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

38192 Products showing for Circuit Breakers

9 of 999+
Carling Technologies Thermal Circuit Breaker - C Single Pole 240V Voltage Rating Panel Mount, 30A Current Rating
  • RS Stock No. 881-0830
  • Mfr. Part No. CA1-B0-34-630-121-C
Each
Kr. 331,93(exc. VAT)
Better World
Schneider Electric Acti 9 C60H-DC MCB, 2P, 10A Curve C, 500V DC
  • RS Stock No. 772-1521
  • Mfr. Part No. A9N61528
Each
Kr. 1 814,04(exc. VAT)
Better World
Schneider Electric Compact Nsx, Compact Nsx Dc Support for use with Compact Nsx 100/160/250
  • RS Stock No. 221-1175
  • Mfr. Part No. LV429275
Each
Kr. 221,25(exc. VAT)
ETA Thermal Circuit Breaker - 3120-N 5 Pole 50 V DC, 240 V AC Voltage Rating, 2A Current Rating
  • RS Stock No. 210-2089
  • Mfr. Part No. 3120-N551-H7T1-W02D-2A
Each
Kr. 346,90(exc. VAT)
Schneider Electric Thermal Circuit Breaker - GB2 1P + N Pole 250V ac Voltage Rating DIN Rail Mount, 10A Current Rating
  • RS Stock No. 610-0910
  • Mfr. Part No. GB2CD16
Each
Kr. 547,06(exc. VAT)
Eaton Eaton Moeller xComfort RC Suppressor Circuit
  • RS Stock No. 259-333
  • Mfr. Part No. 292260 CMMZ-00/07
Each
Kr. 75,50(exc. VAT)
Better World
Schneider Electric Acti 9 iC60L MCB, 4P, 16A Curve C, 400V AC, 12 → 250V DC, 10 kA Breaking Capacity
  • RS Stock No. 734-9383
  • Mfr. Part No. A9F94416
Each
Kr. 3 327,67(exc. VAT)
Siemens SENTRON 1 Phase Busbar, 27mm Pitch
  • RS Stock No. 202-7113
  • Mfr. Part No. 5ST3714
Each
Kr. 1 155,44(exc. VAT)
Sensata Airpax Airpax Thermal Circuit Breaker - LELHK11 2 Pole 240V ac Voltage Rating Panel Mount, 10A Current Rating
  • RS Stock No. 275-0374
  • Mfr. Part No. LELHK11-1-62-10.0-U-01-V
Each
Kr. 1 581,81(exc. VAT)
Allen Bradley 140MT Auxiliary Contact for use with Motor Protection Circuit Breaker
  • RS Stock No. 273-2279
  • Mfr. Part No. 140MT-C-ASA11
Each
Kr. 216,56(exc. VAT)
Better World
Siemens Sentron 5SY4 MCB, 2P, 10A Curve C, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 772-1303
  • Mfr. Part No. 5SY4210-7
Each
Kr. 1 035,27(exc. VAT)
Better World
Schneider Electric TeSys Thermal Circuit Breaker - TeSyS GV 3 Pole 690V ac Voltage Rating, 50A Current Rating
  • RS Stock No. 175-1509
  • Mfr. Part No. GV4P50N
Each
Kr. 6 320,26(exc. VAT)
Eaton MEMShield MCB, 1P, 32A Curve C, 230V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 124-3037
  • Mfr. Part No. EMCH132 EMCH132
Each
Kr. 303,07(exc. VAT)
Better World
Schneider Electric RCBO, 6A Current Rating, 1P Poles, 30mA Trip Sensitivity, Acti9 Range
  • RS Stock No. 201-2245
  • Mfr. Part No. A9DF3606
Each
Kr. 3 065,15(exc. VAT)
Better World
ABB System Pro M Compact S200M MCB, 4P, 63A Curve C, 400V AC, 125V DC, 15 kA Breaking Capacity
  • RS Stock No. 231-9779
  • Mfr. Part No. 2CDS274001R0634 S204M C 63A - 15 KA
1 Box of 1
Kr. 2 664,21(exc. VAT)
Contactum 3 Phase Surge Protector, 40kA, DIN Rail Mount
  • RS Stock No. 201-0763
  • Mfr. Part No. DDB-T2S4031KIT
Each
Kr. 2 146,03(exc. VAT)
Eaton xEffect FAZ MCB, 1+N, 5A Curve B, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 256-700
  • Mfr. Part No. 278641 FAZ-B5/1N
Each
Kr. 677,25(exc. VAT)
Allen Bradley Bulletin 1694 Electronic Circuit Protection (ECP) Electronic Circuit breaker 1 → 10A 1694-PMD, 2
  • RS Stock No. 236-8720
  • Mfr. Part No. 1694-PMD2A10
Each
Kr. 1 306,22(exc. VAT)
ABB SMISSLINE TP S400M MCB, 3P, 10A Curve B, 230V AC, 6 kA Breaking Capacity
  • RS Stock No. 176-346
  • Mfr. Part No. 2CCS553001R0105 - S403EB10
Each
Kr. 873,51(exc. VAT)
Schneider Electric Thermal Circuit Breaker - GB2 Single Pole 277V ac Voltage Rating DIN Rail Mount, 12A Current Rating
  • RS Stock No. 312-3724
  • Mfr. Part No. GB2CB20
Each
Kr. 307,96(exc. VAT)
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