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

97 of 999+
In Stock
TE Connectivity Thermal Magnetic Circuit Breakers - Potter & Brumfield W58 Single Pole 250V ac Voltage Rating Panel
  • RS Stock No. 240-8907
  • Mfr. Part No. 1-1393249-9
Each
TWD261.00(exc. GST)
Temporarily out of stock
ABB Tmax XT Undervoltage Release for use with Tmax XT
  • RS Stock No. 237-6058
  • Mfr. Part No. 1SDA066394R1 UVR XT1..XT4 480-525VAC
Each
TWD5,591.00(exc. GST)
In Stock
ABB High Performance S800N MCB, 3P, 80A Curve D, 400V AC, 36 kA Breaking Capacity
  • RS Stock No. 435-324
  • Mfr. Part No. 2CCG001244R0001
Each
TWD9,425.00(exc. GST)
In Stock
Better World
Schneider Electric Acti 9 A9N1 MCB, 1P, 80A Curve C
  • RS Stock No. 219-8290
  • Mfr. Part No. A9N18446
Each
TWD5,335.00(exc. GST)
In Stock
Better World
Schneider Electric Easypact Cvs100...250, Nsx100...250 Dc, Powerpact Multistandard Front Plate for use with Compact
  • RS Stock No. 221-1192
  • Mfr. Part No. LV429317
Each
TWD1,621.00(exc. GST)
Temporarily out of stock
Siemens Busbar Tap-Off Unit, BD01 Series
  • RS Stock No. 213-2427
  • Mfr. Part No. BVP:034284
Each
TWD5,973.00(exc. GST)
Temporarily out of stock
Socomec SIRCO Phase Barrier for use with SIRCOVER Transfer Switches
  • RS Stock No. 252-3485
  • Mfr. Part No. 29980024
Each
TWD1,105.00(exc. GST)
Temporarily out of stock
ABB S801S MCB, 1P, 63A, UC-K, 250V DC, 50 kA Breaking Capacity
  • RS Stock No. 140-629
  • Mfr. Part No. 2CCS861001R1597
Each
TWD14,539.00(exc. GST)
Temporarily out of stock
Eaton RCBO, 20A Current Rating, 2P Poles, 10mA Trip Sensitivity, Type A, Type D, FRBdM Range
  • RS Stock No. 121-274
  • Mfr. Part No. 168262 FRBDM-D20/1N/001-G/A
Each
TWD7,878.00(exc. GST)
In Stock
Eaton RCCB, 20A, 2 Pole, 30mA, Type B, 230V ac
  • RS Stock No. 922-8730
  • Mfr. Part No. 236239 PKNM-20/1N/B/003-A-MW
Each
TWD5,384.00(exc. GST)
Temporarily out of stock
ABB Tmax XT Conversion Kit for use with XT4
  • RS Stock No. 237-6245
  • Mfr. Part No. 1SDA067115R1 W MP RC XT4 4P
Each
TWD16,213.00(exc. GST)
Temporarily out of stock
Schneider Electric Canalis White Busbar Trunking, W113 mm x, L5m, Aluminium
  • RS Stock No. 276-9236
  • Mfr. Part No. KSA500ED35010
Each
TWD125,311.00(exc. GST)
Temporarily out of stock
Schneider Electric Acti9 3 Phase Distribution Board, 24 Way, 250 A
  • RS Stock No. 336-638
  • Mfr. Part No. SEA9BPN24
Each
TWD69,218.00(exc. GST)
Temporarily out of stock
ABB, SACE FORMULA MCCB Molded Case Circuit Breaker 1P 32A, Fixed Mount
  • RS Stock No. 231-9298
  • Mfr. Part No. 1SDA075115R1 XT3N 225 TMF 150-1500 3p F
Each
TWD5,937.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric iID RCCB, 63A, 4 Pole, 30mA, Type B-EV, 400V ac
  • RS Stock No. 248-3715
  • Mfr. Part No. A9Z51463
Each
TWD59,205.00(exc. GST)
In Stock
Eaton Moeller Door Coupling Handle for use with PKZM0, PKZM4
  • RS Stock No. 273-6416
  • Mfr. Part No. 106132 PKZ0-XH
Each
TWD2,087.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 160A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 271-9762
  • Mfr. Part No. 3VA1116-3GE42-0AA0
Each
TWD38,731.00(exc. GST)
Temporarily out of stock
Eaton Eaton Distribution Parts Undervoltage Release for use with Accessory, Accessory For Miniature Circuit Breaker,
  • RS Stock No. 255-677
  • Mfr. Part No. 248290 Z-USA/400
Each
TWD1,655.00(exc. GST)
In Stock
Better World
Siemens SENTRON 3VA1 MCB, 2P, 32A
  • RS Stock No. 224-7845
  • Mfr. Part No. 3VA1132-5ED26-0AA0
Each
TWD15,600.00(exc. GST)
Temporarily out of stock
Eaton xEffect FAZ MCB, 1P, 1A Curve B, 240V AC, 60V DC, 7.5 kA Breaking Capacity
  • RS Stock No. 253-955
  • Mfr. Part No. 240770 FAZT-B1/1
Each
TWD1,563.00(exc. GST)
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