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

297 of 999+
In Stock
Lovato ModuLo P1MB MCB, 2P, 10A Curve B, 230V AC, 80V DC, 10 kA Breaking Capacity
  • RS Stock No. 825-5677
  • Mfr. Part No. P1MB2PB10
Each
TWD1,772.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 220A, Fixed Mount
  • RS Stock No. 260-7941
  • Mfr. Part No. C25N3MA220
Each
TWD65,079.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB 3P 80A, Breaking Capacity 7 kA, Fixed Mount
  • RS Stock No. 147-717
  • Mfr. Part No. 3VA5180-5ED31-0AA0
Each
TWD17,558.00(exc. GST)
Temporarily out of stock
ABB, Tmax XT MCCB 3P 50A, Fixed Mount
  • RS Stock No. 237-6142
  • Mfr. Part No. 1SDA066804R1 XT1B 160 TMD 50A FF
Each
TWD9,367.00(exc. GST)
In Stock
Eaton MCB, 1+N, 32A Curve C
  • RS Stock No. 230-1081
  • Mfr. Part No. 264749 PLG4-C32/1N
Each
TWD419.00(exc. GST)
Temporarily out of stock
Schneider Electric Mureva Distribution Board, 90 A
  • RS Stock No. 119-360
  • Mfr. Part No. 13172M
Each
TWD11,645.00(exc. GST)
In Stock
Better World
Schneider Electric Multi 9 MCB, 2P, 10A Curve D, 10 kA Breaking Capacity
  • RS Stock No. 219-9145
  • Mfr. Part No. M9F23210
Each
TWD5,966.00(exc. GST)
In Stock
Better World
Schneider Electric Circuit Trip for use with Acti 9 Isobar A Type Distribution Boards, Acti9 Isobar B Type Distribution
  • RS Stock No. 134-6005
  • Mfr. Part No. SEA9TB1001
Each
TWD408.00(exc. GST)
Temporarily out of stock
Better World
ABB, XT4S MCCB 4P 63A, Fixed Mount
  • RS Stock No. 236-6781
  • Mfr. Part No. 1SDA068507R1 XT4S 160 Ekip LSIG 63A FF
Each
TWD75,993.00(exc. GST)
Temporarily out of stock
Schneider Electric MCCB
  • RS Stock No. 178-7999
  • Mfr. Part No. LV426900
Each
TWD11,585.00(exc. GST)
Temporarily out of stock
Legrand Circuit Breaker - 4 Pole 440V Voltage Rating Screw Mount, 60A Current Rating
  • RS Stock No. 255-2316
  • Mfr. Part No. 401013
Each
TWD26,170.00(exc. GST)
Temporarily out of stock
Eaton MCB, 3P, 13A Curve D, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 240-562
  • Mfr. Part No. 101348 PLI-D13/3N
Each
TWD6,322.00(exc. GST)
Temporarily out of stock
Siemens SENTRON 5SJ4160 MCB, 1P, 60A Curve D, 400V AC, 60V DC, 10 kA Breaking Capacity
  • RS Stock No. 299-951
  • Mfr. Part No. 5SJ4160-8HG41
Each
TWD5,172.00(exc. GST)
Temporarily out of stock
Better World
Siemens SENTRON 5SY7 MCB, 4P, 16A Curve C
  • RS Stock No. 216-5939
  • Mfr. Part No. 5SY7416-7
Each
TWD6,963.00(exc. GST)
In Stock
Lovato ModuLo P1MB MCB, 2P, 4A Curve C, 230V AC, 80V DC, 10 kA Breaking Capacity
  • RS Stock No. 825-5719
  • Mfr. Part No. P1MB2PC04
Each
TWD2,208.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric Horizontal Distribution Busbar Trunking, 3m, 250A, KS Series
  • RS Stock No. 219-8915
  • Mfr. Part No. KSA250ED43012
Each
TWD49,279.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 150A, Fixed Mount
  • RS Stock No. 260-7970
  • Mfr. Part No. C25R3MA150
Each
TWD87,271.00(exc. GST)
Temporarily out of stock
Siemens SENTRON Wire Connector for use with 3VA15/25 1000
  • RS Stock No. 269-7234
  • Mfr. Part No. 3VA9604-0JC44
Each (In a Pack of 4)
TWD8,382.50(exc. GST)
In Stock
Better World
Siemens SENTRON 5SV6016 Fire Safety Circuit Breaker, 2P, 6A Curve B, 230V AC, 6 kA Breaking Capacity
  • RS Stock No. 187-5253
  • Mfr. Part No. 5SV6016-6KK06
Each
TWD7,475.00(exc. GST)
Temporarily out of stock
HENSEL ENYSTAR Distribution Board, 125 A
  • RS Stock No. 117-315
  • Mfr. Part No. FP 1100
Each
TWD11,762.00(exc. GST)
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