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

1735 of 999+
Siemens, SENTRON MCCB Molded Case Circuit Breaker 2P 700A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 257-548
  • Mfr. Part No. 3VA5570-6EC66-0AA0
Each
TWD186,592.00(exc. GST)
Schneider Electric, ComPacT MCCB 3P 220A, Fixed Mount
  • RS Stock No. 260-7999
  • Mfr. Part No. C25V32M220
Each
TWD107,978.00(exc. GST)
RS PRO Residential RCCBs, 40A, 2 Pole, 300mA, Type A, 230V
  • RS Stock No. 284-2370
Each
TWD2,476.00(exc. GST)
Phoenix Contact Surge Protector, DIN Rail Mount
  • RS Stock No. 131-424
  • Mfr. Part No. 2920612
Each
TWD7,319.00(exc. GST)
Eaton RCBO, 16A Current Rating, 1P + N Poles, 30mA Trip Sensitivity, Type B, xPole Range
  • RS Stock No. 250-730
  • Mfr. Part No. 193528 PXK-B16/1N/003-F
Each
TWD9,272.00(exc. GST)
Better World
Siemens SENTRON 5SL6 MCB, 2P, 2A Curve C, 400V AC, 72V DC
  • RS Stock No. 213-1036
  • Mfr. Part No. 5SL6202-7
Each
TWD3,096.00(exc. GST)
Hager BFF RCCB, 40A, 1P+N Pole, 300mA, Type F
  • RS Stock No. 602-060
  • Mfr. Part No. BFF240F
Each
TWD11,771.00(exc. GST)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 250A, Breaking Capacity 5 kA, Fixed Mount
  • RS Stock No. 256-144
  • Mfr. Part No. 269275 NZMN3-AEF250-NA
Each
TWD91,878.00(exc. GST)
ABB Tmax XT Trip Unit for use with Tmax XT
  • RS Stock No. 236-7227
  • Mfr. Part No. 1SDA067267R1 TMG 80-240 XT2 3p
Each
TWD8,243.00(exc. GST)
ABB S301 MCB, 1P, 4A Curve K, 415V AC, 125V DC, 100 kA Breaking Capacity
  • RS Stock No. 203-021
  • Mfr. Part No. 2CDS381001R0337
Each
TWD4,883.00(exc. GST)
Schneider Electric RCBO, 45A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type B, Acti9 Range
  • RS Stock No. 336-590
  • Mfr. Part No. SEE145B03
Each
TWD6,026.00(exc. GST)
Phoenix Contact Thermomagnetic Device Circuit Breaker Thermal Circuit Breaker - CB 2 Pole 80V dc Voltage Rating, 3A
  • RS Stock No. 212-8798
  • Mfr. Part No. 2800893
Each
TWD3,084.00(exc. GST)
Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 40A, Breaking Capacity 5 kA, Fixed Mount
  • RS Stock No. 256-007
  • Mfr. Part No. 269255 NZMN2-S40-CNA
Each
TWD23,372.00(exc. GST)
Phoenix Contact Thermal Circuit Breaker - TMC 1 Single Pole 65 V dc, 250V ac Voltage Rating DIN Rail Mount, 2A Current
  • RS Stock No. 801-6983
  • Mfr. Part No. 0914099
Each
TWD2,711.00(exc. GST)
ABB S204L MCB, 4P, 20A Curve D, 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 204-253
  • Mfr. Part No. 2CDS244701R0201
Each
TWD9,001.00(exc. GST)
Phoenix Contact 1 Phase Surge Protector, 40kA, 2500V (Volts), DIN Rail Mount
  • RS Stock No. 131-654
  • Mfr. Part No. 2910365
Each
TWD7,803.00(exc. GST)
ABB RCBO, 63A Current Rating, 3P Poles, Type B
  • RS Stock No. 237-5074
  • Mfr. Part No. 2CSR253001R1635
Each
TWD13,684.00(exc. GST)
Siemens SENTRON 5SY5 MCB, 1P, 8A Curve B, 400V AC, 220V DC, 15 kA Breaking Capacity
  • RS Stock No. 610-509
  • Mfr. Part No. 5SY5108-6
Each
TWD2,167.00(exc. GST)
Better World
Siemens SENTRON Electronic Circuit Breaker 250A 3VA, 3 channels
  • RS Stock No. 155-818
  • Mfr. Part No. 3VA2325-8KQ32-0AA0
Each
TWD162,898.00(exc. GST)
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 3P 40A, Breaking Capacity 2.5 kA
  • RS Stock No. 245-695
  • Mfr. Part No. 3VA6140-7JP31-2AA0
Each
TWD73,564.00(exc. GST)
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