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

1774 of 999+
Temporarily out of stock
Eaton IZMX/INX Terminal Kit for use with INX40…3…40F, INX40…3…40W, IZMX40…3…40F, IZMX40…3…40W
  • RS Stock No. 132-477
  • Mfr. Part No. 183978 IZMX-TV403-4000-1
Each
TWD46,325.00(exc. GST)
Temporarily out of stock
Lovato ModuLo P1MB MCB, 4P, 20A Curve B, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 825-5920
  • Mfr. Part No. P1MB4PB20
Each
TWD4,449.00(exc. GST)
Temporarily out of stock
Siemens ALPHA Distribution Board
  • RS Stock No. 272-0296
  • Mfr. Part No. 8GK1062-2KK11
Each
TWD17,818.00(exc. GST)
Temporarily out of stock
Lovato P1RD MCCB, 40A, 4 Pole, 30mA, Type A, 230 or 400V ac
  • RS Stock No. 276-5670
  • Mfr. Part No. P1RD4P40A030
Each
TWD10,717.00(exc. GST)
Temporarily out of stock
HENSEL ENYBOARD Distribution Board, 63 A
  • RS Stock No. 117-402
  • Mfr. Part No. KV 9230
Each
TWD6,638.00(exc. GST)
Temporarily out of stock
Siemens ALPHA Distribution Board
  • RS Stock No. 272-0285
  • Mfr. Part No. 8GK1061-3KK40
Each
TWD50,148.00(exc. GST)
Temporarily out of stock
ABB SMISSLINE TP S400M MCB, 2P, 16A Curve D
  • RS Stock No. 231-9559
  • Mfr. Part No. 2CCS571103R8161 S401M-D16NP
1 Box of 1
TWD3,451.00(exc. GST)
Temporarily out of stock
HENSEL ENYSTAR Distribution Board, 4 Way, 63 A
  • RS Stock No. 117-720
  • Mfr. Part No. FP VN 0411 GB
Each
TWD46,668.00(exc. GST)
Temporarily out of stock
ABB SMISSLINE Busbar for Smissline TP
  • RS Stock No. 246-2322
  • Mfr. Part No. 2CCF800234R0001
Each
TWD463.00(exc. GST)
Temporarily out of stock
Schneider Electric ComPacT New Generation Trip Unit for use with ComPacT NSX 100/160 Circuit Breakers
  • RS Stock No. 260-9382
  • Mfr. Part No. C104MG063
Each
TWD18,086.00(exc. GST)
Temporarily out of stock
Phoenix Contact Surge Protector, 800V (Volts), DIN Rail Mount
  • RS Stock No. 207-2775
  • Mfr. Part No. 2907865
Each
TWD9,099.00(exc. GST)
Temporarily out of stock
ABB RCBO, 6A Current Rating, 4P Poles, Type C
  • RS Stock No. 237-5202
  • Mfr. Part No. 2CSR274101R1064
Each
TWD15,120.00(exc. GST)
In Stock
Eaton xEffect MCB, 2P, 50A Curve C, 240 → 415V AC, 10 kA Breaking Capacity
  • RS Stock No. 847-3396
  • Mfr. Part No. 278765 FAZ-C50/2
Each
TWD2,522.00(exc. GST)
Temporarily out of stock
Phoenix Contact Thermal Circuit Breaker - CB TM2 2 Pole 240V ac Voltage Rating, 1A Current Rating
  • RS Stock No. 217-6375
  • Mfr. Part No. 2800880
Each
TWD3,087.00(exc. GST)
Temporarily out of stock
ABB S803N MCB, 3P, 6A Curve B, 690V AC, 36 kA Breaking Capacity
  • RS Stock No. 141-004
  • Mfr. Part No. 2CCS893001R0065
Each
TWD21,399.00(exc. GST)
Temporarily out of stock
HENSEL ENYMOD Distribution Board
  • RS Stock No. 117-096
  • Mfr. Part No. Mi 1448
Each
TWD19,670.00(exc. GST)
Temporarily out of stock
HENSEL ENYBOARD Distribution Board, 63 A
  • RS Stock No. 117-342
  • Mfr. Part No. KV PC 9448
Each
TWD12,664.00(exc. GST)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 1kA Ekip Hi-Touch LSI, 3 channels
  • RS Stock No. 259-3084
  • Mfr. Part No. 1SDA070938R1
Each
TWD385,341.00(exc. GST)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 1.25kA Ekip Hi-Touch LSI, 3 channels
  • RS Stock No. 259-3002
  • Mfr. Part No. 1SDA070839R1
Each
TWD361,696.00(exc. GST)
In Stock
Phoenix Contact 2 Phase Surge Protector, 5kA, DIN Rail Mount
  • RS Stock No. 201-5437
  • Mfr. Part No. 2908438
Each
TWD3,551.00(exc. GST)
1
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