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

201 of 999+
Better World
Siemens Sentron 5SY4 MCB, 1+N, 50A Curve B, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 124-3217
  • Mfr. Part No. 5SY4550-6
Each
TWD2,820.00(exc. GST)
Phoenix Contact CM 2-PA-VAL-MS Adapter for use with VAL-MS
  • RS Stock No. 131-465
  • Mfr. Part No. 2905265
Each
TWD37,975.00(exc. GST)
Better World
ABB, XT2V MCCB 4P 50A, Fixed Mount
  • RS Stock No. 236-7446
  • Mfr. Part No. 1SDA067708R1 XT2V 160 TMA 50A FF
Each
TWD39,969.00(exc. GST)
Better World
Siemens RCBO, 6A Current Rating, 2P Poles, 30mA Trip Sensitivity, SENTRON Range
  • RS Stock No. 211-9607
  • Mfr. Part No. 5SU1354-4KK06
Each
TWD8,368.00(exc. GST)
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 160A, Breaking Capacity 55 kA, DIN Rail Mount
  • RS Stock No. 271-9785
  • Mfr. Part No. 3VA1116-5FD42-0AA0
Each
TWD45,338.00(exc. GST)
Schurter TA36 Rocker Circuit Breaker - TA36 2 Pole 60 V dc, 277 V ac Voltage Rating, 15A Current Rating
  • RS Stock No. 221-5609
  • Mfr. Part No. 3-128-217
1 Box of 10
TWD6,134.00(exc. GST)
ABB Emax2 Electronic Circuit Breaker 2kA 1SDA07, 3 channels
  • RS Stock No. 259-4312
  • Mfr. Part No. 1SDA072456R1
Each
TWD511,138.00(exc. GST)
Schneider Electric, PowerPact Circuit breaker 3P 200A, Breaking Capacity 65 kA, DIN Rail Mount
  • RS Stock No. 358-358
  • Mfr. Part No. NJGF36200TW
Each
TWD132,734.00(exc. GST)
Schneider Electric, ComPacT MCCB 4P 100A, Fixed Mount
  • RS Stock No. 260-7980
  • Mfr. Part No. C25R45E100
Each
TWD154,604.00(exc. GST)
Schneider Electric Acti9 1 Phase Distribution Board, 18 Way, 125 A
  • RS Stock No. 339-613
  • Mfr. Part No. SEA9APN1016MS
Each
TWD12,847.00(exc. GST)
Siemens 230V ac Undervoltage Release Circuit Trip for use with 3RV2 Series Circuit Breakers
  • RS Stock No. 706-1967
  • Mfr. Part No. 3RV2902-2AP0
Each
TWD2,795.00(exc. GST)
Better World
Siemens, SENTRON MCCB 4P 400A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 249-774
  • Mfr. Part No. 3VA6440-7JT41-0AA0
Each
TWD225,672.00(exc. GST)
Phoenix Contact 2 Phase Surge Protector, 50kA, DIN Rail Mount
  • RS Stock No. 207-2702
  • Mfr. Part No. 2905342
Each
TWD8,284.00(exc. GST)
Better World
Siemens RCBO, 100A Current Rating, 4P Poles, 30mA Trip Sensitivity, Type D, Sentron Range
  • RS Stock No. 243-6225
  • Mfr. Part No. 5SU1374-8DK81
Each
TWD185,877.00(exc. GST)
Better World
Schneider Electric, ComPacT NSX MCCB 4P 160A, Fixed Mount
  • RS Stock No. 254-6341
  • Mfr. Part No. C16B42D160
Each
TWD54,704.00(exc. GST)
Schneider Electric, ComPacT New Generation MCCB 3P 80A, Fixed Mount
  • RS Stock No. 260-7780
  • Mfr. Part No. C16H3TM080
Each
TWD43,211.00(exc. GST)
Eaton Three Phase Surge Protector, 12.5kA, 1.5kV, DIN Rail Mount
  • RS Stock No. 120-838
  • Mfr. Part No. 158330 SPBT12-280/3
Each
TWD20,762.00(exc. GST)
Siemens N 120 Power Supply, 29V dc dc Input, 640mA Output
  • RS Stock No. 287-8577
  • Mfr. Part No. N 120/02 / 5WG1120-1AB02
Each
TWD3,605.00(exc. GST)
ABB SU200 M MCB, 4P, 4A Curve C, 480V AC, 15 kA Breaking Capacity
  • RS Stock No. 200-692
  • Mfr. Part No. 2CDS274337R0044
Each
TWD17,289.00(exc. GST)
Better World
Schneider Electric Cable Connector for use with Compact Nsx, Compact Nsx Dc
  • RS Stock No. 221-1247
  • Mfr. Part No. LV432523
Each
TWD1,450.00(exc. GST)
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