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

1718 of 999+
In Stock
Siemens Push Button Circuit Trip for use with Standard rail mounting
  • RS Stock No. 209-5272
  • Mfr. Part No. 5TE4820
Each
TWD2,142.00(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1.6kA 1SDA07, 3 channels
  • RS Stock No. 259-4121
  • Mfr. Part No. 1SDA072228R1
Each
TWD306,624.00(exc. GST)
Temporarily out of stock
Eaton IZMX/INX Electronic Circuit Breaker 2.5kA , 3 channels , Fixed
  • RS Stock No. 132-833
  • Mfr. Part No. 183592 IZMX40B3-P25W-1
Each
TWD818,553.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 175A, Breaking Capacity 7 kA, Fixed Mount
  • RS Stock No. 148-006
  • Mfr. Part No. 3VA5217-5EF41-0AA0
Each
TWD71,765.00(exc. GST)
Temporarily out of stock
ABB System Pro M Compact S200 M UC MCB, 3P, 10A Curve C, 400V AC, 440V DC, 10 kA Breaking Capacity
  • RS Stock No. 204-370
  • Mfr. Part No. 2CDS273061R0104
Each
TWD14,766.00(exc. GST)
Temporarily out of stock
Siemens SENTRON Control Wire Tap for use with 3VA12, 3VA20/21/22
  • RS Stock No. 161-292
  • Mfr. Part No. 3VA9280-0WC00
Each (In a Pack of 10)
TWD290.20(exc. GST)
Temporarily out of stock
Eaton xEffect MCB, 2P, 6A Curve C, 240 → 415V AC, 60V DC, 10 kA Breaking Capacity
  • RS Stock No. 847-3403
  • Mfr. Part No. 102164 FAZ-C6/2-NA
Each
TWD2,788.00(exc. GST)
In Stock
Hager Push Button Circuit Trip for use with Modular Devices
  • RS Stock No. 144-4650
  • Mfr. Part No. SVN331
Each
TWD1,687.00(exc. GST)
In Stock
Siemens SENTRON 4 Phase Busbar
  • RS Stock No. 187-5192
  • Mfr. Part No. 5ST3718
Each
TWD102.00(exc. GST)
In Stock
ABB High Performance S800N MCB, 3P, 80A Curve C, 400V AC, 36 kA Breaking Capacity
  • RS Stock No. 435-235
  • Mfr. Part No. 2CCG001232R0001
Each
TWD9,874.00(exc. GST)
Temporarily out of stock
Schneider Electric, Compact MCCB 3P 1kA, Fixed Mount
  • RS Stock No. 247-1789
  • Mfr. Part No. 33390
Each
TWD154,989.00(exc. GST)
In Stock
Legrand DX3 Circuit Breaker, 4P, 50A Curve D, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 266-1335
  • Mfr. Part No. 408122
Each
TWD22,512.00(exc. GST)
In Stock
Lovato ModuLo P1MB MCB, 2P, 32A Curve C, 230V AC, 80V DC, 10 kA Breaking Capacity
  • RS Stock No. 825-5731
  • Mfr. Part No. P1MB2PC32
Each
TWD1,563.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 400A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 270-3488
  • Mfr. Part No. 3VA1340-4FF42-0AA0
Each
TWD166,603.00(exc. GST)
Temporarily out of stock
Phoenix Contact Three Phase Surge Arrester, 40kA, = 1.5kV, DIN Rail Mount
  • RS Stock No. 249-9523
  • Mfr. Part No. 2920243
Each
TWD12,745.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 40A, Breaking Capacity 110 kA, Fixed Mount
  • RS Stock No. 270-4680
  • Mfr. Part No. 3VA2140-7MQ32-0AA0
Each
TWD63,472.00(exc. GST)
Temporarily out of stock
Eaton xEffect MCB, 2P, 10A Curve B, 240 → 415V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 922-6945
  • Mfr. Part No. 132702 FAZ-B10/2-NA
Each
TWD3,036.00(exc. GST)
Temporarily out of stock
ABB F200 RCCB, 63A, 2 Pole, 30mA, Type A, 230/400V ac
  • RS Stock No. 177-5053
  • Mfr. Part No. 2CSF202401R1630 F202 A-63/0,03 AP-R
Each
TWD9,116.00(exc. GST)
In Stock
Better World
Schneider Electric Multi 9 C60SP MCB, 3P, 40A Curve D, 440V AC, 15 kA Breaking Capacity
  • RS Stock No. 211-2406
  • Mfr. Part No. M9F23340
Each
TWD4,662.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 268-504
  • Mfr. Part No. 3VA6110-5JQ31-2AA0
Each
TWD88,506.00(exc. GST)
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