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

35885 Products showing for Circuit Breakers

9 of 999+
Eaton RCCB, 40A, 4 Pole, 30mA, Type B, 240/415V ac
  • RS Stock No. 183-3547
  • Mfr. Part No. 167893 FRCDM-40/4/003-G/B
Each
TWD26,498.00(exc. GST)
Altech Thermal Circuit Breaker - V-EA 2 Pole 277V Voltage Rating DIN Rail Mount, 5A Current Rating
  • RS Stock No. 899-1806
  • Mfr. Part No. 2E5UM
Each
TWD1,059.00(exc. GST)
Better World
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 25 kA
  • RS Stock No. 209-6960
  • Mfr. Part No. 3VA1110-3ED32-0AA0
Each
TWD16,180.00(exc. GST)
Better World
Siemens, SENTRON MCCB 3P 250A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 874-4402
  • Mfr. Part No. 3VA2225-5HL32-0AA0
Each
TWD34,738.00(exc. GST)
Better World
Schneider Electric Acti 9 A9N1 MCB, 4P, 80A Curve B
  • RS Stock No. 221-0885
  • Mfr. Part No. A9N18435
Each
TWD21,392.00(exc. GST)
Better World
Schneider Electric Multi 9 MCB, 1P, 4A Curve C, 10 kA Breaking Capacity
  • RS Stock No. 219-9149
  • Mfr. Part No. M9F42104
Each
TWD4,548.00(exc. GST)
Better World
Schneider Electric Multi 9 MCB, 2P, 16A Curve C, 10 kA Breaking Capacity
  • RS Stock No. 219-9128
  • Mfr. Part No. M9F22216
Each
TWD5,155.00(exc. GST)
Better World
Siemens SENTRON 3VA1 MCB, 3P, 125A
  • RS Stock No. 224-7796
  • Mfr. Part No. 3VA1112-1AA32-0AA0
Each
TWD18,398.00(exc. GST)
Schneider Electric Multi 9 MCB, 1P, 4A Curve C, 10 kA Breaking Capacity
  • RS Stock No. 219-9174
  • Mfr. Part No. M9U21104
Each
TWD5,188.00(exc. GST)
Siemens SENTRON 5SJ4 MCB, 1P, 13A Curve B, 120V AC, 60V DC, 14 kA Breaking Capacity
  • RS Stock No. 212-8998
  • Mfr. Part No. 5SJ4113-6HG40
Each
TWD2,088.00(exc. GST)
Better World
Siemens Sentron 5SY4 MCB, 4P, 16A Curve B, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 124-3196
  • Mfr. Part No. 5SY4416-6
Each
TWD3,351.00(exc. GST)
Better World
Siemens Sentron 5SY4 MCB, 1+N, 40A Curve B, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 124-3215
  • Mfr. Part No. 5SY4540-6
Each
TWD2,637.00(exc. GST)
Better World
Schneider Electric Multi 9 C60SP MCB, 3P, 20A Curve B, 440V AC, 15 kA Breaking Capacity
  • RS Stock No. 211-2344
  • Mfr. Part No. M9F21320
Each
TWD6,138.00(exc. GST)
ETA Thermal Circuit Breaker - 1180 Single Pole 250V Voltage Rating DIN Rail Mount, 2A Current Rating
  • RS Stock No. 458-8683
  • Mfr. Part No. 1180-01-2A
Each
TWD754.00(exc. GST)
Better World
Schneider Electric Multi 9 C60SP MCB, 1P, 1A Curve B, 415V AC, 60V DC, 20 kA Breaking Capacity
  • RS Stock No. 211-2326
  • Mfr. Part No. M9F21101
Each
TWD1,742.00(exc. GST)
Siemens SENTRON 5SJ4 MCB, 1P, 10A Curve C, 14 kA Breaking Capacity
  • RS Stock No. 202-7071
  • Mfr. Part No. 5SJ4110-7HG40
Each
TWD2,085.00(exc. GST)
Siemens SENTRON 5SJ4 MCB, 1P, 6A Curve C, 400V AC, 60V DC, 10 kA Breaking Capacity
  • RS Stock No. 212-8928
  • Mfr. Part No. 5SJ4106-7HG42
Each
TWD2,227.00(exc. GST)
Better World
Schneider Electric Multi 9 MCB, 1P, 6A Curve C, 10 kA Breaking Capacity
  • RS Stock No. 219-9150
  • Mfr. Part No. M9F42106
Each
TWD3,630.00(exc. GST)
Better World
Siemens SENTRON 5SY4 MCB, 1+N, 13A Curve C, 230V AC, 72V DC, 5 kA Breaking Capacity
  • RS Stock No. 209-6664
  • Mfr. Part No. 5SY4513-7
Each
TWD3,439.00(exc. GST)
Better World
Schneider Electric Multi 9 C60SP MCB, 3P, 2A Curve C, 440V AC, 15 kA Breaking Capacity
  • RS Stock No. 211-2372
  • Mfr. Part No. M9F22302
Each
TWD5,079.00(exc. GST)
Results per page
1
9
1795