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

231 of 999+
Temporarily out of stock
Better World
Siemens RCBO, 10A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type C, Sentron Range
  • RS Stock No. 243-6173
  • Mfr. Part No. 5SU1324-7FR10
Each
TWD13,948.00(exc. GST)
Temporarily out of stock
Better World
ABB, XT2V MCCB 4P 125A, Fixed Mount
  • RS Stock No. 236-7450
  • Mfr. Part No. 1SDA067712R1 XT2V 160 TMA 125A 3P+N FF
Each
TWD45,331.00(exc. GST)
In Stock
ABB Tmax XT Undervoltage Release for use with XT1, XT4
  • RS Stock No. 237-6057
  • Mfr. Part No. 1SDA066392R1 UVR XT1..4 220-240VAC/DC
Each
TWD5,145.00(exc. GST)
In Stock
Phoenix Contact CAPAROC Electronic Circuit Breaker 10A 12 → 24V E1 12-24DC, 1 channels , Plug-On
  • RS Stock No. 269-7941
  • Mfr. Part No. 1115649
Each
TWD1,806.00(exc. GST)
Temporarily out of stock
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 4P 40A, Breaking Capacity 2.5 kA
  • RS Stock No. 245-527
  • Mfr. Part No. 3VA6140-8HL41-0AA0
Each
TWD56,322.00(exc. GST)
In Stock
ABB Busbar Cover
  • RS Stock No. 711-6562
  • Mfr. Part No. 1SAM201907R1102 S1-M2-25
Each
TWD552.00(exc. GST)
In Stock
ABB Tmax XT Rotary Handle for use with Circuit Breaker
  • RS Stock No. 236-6853
  • Mfr. Part No. 1SDA069053R1 RHD XT2-XT4 F/P STAND
Each
TWD3,578.00(exc. GST)
Temporarily out of stock
Eaton xEffect FAZ MCB, 2P, 1A Curve B, 415V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 247-664
  • Mfr. Part No. 132750 FAZ-B1/2-RT
Each
TWD4,368.00(exc. GST)
In Stock
Better World
Schneider Electric Multi 9 C60SP MCB, 2P, 20A Curve D, 440V AC, 125V DC, 15 kA Breaking Capacity
  • RS Stock No. 211-2397
  • Mfr. Part No. M9F23220
Each
TWD2,497.00(exc. GST)
In Stock
ETA Thermal Circuit Breaker - 3120-N 5 Pole 50 V DC, 240 V AC Voltage Rating, 3A Current Rating
  • RS Stock No. 210-2090
  • Mfr. Part No. 3120-N551-H7T1-W02D-3A
Each
TWD957.00(exc. GST)
Temporarily out of stock
Schneider Electric Compact Nsx Dc Torque Limitng Screws for use with Compact Nsx100/160/250
  • RS Stock No. 221-1240
  • Mfr. Part No. LV432513
Each
TWD2,409.00(exc. GST)
Temporarily out of stock
Schurter Thermal Circuit Breaker - T12 Single Pole 240V ac Voltage Rating, 12A Current Rating
  • RS Stock No. 173-9841
  • Mfr. Part No. 4410.0019
Each (In a Box of 20)
TWD829.50(exc. GST)
Temporarily out of stock
Schneider Electric MasterPacT Locking Kit for use with MasterPact NT
  • RS Stock No. 346-863
  • Mfr. Part No. 64918
Each
TWD11,696.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT NSX Circuit breaker 2P 30A, Breaking Capacity 85 KA
  • RS Stock No. 119-603
  • Mfr. Part No. C10M2TM030
Each
TWD23,280.00(exc. GST)
Temporarily out of stock
Eaton RCBO, 25A Current Rating, 2P Poles, 100mA Trip Sensitivity, Type A, Type D, FRBdM Range
  • RS Stock No. 121-245
  • Mfr. Part No. 168227 FRBDM-D25/2/01-G/A
Each
TWD8,412.00(exc. GST)
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)
In Stock
Eaton RCD, 63A, 2 Pole, 300mA, Type AC
  • RS Stock No. 922-8610
  • Mfr. Part No. 235400 PFIM-63/2/03-MW
Each
TWD5,380.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 85 kA
  • RS Stock No. 209-7037
  • Mfr. Part No. 3VA2010-6HL36-0AA0
Each
TWD31,206.00(exc. GST)
Temporarily out of stock
Siemens SENTRON 2 Phase Busbar, 27mm Pitch
  • RS Stock No. 187-5165
  • Mfr. Part No. 5ST3611
Each
TWD369.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 320A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 270-3482
  • Mfr. Part No. 3VA1332-5GF42-0AA0
Each
TWD182,274.00(exc. GST)
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