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

1765 of 999+
In Stock
Eaton Switching Interlock for use with PLS Range MCB, ZP-A Circuit Breaker
  • RS Stock No. 922-7248
  • Mfr. Part No. 274418 Z-IS/SPE-1TE
Each
TWD482.00(exc. GST)
Temporarily out of stock
ABB SMISSLINE Busbar for Smissline TP
  • RS Stock No. 246-2316
  • Mfr. Part No. 2CCF800228R0001
Each
TWD330.00(exc. GST)
Temporarily out of stock
Siemens SENTRON 4 Phase Busbar, 18mm Pitch
  • RS Stock No. 213-2584
  • Mfr. Part No. 5ST3770-2
Each (In a Pack of 10)
TWD4,217.80(exc. GST)
Temporarily out of stock
Siemens SENTRON 4 Phase Busbar
  • RS Stock No. 187-5210
  • Mfr. Part No. 5ST3746-3
Each
TWD5,034.00(exc. GST)
Temporarily out of stock
Siemens ALPHA Distribution Board
  • RS Stock No. 272-0263
  • Mfr. Part No. 8GK1051-2KK10
Each
TWD16,640.00(exc. GST)
In Stock
Lovato ModuLo P1MB MCB, 1P, 20A Curve B, 230V AC, 60V DC, 10 kA Breaking Capacity
  • RS Stock No. 825-5567
  • Mfr. Part No. P1MB1PB20
Each
TWD592.00(exc. GST)
In Stock
Rockwell Automation FB100 Busbar, 1000V
  • RS Stock No. 282-2337
  • Mfr. Part No. FB100480Q1
Each (In a Pack of 4)
TWD5,160.80(exc. GST)
Temporarily out of stock
ABB S800U MCB, 3P, 60A Curve K, 240V AC, 50 kA Breaking Capacity
  • RS Stock No. 141-256
  • Mfr. Part No. 2CCS863017R0587
Each
TWD35,512.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT New Generation MCCB 3P 160A, Fixed Mount
  • RS Stock No. 260-7818
  • Mfr. Part No. C16S3
Each
TWD42,175.00(exc. GST)
Temporarily out of stock
Phoenix Contact Surge Protector, DIN Rail Mount
  • RS Stock No. 131-623
  • Mfr. Part No. 2800801
Each
TWD11,079.00(exc. GST)
Temporarily out of stock
ABB RCBO, 6A Current Rating, 2P Poles, Type B
  • RS Stock No. 237-5134
  • Mfr. Part No. 2CSR272001R1065
Each
TWD7,964.00(exc. GST)
Temporarily out of stock
ABB Distribution Board
  • RS Stock No. 237-5944
  • Mfr. Part No. 188T3PB3MD
Each
TWD166,806.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 400A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 209-5223
  • Mfr. Part No. 3VA2440-5HN32-0AA0
Each
TWD104,663.00(exc. GST)
In Stock
Phoenix Contact DCS Wall Fixing Brackets for use with Small/Large Monitors And Operator Interfaces
  • RS Stock No. 230-1176
  • Mfr. Part No. 1082305
Each
TWD3,229.00(exc. GST)
Temporarily out of stock
ABB RCBO, 16A Current Rating, 3P Poles, Type B
  • RS Stock No. 237-5082
  • Mfr. Part No. 2CSR253101R1165
Each
TWD12,077.00(exc. GST)
In Stock
ABB RCBO, 13A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, System Pro M Compact Range
  • RS Stock No. 181-4372
  • Mfr. Part No. 2CSA255103R1134 DS-ARC1 C13 A30
Each
TWD10,276.00(exc. GST)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 630A 1SDA07, 3 channels
  • RS Stock No. 259-9872
  • Mfr. Part No. 1SDA070702R1
Each
TWD174,151.00(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1.25kA Ekip Hi-Touch LSI, 4 channels
  • RS Stock No. 259-4673
  • Mfr. Part No. 1SDA072948R1
Each
TWD447,517.00(exc. GST)
Temporarily out of stock
Eaton Circuit Breaker - NZM..-ME..NA 3 Pole 690V ac Voltage Rating, 140A Current Rating
  • RS Stock No. 250-9704
  • Mfr. Part No. 118965 NZMN2-ME140-NA
Each
TWD70,531.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 40A, Breaking Capacity 7 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-383
  • Mfr. Part No. 3VA5140-5EF41-0AA0
Each
TWD21,665.00(exc. GST)
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