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

1737 of 999+
Currently unavailable
Schneider Electric EasyPact Electronic Circuit Breaker 100A, Fixed
  • RS Stock No. 122-496
  • Mfr. Part No. LV510537
Each
TWD8,912.00(exc. GST)
Temporarily out of stock
Siemens SENTRON 5SV60 MCB, 1P + N, 32A Curve C, 230V AC, 6 kA Breaking Capacity
  • RS Stock No. 328-479
  • Mfr. Part No. 5SV6016-7KP32
Each
TWD8,851.00(exc. GST)
Temporarily out of stock
Siemens SENTRON 5SJ4105 MCB, 1P, 1A Curve C, 400V AC, 60V DC, 10 kA Breaking Capacity
  • RS Stock No. 299-721
  • Mfr. Part No. 5SJ4105-7HG42
Each
TWD2,215.00(exc. GST)
In Stock
Better World
Schneider Electric Acti 9 Acti9 iDT40T MCB, 3P, 16A Curve C, 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 191-6096
  • Mfr. Part No. A9P22716
Each
TWD5,448.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric ComPact NSX, Easy Pact CVS Insulation accessory for use with ComPact NSX, Easy Pact CVS
  • RS Stock No. 219-9407
  • Mfr. Part No. LV432578
Each
TWD1,520.00(exc. GST)
Temporarily out of stock
Eaton PFR RCCB, 25A, 4 Pole, 1mA, Type A, 230/400V ac
  • RS Stock No. 254-397
  • Mfr. Part No. 235866 PFR2-1-S/A
Each
TWD10,230.00(exc. GST)
Temporarily out of stock
Better World
Siemens SIRIUS Electronic Circuit Breaker 40A 3RV2, 3 channels , DIN Rail Mount
  • RS Stock No. 160-138
  • Mfr. Part No. 3RV2342-4FC10
Each
TWD20,803.00(exc. GST)
Temporarily out of stock
Better World
ABB, XT4N MCCB 3P 52A, Fixed Mount
  • RS Stock No. 236-6601
  • Mfr. Part No. 1SDA068116R1 XT4N 160 MA 52 FF
Each
TWD17,656.00(exc. GST)
Temporarily out of stock
Siemens SENTRON Control Wire Tap for 3VA1 400/630, 3VA2 400630
  • RS Stock No. 226-2835
  • Mfr. Part No. 3VA9480-0WB00
Each (In a Pack of 10)
TWD515.60(exc. GST)
Temporarily out of stock
Schneider Electric Acti9 A9V5 MCB, 2P, 25A, Type A, 230-415V AC
  • RS Stock No. 212-104
  • Mfr. Part No. A9V54225
Each
TWD4,760.00(exc. GST)
Temporarily out of stock
Mersen Surge Protector
  • RS Stock No. 179-3054
  • Mfr. Part No. 83120161 / STPT12-25K275V-4PM
Each
TWD26,658.00(exc. GST)
Temporarily out of stock
Siemens SENTRON 5SY8 MCB, 2P, 50A Curve D, 400V AC, 72V DC, 20 kA Breaking Capacity
  • RS Stock No. 610-463
  • Mfr. Part No. 5SY8250-8BB08
Each
TWD4,137.00(exc. GST)
Temporarily out of stock
Hager Hager NKN Circuit Breaker, 2P, 20A Curve C, 400V AC, 15 kA Breaking Capacity
  • RS Stock No. 599-794
  • Mfr. Part No. NKN220
Each
TWD5,229.00(exc. GST)
Temporarily out of stock
ABB RCBO, 50A Current Rating, 2P Poles, 30mA Trip Sensitivity
  • RS Stock No. 231-9944
  • Mfr. Part No. 2CSR255151R1505 DSE201 B50 A30
Each
TWD3,718.00(exc. GST)
Temporarily out of stock
ABB RCBO, 20A Current Rating, 2P Poles, Type K
  • RS Stock No. 237-5051
  • Mfr. Part No. 2CSR252101R1207
Each
TWD14,801.00(exc. GST)
Temporarily out of stock
Better World
Siemens 5SV3 RCCB, 63A, 2 Pole, 300mA, Type A, 230V ac
  • RS Stock No. 211-9680
  • Mfr. Part No. 5SV3616-6
Each
TWD8,168.00(exc. GST)
In Stock
Schneider Electric Controller for use with Compact NS100 → 630, Compact NS630b → 1600, Masterpact NT,
  • RS Stock No. 247-1723
  • Mfr. Part No. 29376
Each
TWD41,743.00(exc. GST)
Temporarily out of stock
Siemens SENTRON 5SY4 MCB, 4P, 16A, Type A, 400V AC, 60V DC, 20 kA Breaking Capacity
  • RS Stock No. 610-579
  • Mfr. Part No. 5SY4416-5
Each
TWD7,504.00(exc. GST)
Temporarily out of stock
Eaton xEffect FAZ MCB, 1P, 3A Curve C, 240V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 247-126
  • Mfr. Part No. 102121 FAZ-C3/1-RT
Each
TWD2,563.00(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1.25kA Ekip Touch LI, 3 channels
  • RS Stock No. 259-4100
  • Mfr. Part No. 1SDA072194R1
Each
TWD220,293.00(exc. GST)
1
1737
1794
Results per page

Related links