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

245 of 999+
Temporarily out of stock
Eaton Eaton Moeller NZM Undervoltage Release for use with PXR20(25) NZM2(-4), PXR20(25) NZM3(-4)
  • RS Stock No. 242-979
  • Mfr. Part No. 189725 NZM2/3-XU2A24DC
Each
TWD7,586.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric Busbar Feed Unit, Canalis KBB Series
  • RS Stock No. 211-0375
  • Mfr. Part No. KBB40ABD4W
Each
TWD2,508.00(exc. GST)
In Stock
Eaton MCB, 1+N, 32A Curve C
  • RS Stock No. 230-1081
  • Mfr. Part No. 264749 PLG4-C32/1N
Each
TWD419.00(exc. GST)
Temporarily out of stock
Contactum 12 Way Steel Consumer Unit, 100A Defender
  • RS Stock No. 184-9146
  • Mfr. Part No. DDS12188SPMS
Each
TWD9,387.00(exc. GST)
Temporarily out of stock
Schneider Electric Acti9 1 Phase Distribution Board, 16 Way, 125 A
  • RS Stock No. 244-931
  • Mfr. Part No. SE125A16
Each
TWD8,658.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric Horizontal Distribution Busbar Trunking, 3m, 400A, KS Series
  • RS Stock No. 219-8921
  • Mfr. Part No. KSA400ED4306
Each
TWD90,749.00(exc. GST)
Temporarily out of stock
Eaton xEffect RCCB, 40A, 4 Pole, 100mA, Type B, 240V ac
  • RS Stock No. 246-640
  • Mfr. Part No. 187804 FRCMM-40/4/01-B
Each
TWD32,442.00(exc. GST)
Temporarily out of stock
Contactum 14 Way Steel Consumer Unit, 80A Defender
  • RS Stock No. 184-9136
  • Mfr. Part No. DR148MS
Each
TWD4,116.00(exc. GST)
Currently unavailable
Schneider Electric EasyPact Electronic Circuit Breaker 500A, Fixed
  • RS Stock No. 122-335
  • Mfr. Part No. LV563554
Each
TWD19,069.00(exc. GST)
Temporarily out of stock
Contactum 14 Way Steel Consumer Unit, 100A Defender
  • RS Stock No. 184-9128
  • Mfr. Part No. DDS14188MS
Each
TWD6,286.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric Horizontal Distribution Busbar Trunking, 2m, 1000A, Canalis KS Series
  • RS Stock No. 211-0447
  • Mfr. Part No. KSA1000ED4206
Each
TWD70,442.00(exc. GST)
In Stock
Eaton xEffect MCB, 1+N, 20A Curve B, 240V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 922-7061
  • Mfr. Part No. 278649 FAZ-B20/1N
Each
TWD2,369.00(exc. GST)
In Stock
ABB System Pro M Compact S200M MCB, 3P, 6A Curve B, 440V AC, 10 kA Breaking Capacity
  • RS Stock No. 535-6061
  • Mfr. Part No. 2CDS273001R0065 S203M-B6
Each
TWD3,050.00(exc. GST)
In Stock
Better World
Siemens Sentron 5SY4 MCB, 2P, 1A Curve C, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 124-3161
  • Mfr. Part No. 5SY4201-7
Each
TWD4,026.00(exc. GST)
In Stock
Hager NFN MCB, 2P, 0.5A Curve C, 240 → 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 144-4706
  • Mfr. Part No. NFN200
Each
TWD5,509.00(exc. GST)
In Stock
Eaton PFIM RCD, 16A, 2 Pole, 30mA, Type A, 230V ac
  • RS Stock No. 922-8648
  • Mfr. Part No. 235423 PFIM-16/2/003-A-MW
Each
TWD5,542.00(exc. GST)
In Stock
Better World
Schneider Electric Multi 9 C60SP MCB, 3P, 10A Curve D, 440V AC, 15 kA Breaking Capacity
  • RS Stock No. 211-2401
  • Mfr. Part No. M9F23310
Each
TWD3,765.00(exc. GST)
Temporarily out of stock
Better World
ABB, XT2N MCCB 3P 32A, Fixed Mount
  • RS Stock No. 236-7457
  • Mfr. Part No. 1SDA067719R1 XT2N 160 TMG 32A FF
Each
TWD13,114.00(exc. GST)
In Stock
TE Connectivity Busbar
  • RS Stock No. 420-366
  • Mfr. Part No. RT170P1 1860211-1
Each
TWD46.00(exc. GST)
Last RS stock
Schneider Electric Acti 9 Cover for use with ARA, IC60, iDPN Vigi, iLD, iSW, ISW-NA, RCA, Reflex iC60
  • RS Stock No. 791-2783
  • Mfr. Part No. A9A26975
Each (In a Pack of 2)
TWD388.50(exc. GST)
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