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

35871 Products showing for Circuit Breakers

5 of 999+
Better World
Schneider Electric Acti 9 Acti9 iDT40T MCB, 3P, 40A Curve C, 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 191-6100
  • Mfr. Part No. A9P22740
Each
HK$1,776.24(exc. GST)
ABB Tmax XT Auxiliary Contact for use with Circuit Breaker
  • RS Stock No. 232-0179
  • Mfr. Part No. 1SDA066422R1 AUX 250V XT1..XT4
Each
HK$275.50(exc. GST)
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(exc. GST)
Siemens SENTRON Wire Connector for use with 3VA5/6 400/600
  • RS Stock No. 269-7194
  • Mfr. Part No. 3VA9473-0JE23
Each (In a Pack of 3)
HK$1,986.167(exc. GST)
Better World
Siemens Sentron 5SY4 MCB, 1+N, 2A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 772-1401
  • Mfr. Part No. 5SY4502-7
Each
HK$705.00(exc. GST)
ABB System Pro M Compact S200 M UC MCB, 1P, 20A Curve K, 230V AC, 220V DC, 10 kA Breaking Capacity
  • RS Stock No. 200-035
  • Mfr. Part No. 2CDS271061R0487
Each
HK$1,111.04(exc. GST)
Hager RCBO, 20A Current Rating, 1P Poles, 30mA Trip Sensitivity, Type AC
  • RS Stock No. 251-2018
  • Mfr. Part No. ADC720F
Each
HK$2,222.67(exc. GST)
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(exc. GST)
Europa EUC1P EUB MCB, 1P, 1A Curve B, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 849-6459
  • Mfr. Part No. EUC1P1B
Each
HK$76.80(exc. GST)
Schneider Electric for use with ComPact NS630b → 1600 Circuit Breaker
  • RS Stock No. 247-1758
  • Mfr. Part No. 33195
Each
HK$570.60(exc. GST)
Weidmuller Electronic Circuit breaker 25mA 24V AMG ELM, 1 channels , DIN Rail Mount
  • RS Stock No. 179-2995
  • Mfr. Part No. 2080480000
Each
HK$212.60(exc. GST)
ABB Front Terminal for use with XT1 Cables
  • RS Stock No. 192-0878
  • Mfr. Part No. 1SDA067152R1
Each
HK$496.88(exc. GST)
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P 40A, Fixed Mount
  • RS Stock No. 232-0245
  • Mfr. Part No. 1SDA067393R1 XT1C 160 TMD 40A FF
Each
HK$2,523.28(exc. GST)
Altech Thermal Circuit Breaker - V-EA 2 Pole 277V Voltage Rating DIN Rail Mount, 2.5A Current Rating
  • RS Stock No. 899-1765
  • Mfr. Part No. 2E2.5UM
Each
HK$295.90(exc. GST)
ETA Thermal Magnetic Circuit Breaker - 2210 Single Pole DIN Rail Mount, 2A Current Rating
  • RS Stock No. 282-6523
  • Mfr. Part No. 2210-T210-K0M1-H121-2A
Each
HK$398.90(exc. GST)
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(exc. GST)
Eaton AFDD, 16A Current Rating, 2P Poles, 10mA Trip Sensitivity, Type B, Eaton Moeller Range
  • RS Stock No. 246-606
  • Mfr. Part No. 187201 AFDD-16/2/B/001-A
Each
HK$2,092.66(exc. GST)
Better World
Siemens SENTRON 3VA1 MCB, 3P, 125A
  • RS Stock No. 224-7796
  • Mfr. Part No. 3VA1112-1AA32-0AA0
Each
HK$2,342.10(exc. GST)
Better World
Schneider Electric TeSys Thermal Circuit Breaker - TeSyS GV 3 Pole 690V ac Voltage Rating, 12.5A Current Rating
  • RS Stock No. 175-1435
  • Mfr. Part No. GV4L12N
Each
HK$6,318.90(exc. GST)
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(exc. GST)
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