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

38220 Products showing for Circuit Breakers

178 of 999+
Eaton xEffect MCB, 2P, 6A Curve D, 230 → 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 769-4835
  • Mfr. Part No. 168070 FAZ6-D6/2
Each
Kr. 759,36(exc. VAT)
Better World
Siemens 5SV3 RCCB, 16A, 2 Pole, 10mA, Type A
  • RS Stock No. 124-7725
  • Mfr. Part No. 5SV3111-6
Each
Kr. 1 622,06(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 500A, Breaking Capacity 5 kA, Fixed Mount
  • RS Stock No. 229-640
  • Mfr. Part No. 109698 NZMN3-4-A500
Each
Kr. 36 024,56(exc. VAT)
Siemens, SENTRON MCCB 3P 1.25kA, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 270-4899
  • Mfr. Part No. 3VA2612-7HM32-0AA0
Each
Kr. 90 817,58(exc. VAT)
Better World
Schneider Electric Masterpact Nt, Masterpact Nw, Ns630B...1600, Ns1600B...3200, Nsx100...250, Nsx400...630, Powerpact
  • RS Stock No. 221-1295
  • Mfr. Part No. TRV00128
Each
Kr. 815,79(exc. VAT)
Better World
Siemens SENTRON 5SY4 MCB, 2P, 8A Curve D, 400V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 209-6590
  • Mfr. Part No. 5SY4208-8
Each
Kr. 1 432,75(exc. VAT)
Siemens SENTRON Undervoltage Release
  • RS Stock No. 277-0736
  • Mfr. Part No. 3WA9111-0AE05
Each
Kr. 4 760,41(exc. VAT)
Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 1kA, Breaking Capacity 37 kA, Fixed Mount
  • RS Stock No. 255-947
  • Mfr. Part No. 265991 NZMH4-4-VE1000/630
Each
Kr. 95 089,28(exc. VAT)
Legrand Circuit Breaker, 2P, 10A Curve D, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 266-1330
  • Mfr. Part No. 408014
Each
Kr. 1 543,90(exc. VAT)
Better World
Schneider Electric, EasyPact MCCB 2P 20A, Breaking Capacity 10 kA, Fixed Mount
  • RS Stock No. 269-6084
  • Mfr. Part No. EZC100H2020
Each
Kr. 3 951,60(exc. VAT)
Better World
Schneider Electric, Compact MCCB 3P 100A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 212-0269
  • Mfr. Part No. LV433257
Each
Kr. 9 576,03(exc. VAT)
Legrand 4115 RCD, 63A, 1+N Pole, 100mA, Type AC
  • RS Stock No. 863-7758
  • Mfr. Part No. 4 115 16
Each
Kr. 788,24(exc. VAT)
Better World
ABB, Tmax XT MCCB 4P 200A, Fixed Mount
  • RS Stock No. 236-6694
  • Mfr. Part No. 1SDA068324R1 XT4S 250 TMA 200A 3P+N FF
Each
Kr. 14 558,54(exc. VAT)
Eaton xEffect MCB, 1+N, 10A Curve C, 240V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 922-7087
  • Mfr. Part No. 278670 FAZ-C10/1N
Each
Kr. 682,17(exc. VAT)
Better World
Siemens 5SV3 RCCB, 40A, 4 Pole, 300mA, Type A
  • RS Stock No. 124-7742
  • Mfr. Part No. 5SV3644-6KK12
Each
Kr. 1 655,39(exc. VAT)
Eaton MCB, 1P, 10A Curve B, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 248-577
  • Mfr. Part No. 101249 PLI-B10/1
Each
Kr. 187,62(exc. VAT)
Better World
Siemens SENTRON 3VA9 Terminal for use with 3VA1 100/160
  • RS Stock No. 218-1803
  • Mfr. Part No. 3VA9153-0JA11
Each
Kr. 333,92(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 250A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 231-114
  • Mfr. Part No. 112629 NZMH2-A250-FIA30
Each
Kr. 59 442,24(exc. VAT)
ABB TMAX XT1B MCB, 3P, 100A, 690V AC, 500V DC, 18 kA Breaking Capacity
  • RS Stock No. 192-0886
  • Mfr. Part No. 1SDA066807R1
Each
Kr. 3 109,29(exc. VAT)
Schneider Electric ComPacT NSX Rotary Handle for use with NSX630
  • RS Stock No. 272-7479
  • Mfr. Part No. LV432600T
Each
Kr. 3 224,54(exc. VAT)
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