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

124 of 999+
In Stock
Siemens SENTRON Auxiliary Switch Kit for use with 3VA1 and 3VA20 up → 3VA25
  • RS Stock No. 210-9426
  • Mfr. Part No. 3VA9988-0AA13
Each
TWD2,390.00(exc. GST)
In Stock
Siemens Sentron Trip alarm switch for use with 3VA Series Circuit Breaker
  • RS Stock No. 874-4512
  • Mfr. Part No. 3VA9988-0AB11
Each
TWD1,892.00(exc. GST)
In Stock
ABB Tmax XT Motor Operator for use with XT2, XT4
  • RS Stock No. 237-6087
  • Mfr. Part No. 1SDA066469R1 MOE-E XT2-XT4 24VDC
Each
TWD27,540.00(exc. GST)
In Stock
Schneider Electric Adapter for use with ComPact NS630b → 1600, MasterPact NT Circuit Breaker
  • RS Stock No. 247-1852
  • Mfr. Part No. 33643
Each
TWD19,285.00(exc. GST)
Temporarily out of stock
Phoenix Contact 3 Phase Surge Protector, 40kA, DIN Rail Mount
  • RS Stock No. 207-2706
  • Mfr. Part No. 2905354
Each
TWD16,485.00(exc. GST)
In Stock
ABB 4 Way Plastic Consumer Unit, 63A, IP65 Mistral65
  • RS Stock No. 811-1880
  • Mfr. Part No. 1SL1200A00 65P04X12
Each
TWD914.00(exc. GST)
In Stock
Better World
Siemens Sentron 5SY4 MCB, 2P, 2A Curve D, 440V AC, 10 kA Breaking Capacity
  • RS Stock No. 772-1287
  • Mfr. Part No. 5SY4202-8
Each
TWD2,573.00(exc. GST)
Temporarily out of stock
SENTRON Plug In Unit for use with 3VA63/64 Series
  • RS Stock No. 263-937
  • Mfr. Part No. 3VA9343-0KP10
1 Kit
TWD18,207.00(exc. GST)
In Stock
ETA Thermal Circuit Breaker - 3120-N 2 Pole 50 V DC, 240 V AC Voltage Rating, 5A Current Rating
  • RS Stock No. 210-2056
  • Mfr. Part No. 3120-N32F-H7T1-SGRD-5A
Each
TWD1,266.00(exc. GST)
Temporarily out of stock
TE Connectivity Thermal Circuit Breaker - W31 Single Pole 50 V dc, 240V ac Voltage Rating, 7.5A Current Rating
  • RS Stock No. 782-8108
  • Mfr. Part No. W31-X2M1G-7.50
Each
TWD1,891.00(exc. GST)
In Stock
Schurter Thermal Circuit Breaker - T11 Single Pole 240V ac Voltage Rating, 8A Current Rating
  • RS Stock No. 284-5984
  • Mfr. Part No. 4400.0029
Each
TWD352.00(exc. GST)
In Stock
ETA Thermal Circuit Breaker - 1180 Single Pole 250V Voltage Rating DIN Rail Mount, 4A Current Rating
  • RS Stock No. 458-8712
  • Mfr. Part No. 1180-01-4A
Each
TWD626.00(exc. GST)
Temporarily out of stock
Schurter Thermal Circuit Breaker - T12 Single Pole 240V ac Voltage Rating, 2A Current Rating
  • RS Stock No. 284-6072
  • Mfr. Part No. 4410.0126
Each
TWD831.00(exc. GST)
Temporarily out of stock
Phoenix Contact Thermal Circuit Breaker - TMC M1 Single Pole 65 V dc, 250V ac Voltage Rating DIN Rail Mount, 8A
  • RS Stock No. 801-7043
  • Mfr. Part No. 0914510
Each
TWD2,628.00(exc. GST)
In Stock
Phoenix Contact Thermomagnetic Device Circuit Breaker Thermal Circuit Breaker - CB Single Pole 50V dc Voltage Rating,
  • RS Stock No. 207-2692
  • Mfr. Part No. 2800857
Each
TWD1,494.00(exc. GST)
In Stock
Phoenix Contact Thermomagnetic Device Circuit Breaker Thermal Circuit Breaker - CB 2 Pole 80V dc Voltage Rating, 4A
  • RS Stock No. 212-8796
  • Mfr. Part No. 2800883
Each
TWD2,990.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric, ComPacT NSX MCCB 4P 50A, Fixed Mount
  • RS Stock No. 254-6313
  • Mfr. Part No. C11E44V050L
Each
TWD58,438.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 100A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 271-9673
  • Mfr. Part No. 3VA11105FE460AA0
Each
TWD27,361.00(exc. GST)
In Stock
Better World
Schneider Electric TeSys Thermal Circuit Breaker - TeSyS GV 3 Pole 690V ac Voltage Rating, 115A Current Rating
  • RS Stock No. 175-1496
  • Mfr. Part No. GV4P115B
Each
TWD15,263.00(exc. GST)
In Stock
Phoenix Contact Thermal Circuit Breaker - Single Pole 250V ac Voltage Rating On Base Element, 20A Current Rating
  • RS Stock No. 267-1716
  • Mfr. Part No. 1324401
Each
TWD626.00(exc. GST)
1
124
1794
Results per page

Related links