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

35852 Products showing for Circuit Breakers

7 of 999+
Better World
Siemens 5SV3 RCCB, 63A, 4 Pole, 300mA, Type B, 400V ac
  • RS Stock No. 211-9703
  • Mfr. Part No. 5SV3646-5
Each
HK$12,238.80
Phoenix Contact Thermal Circuit Breaker - TCP 0.25A Single Pole 65 V dc, 250V ac Voltage Rating, 250mA Current Rating
  • RS Stock No. 801-6895
  • Mfr. Part No. 0712123
Each
HK$128.00
Better World
Schneider Electric RCBO, 40A Current Rating, 3P+N Poles, 300mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 238-3270
  • Mfr. Part No. A9DA7740
Each
HK$5,479.54
Phoenix Contact TRABTECH Electronic Circuit breaker 3A 24V CB E1, On Base Element
  • RS Stock No. 768-1104
  • Mfr. Part No. 2800917
Each
HK$375.60
ABB System Pro M Compact S200M MCB, 3P, 32A Curve D, 400V AC, 125V DC, 10 kA Breaking Capacity
  • RS Stock No. 746-8185
  • Mfr. Part No. 2CDS273001R0321 S203M-D32
Each
HK$834.50
Better World
Schneider Electric Acti9 iID RCCB, 40A, 4 Pole, 30mA, 400V
  • RS Stock No. 218-3909
  • Mfr. Part No. A9Z51440
Each
HK$7,372.70
Better World
Schneider Electric Acti 9 iC60H MCB, 4P, 63A Curve C, 440V AC, 220 → 250V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3458
  • Mfr. Part No. A9F54463
Each
HK$1,886.70
Better World
Schneider Electric Acti 9 1 Phase Busbar, 415V ac, 18mm Pitch
  • RS Stock No. 806-7228
  • Mfr. Part No. A9XPH112
Each
HK$165.10
Better World
Schneider Electric Acti 9 Acti9 iDT40K MCB, 3P, 32A Curve C, 400V AC
  • RS Stock No. 239-9977
  • Mfr. Part No. A9P71732
Each
HK$1,136.60
Better World
Siemens, SENTRON Circuit breaker 4P 160A, DIN Rail Mount
  • RS Stock No. 224-7905
  • Mfr. Part No. 3VA1216-5GF42-0AA0
Each
HK$11,352.60
Better World
Schneider Electric Acti 9 1 Phase Busbar, 415V ac, 18mm Pitch
  • RS Stock No. 776-2711
  • Mfr. Part No. A9XPH106
Each
HK$89.10
Schneider Electric Acti 9 Cover for use with ARA, IC60, iDPN Vigi, iLD, iSW, ISW-NA, RCA, Reflex iC60
  • RS Stock No. 791-2773
  • Mfr. Part No. A9A26981
Each (In a Pack of 20)
HK$12.93
ABB S800PV MCB, 2P, 6A Curve B, 800V DC, 5 kA Breaking Capacity
  • RS Stock No. 225-5963
  • Mfr. Part No. 2CCF019643R0001 S802PV-SP6 - 5 kA
Each
HK$1,614.50
RS PRO Single Phase Industrial Surge Protector, 40kA, 0.9kV, DIN Rail Mount
  • RS Stock No. 101-798
Each
HK$706.70
ABB F200 RCCB, 40A, 4 Pole, 30mA, 400V ac
  • RS Stock No. 176-9636
  • Mfr. Part No. F204F-40/0.03
Each
HK$6,959.66
Schneider Electric Acti9 A9F MCB Mini Circuit Breaker, 2P, 16A Curve C, 500V AC, 10 kA Breaking Capacity
  • RS Stock No. 653-861
  • Mfr. Part No. A9F74216
Each
HK$910.80
ETA Thermal Circuit Breaker - 3120-N 5 Pole 50 V DC, 240 V AC Voltage Rating, 5A Current Rating
  • RS Stock No. 210-2110
  • Mfr. Part No. 3120-N554-P7T1-W02D-5A
Each
HK$266.70
ABB Front Terminal for use with XT1 Cables
  • RS Stock No. 192-0878
  • Mfr. Part No. 1SDA067152R1
Each
HK$496.88
Better World
Schneider Electric Acti 9 Acti9 iDT40N MCB, 3P, 32A Curve D, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 191-6124
  • Mfr. Part No. A9P34732
Each
HK$1,938.82
Better World
Schneider Electric Acti9 iIDK RCCB, 25A, 2 Pole, 30mA, Type AC, 220 → 240V ac
  • RS Stock No. 238-3454
  • Mfr. Part No. A9R55225
Each
HK$898.10
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