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

248 of 999+
Temporarily out of stock
Eaton Surge Protector, 12.5kA, 1.5kV, DIN Rail Mount
  • RS Stock No. 246-551
  • Mfr. Part No. 184750 SPBT12-280-3+NPE50
Each
TWD23,295.00(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 630A 1SDA07, 4 channels
  • RS Stock No. 259-4480
  • Mfr. Part No. 1SDA072688R1
Each
TWD280,576.00(exc. GST)
Temporarily out of stock
ABB RCBO, 10A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type B, System Pro M Compact Range
  • RS Stock No. 181-4366
  • Mfr. Part No. 2CSA255103R1105 DS-ARC1 B10 A30
Each
TWD11,418.00(exc. GST)
Temporarily out of stock
HENSEL ENYSTAR Distribution Board, 63 A
  • RS Stock No. 116-999
  • Mfr. Part No. KV 1504
Each
TWD1,597.00(exc. GST)
Temporarily out of stock
ABB S804N MCB, 4P, 50A Curve C, 690V AC, 36 kA Breaking Capacity
  • RS Stock No. 141-105
  • Mfr. Part No. 2CCS894001R0504
Each
TWD27,174.00(exc. GST)
Temporarily out of stock
ABB SMISSLINE TP MCB, 3P, 13A Curve D, 400V AC
  • RS Stock No. 246-2636
  • Mfr. Part No. 2CCS573001R0131
Each
TWD5,195.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 320A, Fixed Mount
  • RS Stock No. 260-8104
  • Mfr. Part No. C40F4TM320D
Each
TWD163,195.00(exc. GST)
Temporarily out of stock
Schneider Electric, PowerPact Circuit breaker 4P 125A, Breaking Capacity 18 kA, DIN Rail Mount
  • RS Stock No. 358-210
  • Mfr. Part No. BDL46125LU
Each
TWD68,652.00(exc. GST)
In Stock
Better World
Schneider Electric, PowerLogic, 200A, Energy Sensor, 3VA, Wireless
  • RS Stock No. 256-4051
  • Mfr. Part No. A9MEM1590
Each
TWD45,718.00(exc. GST)
In Stock
Finder Busbar, 10 A - 250V
  • RS Stock No. 666-7996
  • Mfr. Part No. 093.08
Each
TWD77.00(exc. GST)
Temporarily out of stock
ABB Tmax T Sliding Contacts for use with Circuit Breaker
  • RS Stock No. 231-9289
  • Mfr. Part No. 1SDA062169R1 T7-M-X1
1 Box of 1
TWD4,277.00(exc. GST)
Temporarily out of stock
Phoenix Contact Surge Protector, DIN Rail Mount
  • RS Stock No. 265-7499
  • Mfr. Part No. 2804678
Each
TWD5,263.00(exc. GST)
In Stock
Europa EUC2P EUC MCB, 2P, 40A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 849-6566
  • Mfr. Part No. EUC2P40C
Each
TWD729.00(exc. GST)
Currently unavailable
Phoenix Contact Thermal Circuit Breaker - TCP 10/DC32V Single Pole 32V dc Voltage Rating On Base Element, 10A Current
  • RS Stock No. 652-3436
  • Mfr. Part No. 0700010
Each (In a Pack of 5)
TWD480.00(exc. GST)
Temporarily out of stock
Better World
Siemens RCBO, 20A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type B, Sentron Range
  • RS Stock No. 243-6155
  • Mfr. Part No. 5SU1324-6KX20
Each
TWD6,963.00(exc. GST)
In Stock
Eaton Eaton Moeller U-PKZ0 Undervoltage Release for use with Motor Protective Circuit Breaker
  • RS Stock No. 246-951
  • Mfr. Part No. 073137 U-PKZ0(380V50HZ)
Each
TWD1,716.00(exc. GST)
Currently unavailable
Legrand HX 2 Phase Busbar, 400V, 35.5mm Pitch
  • RS Stock No. 731-9437
  • Mfr. Part No. 4 049 38
Each
TWD778.00(exc. GST)
Temporarily out of stock
Legrand 9 Way Plastic Consumer Unit, 32A, IP44, IP66, IP67 Hypra
  • RS Stock No. 665-4593
  • Mfr. Part No. 0 598 48
Each
TWD35,734.00(exc. GST)
In Stock
Better World
Schneider Electric Multi 9 C60SP MCB, 4P, 63A Curve C, 440V AC, 15 kA Breaking Capacity
  • RS Stock No. 211-2382
  • Mfr. Part No. M9F22463
Each
TWD9,438.00(exc. GST)
Temporarily out of stock
Legrand DX3 RCD, 50A, 3+N Pole, 300mA, Type AC
  • RS Stock No. 732-0011
  • Mfr. Part No. 4 112 10
Each
TWD37,640.00(exc. GST)
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