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

36307 Products showing for Circuit Breakers

1 of 999+
In Stock
ETA 1110 Thermal Circuit Breaker - 1-Pole, Base, 16A Current Rating, 25 A, 250V ac, 50 V dc
  • RS Stock No. 417-026
  • Mfr. Part No. 1110-F112-P1M1-16A
Subtotal (1 unit)
HK$219.00
HK$219.00/unit
In Stock
Better World
ABB System Pro M Compact S200 Miniature Circuit Breaker, 2-Pole, 2A, Type C, 400V ac AC, 6 kA Breaking Capacity
  • RS Stock No. 746-7699
  • Mfr. Part No. 2CDS252001R0024 S202-C2
Subtotal (1 unit)
HK$542.20
HK$542.20/unit
Temporarily out of stock
Rittal Copper SZ SZ Busbar
  • RS Stock No. 230-4854
  • Mfr. Part No. 2364000
Subtotal (1 unit)
HK$1,029.90
HK$1,029.90/unit
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 3-Pole, 63A, Type D, 12V, 133 V, 220 V, 240 V, 380 V, 415 V,
  • RS Stock No. 791-3580
  • Mfr. Part No. A9F55363
Subtotal (1 unit)
HK$1,293.00
HK$1,293.00/unit
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 3-Pole, 40A, Type D, 12V, 133 V, 220 V, 240 V, 380 V, 415 V,
  • RS Stock No. 791-3578
  • Mfr. Part No. A9F55340
Subtotal (1 unit)
HK$1,062.40
HK$1,062.40/unit
In Stock
ETA ESX10 ESX10-T Electronic Circuit Breaker 4A 24V, DIN Rail
  • RS Stock No. 210-2134
  • Mfr. Part No. ESX10-TB-101-DC24V-4A-E
Subtotal (1 unit)
HK$735.70
HK$735.70/unit
In Stock
Better World
ABB ComPact Home SH200 Miniature Circuit Breaker, 2-Pole, 6A, Type C, 440V ac AC, 6 kA Breaking Capacity
  • RS Stock No. 231-9655
  • Mfr. Part No. 2CDS212001R0064 SH202-C 6
Subtotal (1 box of 1 unit)
HK$384.30
HK$384.30/box
In Stock
RS PRO 3 Phase Industrial Surge Protector, 50 kA, 1.35 kV, DIN Rail
  • RS Stock No. 101-795
Subtotal (1 unit)
HK$3,448.60
HK$3,448.60/unit
In Stock
Better World
Schneider Electric Circuit Trip for use with Acti 9 Isobar A Type Distribution Boards, Acti9 Isobar B Type Distribution
  • RS Stock No. 134-6005
  • Mfr. Part No. SEA9TB1001
Subtotal (1 unit)
HK$160.69
HK$160.69/unit
In Stock
Schneider Electric Multi9 Multi9 Miniature Circuit Breaker, 2-Pole, 8A, Type D, 240V ac AC, 125 V dc DC, 14 kA Breaking
  • RS Stock No. 288-1399
  • Mfr. Part No. M9F23208
Subtotal (1 unit)
HK$1,848.40
HK$1,848.40/unit
In Stock
Better World
Schneider Electric, ComPact, ComPacT NSX Molded Case Circuit Breaker 4-Pole 250A, Breaking Capacity 25 kA
  • RS Stock No. 260-7867
  • Mfr. Part No. C25B4
Subtotal (1 unit)
HK$9,216.55
HK$9,216.55/unit
In Stock
Eaton PXF-A Series Residual Current Circuit Breaker, 16A, 1-Pole, 30 mA, Type A, 500 A 230V ac
  • RS Stock No. 490-040
  • Mfr. Part No. 236730 PXF-16/2/003-A
Subtotal (1 unit)
HK$946.60
HK$946.60/unit
Temporarily out of stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 2-Pole, 50A, Type D, 12V, 133 V, 220 V, 240 V, 380 V, 415 V,
  • RS Stock No. 791-3534
  • Mfr. Part No. A9F55250
Subtotal (1 unit)
HK$862.80
HK$862.80/unit
In Stock
TE Connectivity 0 to +60 °C W54 Thermal Circuit Breaker - 1-Pole, Direct, 15A Current Rating, 1000 A, 250V ac, 50 V dc
  • RS Stock No. 782-7975
  • Mfr. Part No. W54-XB1A4A10-15
Subtotal (1 unit)
HK$45.70
HK$45.70/unit
Stocked by manufacturer
Siemens 5SM2323 Series Residual Current Circuit Breaker, 40A, 2-Pole, 30 mA, Type AC 230V ac
  • RS Stock No. 231-8299
  • Mfr. Part No. 5SM2323-0
Subtotal (1 unit)
HK$1,001.10
HK$1,001.10/unit
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 3-Pole, 63A, Type B, 12V, 133 V, 220 V, 240 V, 380 V, 415 V,
  • RS Stock No. 791-3243
  • Mfr. Part No. A9F53363
Subtotal (1 unit)
HK$1,215.90
HK$1,215.90/unit
In Stock
Eaton xEffect xEffect Miniature Circuit Breaker, 3-Pole, 2A, Type B, 400V ac AC, 6 kA Breaking Capacity
  • RS Stock No. 230-0890
  • Mfr. Part No. 177580 FAZ6-B2/3
Subtotal (1 unit)
HK$949.90
HK$949.90/unit
In Stock
Schneider Electric Busbar Trunking Blanking Plate, Canalis Series
  • RS Stock No. 219-8883
  • Mfr. Part No. KBC16ZB1
Subtotal (1 pack of 10 units)
HK$661.70
HK$66.17/unit
In Stock
Eaton xEffect FAZ Miniature Circuit Breaker, 1-Pole, 10A, Type C, 240V ac AC, 48 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 922-7087
  • Mfr. Part No. 278670 FAZ-C10/1N
Subtotal (1 unit)
HK$541.30
HK$541.30/unit
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 1-Pole, 20A, Type C, 240V ac AC, 48 V dc DC, 10 kA Breaking
  • RS Stock No. 791-3307
  • Mfr. Part No. A9F54120
Subtotal (1 unit)
HK$219.80
HK$219.80/unit
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