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

1666 of 999+
Eaton xEnergy Light Distribution Board
  • RS Stock No. 230-555
  • Mfr. Part No. 114737 XLSPP203
Each
HK$509.68
Circuit-breaker/thermal 16 A
  • RS Stock No. 577-463
  • Mfr. Part No. 1140-G111-P1M1-16A
Each
HK$102.44
ABB Emax2 Electronic Circuit Breaker 1.6kA 1SDA07, 4 channels
  • RS Stock No. 259-3672
  • Mfr. Part No. 1SDA071646R1
Each
HK$88,715.48
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 250A, Breaking Capacity 5 kA, Withdrawable
  • RS Stock No. 243-025
  • Mfr. Part No. 191577 NZMN3-VX250-AVE
Each
HK$27,557.50
WEG EC-SD Busbar for use with CWB40, CWB50, CWB66, CWB80
  • RS Stock No. 201-3475
  • Mfr. Part No. EC-SD2
Each
HK$387.50
Lovato P1 MCB, 1+N, 2A Curve C, 230V AC
  • RS Stock No. 248-5614
  • Mfr. Part No. P1MB1MC02
Each
HK$493.60
Siemens 24V ac Circuit Trip
  • RS Stock No. 223-7649
  • Mfr. Part No. 5TT4455-2
Each
HK$721.80
Better World
Schneider Electric Compact Nsx, Compact Nsx Dc Plug In Kit for use with Compact Nsx 400/630
  • RS Stock No. 221-1251
  • Mfr. Part No. LV432538
Each
HK$6,966.57
Eaton IZMX/INX Electronic Circuit Breaker 3.2kA , 3 channels , Withdrawable
  • RS Stock No. 132-834
  • Mfr. Part No. 183593 IZMX40B3-P32W-1
Each
HK$217,032.59
ABB Emax2 Electronic Circuit Breaker 2.5kA 1SDA07, 3 channels
  • RS Stock No. 259-4283
  • Mfr. Part No. 1SDA072411R1
Each
HK$90,022.39
Schneider Electric TeSys Thermal Circuit Breaker - GB2 2 Pole 250V Voltage Rating, 16A Current Rating
  • RS Stock No. 219-9316
  • Mfr. Part No. GB2CD21
Each (In a Pack of 6)
HK$484.317
Eaton Eaton Moeller NZM Assembly Kit for use with N(S)2(-4), NZM2(-4), PN2(-4)
  • RS Stock No. 229-388
  • Mfr. Part No. 116895 NZM2-XHB-DA
Each
HK$3,255.25
ABB F200 RCCB, 80A, 4 Pole, 30mA, Type A, 230V ac
  • RS Stock No. 225-6125
  • Mfr. Part No. 2CSF204101R1800 F204 A-80/0,03
Each
HK$2,813.19
Hager HMC MCB, 3P, 80A, 400V AC, 15 Breaking Capacity
  • RS Stock No. 602-113
  • Mfr. Part No. HMC380
Each
HK$5,264.50
Siemens, SENTRON MCCB 4P 300A, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 257-426
  • Mfr. Part No. 3VA5330-5GF41-0AA0
Each
HK$15,526.10
Eaton xEffect xEffect - FAZ-T MCB, 1+N, 40A Curve B, 230V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 129-333
  • Mfr. Part No. 142510 FAZT-B40/1N
Each
HK$737.40
ABB System Pro M Compact S300P MCB, 3+N, 1A Curve C, 415V AC, 100 kA Breaking Capacity
  • RS Stock No. 200-952
  • Mfr. Part No. 2CDS383103R0014
Each
HK$6,032.38
Better World
Siemens SENTRON 5SL6 MCB, 1P, 10A Curve C, 6 kA Breaking Capacity
  • RS Stock No. 202-7139
  • Mfr. Part No. 5SL6110-7
Each
HK$134.10
Better World
Schneider Electric, Compact MCCB 3P 220A, Breaking Capacity 200 kA, Fixed Mount
  • RS Stock No. 212-0272
  • Mfr. Part No. LV433501
Each
HK$17,514.40
Schneider Electric ComPacT Mechanical Interlock for use with Compact NSX 400/630
  • RS Stock No. 341-466
  • Mfr. Part No. LV432614T
Each
HK$4,670.44
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