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

72 of 999+
Hager CFC RCD Switch, 80A, 4 Pole, 300mA, Type AC, 230V
  • RS Stock No. 599-756
  • Mfr. Part No. CFC680F
Each
TWD17,411.00(exc. GST)
Hager Hager NQN Circuit Breaker, 3P, 25A Curve B, 415V AC, 25 kA Breaking Capacity
  • RS Stock No. 599-815
  • Mfr. Part No. NQN325
Each
TWD10,887.00(exc. GST)
Hager BDC RCCB, 125A, 4P Pole, 30mA, Type AC
  • RS Stock No. 602-057
  • Mfr. Part No. BDC480E
Each
TWD32,218.00(exc. GST)
Better World
Schneider Electric Multi 9 C60BP MCB, 1P, 30A Curve C, 415V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 211-2413
  • Mfr. Part No. M9F42130
Each
TWD2,276.00(exc. GST)
Hager CFF RCD Switch, 25A, 4 Pole, 300mA, Type F, 230 → 400V
  • RS Stock No. 599-734
  • Mfr. Part No. CFF825F
Each
TWD14,022.00(exc. GST)
Eaton xEffect RCCB, 16A, 2 Pole, 300mA, Type F, 240V ac
  • RS Stock No. 248-938
  • Mfr. Part No. 187395 FRCMM-16/2/03-S/F
Each
TWD11,307.00(exc. GST)
Phoenix Contact Surge Protector, DIN Rail Mount
  • RS Stock No. 207-2777
  • Mfr. Part No. 2907875
Each
TWD9,099.00(exc. GST)
Hager CDA RCD Switch, 40A, 2 Pole, 30mA, Type A, 230V
  • RS Stock No. 599-823
  • Mfr. Part No. CDA749F
Each
TWD4,318.00(exc. GST)
Hager Hager NSN Circuit Breaker, 3P, 16A Curve D, 415V AC, 25 kA Breaking Capacity
  • RS Stock No. 599-721
  • Mfr. Part No. NSN316
Each
TWD11,269.00(exc. GST)
Better World
Siemens SENTRON 3VA1 MCB, 1P, 80A
  • RS Stock No. 224-7882
  • Mfr. Part No. 3VA1180-3ED16-0AA0
Each
TWD7,519.00(exc. GST)
Better World
ABB System Pro M Compact S200M MCB, 2P, 6A Curve D
  • RS Stock No. 231-9724
  • Mfr. Part No. 2CDS272001R0061 S202M D 6A - 15 KA
1 Box of 1
TWD2,271.00(exc. GST)
Hager NSN MCB, 2P, 25A Curve D, 415V AC, 25 kA Breaking Capacity
  • RS Stock No. 597-954
  • Mfr. Part No. NSN225
Each
TWD8,193.00(exc. GST)
Better World
Schneider Electric Busbar Feed Unit, Canalis KS Series
  • RS Stock No. 211-0455
  • Mfr. Part No. KSA250AE4
Each
TWD12,252.00(exc. GST)
Siemens SENTRON Auxiliary Switch Kit for use with 3VA5 125
  • RS Stock No. 272-0201
  • Mfr. Part No. 3VA9137-0GX10
Each
TWD3,601.00(exc. GST)
Better World
Schneider Electric Acti 9 A9N1 MCB, 3P, 63A Curve C
  • RS Stock No. 221-0887
  • Mfr. Part No. A9N18467
Each
TWD13,960.00(exc. GST)
Better World
Siemens SENTRON 5SY4 MCB, 2P, 13A Curve D, 400V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 209-6591
  • Mfr. Part No. 5SY4213-8
Each
TWD3,095.00(exc. GST)
Eaton Eaton Moeller Series NZM Marker Label for use with N(N/O)3(-4), N(N/O)4(-4), NZM3(-4), NZM4(-4), PN3(-4)
  • RS Stock No. 254-242
  • Mfr. Part No. 231363 BPF-NZM10
1 Pack of 10
TWD2,020.00(exc. GST)
Better World
Siemens SENTRON 3VA1 MCB, 2P, 80A
  • RS Stock No. 224-7888
  • Mfr. Part No. 3VA1180-5ED22-0AA0
Each
TWD15,153.00(exc. GST)
Phoenix Contact Thermal Circuit Breaker - TMC M1 Single Pole 65 V dc, 250V ac Voltage Rating DIN Rail Mount, 3A
  • RS Stock No. 801-7034
  • Mfr. Part No. 0914471
Each
TWD2,711.00(exc. GST)
Better World
Schneider Electric Multi 9 M9F4 MCB, 1P, 20A, Type Z, 415V AC, 60V DC, 20 kA, 3 kA Breaking Capacity
  • RS Stock No. 211-2677
  • Mfr. Part No. M9F44120
Each
TWD2,119.00(exc. GST)
1
72
1794
Results per page

Related links