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

56 of 999+
Better World
Schneider Electric Linergy Mounting Plate for use with Busbar
  • RS Stock No. 211-8753
  • Mfr. Part No. AK5PA211N2
Each
TWD3,882.00(exc. GST)
Eaton Eaton Moeller NZM Assembly Kit for use with N(S)3(-4), NZM3(-4), PN3(-4)
  • RS Stock No. 256-096
  • Mfr. Part No. 266628 NZM3-XHB
Each
TWD8,774.00(exc. GST)
Better World
Schneider Electric Multi 9 C60N MCB, 2P, 2A Curve C, 10 kA Breaking Capacity
  • RS Stock No. 214-2060
  • Mfr. Part No. M9F11202
Each
TWD3,836.00(exc. GST)
Hager Hager NEN Circuit Breaker, 1P, 63A Curve B, 230 → 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 599-900
  • Mfr. Part No. NEN163
Each
TWD3,802.00(exc. GST)
Better World
Siemens Sentron 5SY4 MCB, 3P, 500mA Curve C, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 622-0115
  • Mfr. Part No. 5SY4305-7
Each
TWD3,496.00(exc. GST)
Eaton xE?ect - FBHmV RCCB, 80A, 4 Pole, 500mA, Type A, 240/415V ac
  • RS Stock No. 121-124
  • Mfr. Part No. 170133 FBHMV-80/4/05-A
Each
TWD12,105.00(exc. GST)
Better World
Schneider Electric 690 V ac, 750V dc Circuit Trip for use with Compact NSX 100/160 Circuit Breakers
  • RS Stock No. 212-0234
  • Mfr. Part No. LV429153
Each
TWD10,287.00(exc. GST)
Hager ARC MCB, 25A, 3 Breaking Capacity
  • RS Stock No. 602-199
  • Mfr. Part No. ARC725F
Each
TWD9,115.00(exc. GST)
Phoenix Contact CAPAROC Busbar Connector, 24V dc
  • RS Stock No. 269-7937
  • Mfr. Part No. 1110989
Each (In a Pack of 3)
TWD804.30(exc. GST)
Better World
Siemens SENTRON 3VA1 MCB, 2P, 40A
  • RS Stock No. 224-7854
  • Mfr. Part No. 3VA1140-5ED22-0AA0
Each
TWD13,823.00(exc. GST)
Schneider Electric Resi9 Resi9 XE DM MCB, 1P, 10A Curve D, 230V AC, 3000 A Breaking Capacity
  • RS Stock No. 287-6046
  • Mfr. Part No. R9EFD610
Each
TWD1,591.00(exc. GST)
ABB System Pro M Compact S200 MCB, 3P, 80A Curve C, 440V AC, 6 kA Breaking Capacity
  • RS Stock No. 231-9680
  • Mfr. Part No. 2CDS253001R0804 S203-C80 6kA 80A
1 Box of 1
TWD6,682.00(exc. GST)
Better World
Schneider Electric TeSys Thermal Circuit Breaker - TeSyS GV 3 Pole 690V ac Voltage Rating, 7A Current Rating
  • RS Stock No. 175-1526
  • Mfr. Part No. GV4PE07S
Each
TWD26,590.00(exc. GST)
Legrand DX3 RCD, 25A, 1+N Pole, 30mA, Type AC
  • RS Stock No. 732-0023
  • Mfr. Part No. 4 115 04
Each
TWD2,884.00(exc. GST)
Better World
Siemens, SENTRON MCCB 3P 40A, Breaking Capacity 110 kA, Fixed Mount
  • RS Stock No. 270-4653
  • Mfr. Part No. 3VA2140-7HM36-0AA0
Each
TWD49,312.00(exc. GST)
ABB System Pro M Compact SU200M MCB, 2P, 10A Curve K, 440V AC, 440V DC, 15 kA Breaking Capacity
  • RS Stock No. 231-9741
  • Mfr. Part No. 2CDS272337R0427 SU202M-K10
1 Box of 1
TWD3,916.00(exc. GST)
ABB Tmax XT Trip Unit for use with Tmax XT
  • RS Stock No. 236-7319
  • Mfr. Part No. 1SDA067498R1 Ekip LS/I In=40A XT4 3p
Each
TWD17,260.00(exc. GST)
ABB High Performance S800N MCB, 2P, 100A Curve D, 400V AC, 36 kA Breaking Capacity
  • RS Stock No. 435-263
  • Mfr. Part No. 2CCG001242R0001
Each
TWD8,106.00(exc. GST)
Better World
Schneider Electric Multi 9 C60N MCB, 2P, 10A Curve C, 10 kA Breaking Capacity
  • RS Stock No. 214-2065
  • Mfr. Part No. M9F11210
Each
TWD3,465.00(exc. GST)
Siemens Sentron Trip alarm switch for use with 3VA Series Circuit Breaker
  • RS Stock No. 874-4515
  • Mfr. Part No. 3VA9988-0AB12
Each
TWD1,261.00(exc. GST)
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