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

38681 Products showing for Circuit Breakers

1 of 999+
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 4-Pole, 32A, Type D, 12V, 133 V, 220 V, 240 V, 380 V, 415 V,
  • RS Stock No. 790-8737
  • Mfr. Part No. A9F55432
Subtotal (1 unit)
HK$2,149.16
HK$2,149.16/unit
In Stock
ABB RCBO, 16A Current Rating, 2-Pole, 30 mA Trip Sensitivity, Type A, DS301C Range, 2CSR255163R Range
  • RS Stock No. 707-312
  • Mfr. Part No. 2CSR255163R1165
Subtotal (1 unit)
HK$1,161.75
HK$1,161.75/unit
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 4-Pole, 63A, Type D, 12V, 133 V, 220 V, 240 V, 380 V, 415 V,
  • RS Stock No. 790-8743
  • Mfr. Part No. A9F55463
Subtotal (1 unit)
HK$1,759.50
HK$1,759.50/unit
Stocked by manufacturer
RS Better World
Siemens, SENTRON, 3VA1 Molded Case Circuit Breaker 4-Pole 100A, Breaking Capacity 55 kA
  • RS Stock No. 209-6751
  • Mfr. Part No. 3VA1110-5GE42-0AA0
Subtotal (1 unit)
HK$7,525.50
HK$7,525.50/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 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
Phoenix Contact Surge Protection Device, DIN Rail
  • RS Stock No. 135-7135
  • Mfr. Part No. 2908729
Subtotal (1 unit)
HK$14.60
HK$14.60/unit
In Stock
Phoenix Contact Surge Protection Base Mounting Base
  • RS Stock No. 768-1195
  • Mfr. Part No. 2839363
Subtotal (1 unit)
HK$909.80
HK$909.80/unit
In Stock
RS Better World
Siemens SENTRON 5SY Miniature Circuit Breaker, 2-Pole, 16A, Type B, 400V ac AC, 10 kA Breaking Capacity
  • RS Stock No. 232-2319
  • Mfr. Part No. 5SY6216-6
Subtotal (1 unit)
HK$454.50
HK$454.50/unit
In Stock
ABB Tmax XT Auxiliary Contact for use with Circuit Breaker
  • RS Stock No. 232-0179
  • Mfr. Part No. 1SDA066422R1 AUX 250V XT1..XT4
Subtotal (1 unit)
HK$288.80
HK$288.80/unit
In Stock
Eaton xEffect - FBSmV Series Residual Current Circuit Breaker, 63A, 2-Pole, 30 mA, Type A, 10 kA 415V ac
  • RS Stock No. 123-187
  • Mfr. Part No. 170208 FBSMV-63/2/003-A
Subtotal (1 unit)
HK$1,999.80
HK$1,999.80/unit
In Stock
Schneider Electric Multi9 Acti9 C60HDC Miniature Circuit Breaker, 2-Pole, 4A, Type C, 500 V dc DC, 20 kA Breaking
  • RS Stock No. 211-2471
  • Mfr. Part No. M9U21204
Subtotal (1 unit)
HK$3,151.70
HK$3,151.70/unit
Temporarily out of stock
RS PRO RCBO, 32A Current Rating, 1-Pole, 30 mA Trip Sensitivity, Type B, RSKO Range, RCBO Range
  • RS Stock No. 756-207
Subtotal (1 unit)
HK$329.72
HK$329.72/unit
Temporarily out of stock
Siemens Undervoltage Release for use with 3VA1 and 3VA20 up to 3VA25
  • RS Stock No. 218-1871
  • Mfr. Part No. 3VA9908-0BB26
Subtotal (1 unit)
HK$2,056.30
HK$2,056.30/unit
In Stock
Siemens SIRIUS 3RV1 3 Phase Busbar, 690 V, 63 mm Pitch
  • RS Stock No. 246-5178
  • Mfr. Part No. 3RV1915-3AB
Subtotal (1 unit)
HK$319.20
HK$319.20/unit
In Stock
Eaton Residual Current Circuit Breaker with Overload Protection, 32A Current Rating, 3-Pole, 30 mA Trip Sensitivity,
  • RS Stock No. 123-631
  • Mfr. Part No. 170773 FRBMM-C32/3/003-A
Subtotal (1 unit)
HK$1,705.90
HK$1,705.90/unit
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 2-Pole, 63A, Type D, 12V, 133 V, 220 V, 240 V, 380 V, 415 V,
  • RS Stock No. 791-3543
  • Mfr. Part No. A9F55263
Subtotal (1 unit)
HK$974.30
HK$974.30/unit
In Stock
Europa EUC2P EUC2P Miniature Circuit Breaker, 2-Pole, 1A, Type C, 400V ac AC, 10 kA Breaking Capacity
  • RS Stock No. 849-6538
  • Mfr. Part No. EUC2P1C
Subtotal (1 unit)
HK$238.10
HK$238.10/unit
Stocked by manufacturer
RS Better World
Schneider Electric, ComPact, ComPacT NSX Molded Case Circuit Breaker 3-Pole 630A, Breaking Capacity 36 kA
  • RS Stock No. 260-8197
  • Mfr. Part No. C63F3
Subtotal (1 unit)
HK$25,582.30
HK$25,582.30/unit
In Stock
ABB 24V ac/dc DIN Rail Shunt Trip for use with S800N, S800HV, S800U Series, S800S, S800C, S800PV, S800B
  • RS Stock No. 435-532
  • Mfr. Part No. 2CCS800900R0191 S800-SOR24
Subtotal (1 unit)
HK$835.40
HK$835.40/unit
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