Release for use with Circuit Breaker
  • RS Stock No. 232-0145
  • Mfr. Part No. 1SDA062076R1 SCR T7M-X1 24VAC/DC
Each
TWD5,245.00(exc. GST)
Legrand DNX3 Circuit Breaker, 2P, 2A Curve C, 230V AC, 6 kA Breaking Capacity
  • RS Stock No. 266-1312
  • Mfr. Part No. 406876
Each
TWD1,409.00(exc. GST)
ABB Opening Solenoid for use with Tmax XT
  • RS Stock No. 237-6279
  • Mfr. Part No. 1SDA067208R1
Each
TWD32,540.00(exc. GST)
Better World
Schneider Electric Busbar End Feed Unit, Canalis KS Series
  • RS Stock No. 211-0475
  • Mfr. Part No. KSA630ABG4
Each
TWD58,252.00(exc. GST)
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