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

1724 of 999+
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1kA Ekip G Touch LSIG, 4 channels
  • RS Stock No. 259-4541
  • Mfr. Part No. 1SDA072777R1
Each
TWD328,950.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric Circuit Trip
  • RS Stock No. 212-0239
  • Mfr. Part No. LV429433
Each
TWD35,168.00(exc. GST)
Temporarily out of stock
Eaton xEffect - FBSmV RCCB, 40A, 4 Pole, 100mA, 240/415V ac
  • RS Stock No. 123-171
  • Mfr. Part No. 170166 FBSMV-40/4/01-S/A
Each
TWD7,017.00(exc. GST)
Temporarily out of stock
ABB S803S RCCB, 100A, 3 Pole, 690V
  • RS Stock No. 140-961
  • Mfr. Part No. 2CCS803901R0639
Each
TWD88,602.00(exc. GST)
Temporarily out of stock
Siemens SENTRON Undervoltage Release
  • RS Stock No. 277-0743
  • Mfr. Part No. 3WA9111-0AE17
Each
TWD36,396.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 125A, Breaking Capacity 10 kA, Fixed Mount
  • RS Stock No. 347-111
  • Mfr. Part No. C16H6TM125
Each
TWD78,462.00(exc. GST)
In Stock
Lovato Single Phase Surge Protector, 40kA, DIN Rail Mount
  • RS Stock No. 248-5668
  • Mfr. Part No. SG2DG600M2
Each
TWD3,347.00(exc. GST)
Temporarily out of stock
Siemens ALPHA Door for use with Distribution boards
  • RS Stock No. 210-9440
  • Mfr. Part No. 8GB5004-5KM
Each
TWD1,641.00(exc. GST)
Temporarily out of stock
Siemens SENTRON 5SJ4111 MCB, 1P, 5A Curve D, 400V AC, 60V DC, 10 kA Breaking Capacity
  • RS Stock No. 300-099
  • Mfr. Part No. 5SJ4111-8HG42
Each
TWD2,479.00(exc. GST)
Temporarily out of stock
Schneider Electric PowerPact Thermal Magnetic Circuit Breaker - PowerPacT Single Pole 525V ac Voltage Rating Clip-On,
  • RS Stock No. 335-261
  • Mfr. Part No. BGL26050LU
Each
TWD16,456.00(exc. GST)
Temporarily out of stock
ABB PBFC 3, 3+N Phase Busbar
  • RS Stock No. 201-485
  • Mfr. Part No. 1STQ007402A0000
Each
TWD11,275.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 2P 40A, Breaking Capacity 25 kA, DIN Rail Mount
  • RS Stock No. 271-9314
  • Mfr. Part No. 3VA1140-3GD42-0AA0
Each
TWD17,503.00(exc. GST)
Temporarily out of stock
Schneider Electric ComPacT New Generation Trip Unit for use with ComPacT NSX100/160
  • RS Stock No. 260-9358
  • Mfr. Part No. C103TM032
Each
TWD11,357.00(exc. GST)
Temporarily out of stock
ABB S803S MCB, 3P, 20A, UC-K, 750V DC, 50 kA Breaking Capacity
  • RS Stock No. 140-740
  • Mfr. Part No. 2CCS863001R1487
Each
TWD35,108.00(exc. GST)
Temporarily out of stock
ABB RCBO, 10A Current Rating, 1P+N Poles, 300mA Trip Sensitivity, Type C
  • RS Stock No. 183-3705
  • Mfr. Part No. 2CSR245041R3104
Each
TWD8,848.00(exc. GST)
In Stock
Better World
ABB System Pro M Compact S200 MCB, 4P, 3A Curve D, 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 746-7908
  • Mfr. Part No. 2CDS254001R0031 S204-D3
Each
TWD6,675.00(exc. GST)
Temporarily out of stock
Schneider Electric RCBO, 16A Current Rating, 1P Poles, Type C, Acti9 Range
  • RS Stock No. 245-024
  • Mfr. Part No. A9D06816
Each
TWD8,018.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric, Masterpact MCCB 4P 1kA, Fixed Mount
  • RS Stock No. 248-3764
  • Mfr. Part No. LV847138
Each
TWD358,084.00(exc. GST)
In Stock
Schneider Electric RCBO, 16A Current Rating, 4P Poles, 30mA Trip Sensitivity, Type AC, Acti9 Range
  • RS Stock No. 276-9125
  • Mfr. Part No. A9D57416
Each
TWD23,118.00(exc. GST)
Temporarily out of stock
ABB Tmax XT Trip Unit for use with Tmax XT
  • RS Stock No. 236-7257
  • Mfr. Part No. 1SDA067333R1 Ekip LS/I In=160A XT2 4p
Each
TWD19,948.00(exc. GST)
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