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

1856 of 999+
Temporarily out of stock
ABB S203L MCB, 3P, 40A Curve C, 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 203-703
  • Mfr. Part No. 2CDS243701R0404
Each
Kr. 1 295,59(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller series NZM MCCB Molded Case Circuit Breaker 3P 40A, Breaking Capacity 4 kA, Plug In
  • RS Stock No. 230-653
  • Mfr. Part No. 112748 NZMC1-S40-SVE
Each
Kr. 5 399,68(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 35A, Breaking Capacity 5 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-362
  • Mfr. Part No. 3VA5135-4ED41-0AA0
Each
Kr. 5 361,24(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 250A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 260-676
  • Mfr. Part No. 3VA6225-7KQ41-0AA0
Each
Kr. 51 417,08(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 40A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 270-4629
  • Mfr. Part No. 3VA2140-6HM42-0AA0
Each
Kr. 15 945,07(exc. VAT)
In Stock
Hager NEN MCB, 1P, 32A, 230V AC, 10 Breaking Capacity
  • RS Stock No. 602-148
  • Mfr. Part No. NEN132
Each
Kr. 667,87(exc. VAT)
Temporarily out of stock
Schneider Electric, PowerPact Circuit breaker 4P 40A, Breaking Capacity 35 kA, DIN Rail Mount
  • RS Stock No. 357-070
  • Mfr. Part No. BGF46040
Each
Kr. 5 684,76(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 40A, Breaking Capacity 200 kA, Fixed Mount
  • RS Stock No. 270-4602
  • Mfr. Part No. 3VA2140-0HN42-0AA0
Each
Kr. 20 220,20(exc. VAT)
Temporarily out of stock
Eaton Eaton Moeller NZM Undervoltage Release for use with N(S)2(-4), N(S)3(-4), NZM2(-4), NZM3(-4)
  • RS Stock No. 255-713
  • Mfr. Part No. 259495 NZM2/3-XU60AC
Each
Kr. 1 818,96(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 80A, Breaking Capacity 5 kA, Fixed Mount
  • RS Stock No. 255-656
  • Mfr. Part No. 269234 NZMH2-A80-NA
Each
Kr. 7 779,20(exc. VAT)
Temporarily out of stock
Better World
ABB, Tmax XT MCCB 4P 250A, Fixed Mount
  • RS Stock No. 236-6835
  • Mfr. Part No. 1SDA068585R1 XT4L 250 Ekip LSI 250A FF
Each
Kr. 29 128,99(exc. VAT)
Temporarily out of stock
Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 400A, Breaking Capacity 6 kA, Fixed Mount
  • RS Stock No. 253-187
  • Mfr. Part No. 192358 NZMS3-PX400
Each
Kr. 33 633,60(exc. VAT)
Temporarily out of stock
Better World
Siemens SIRIUS Electronic Circuit Breaker 5A 3RV2, 3 channels , DIN Rail Mount
  • RS Stock No. 160-752
  • Mfr. Part No. 3RV2321-1FC20
Each
Kr. 1 166,99(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 150A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 269-999
  • Mfr. Part No. 3VA6115-6KP31-2AA0
Each
Kr. 34 316,57(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 16A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 271-9463
  • Mfr. Part No. 3VA1196-5ED36-0AA0
Each
Kr. 4 263,57(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 250A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 260-365
  • Mfr. Part No. 3VA6225-7JQ31-0AA0
Each
Kr. 40 902,58(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 63A, Breaking Capacity 2.5 kA, Fixed Mount
  • RS Stock No. 270-4721
  • Mfr. Part No. 3VA2163-6JP36-0AA0
Each
Kr. 17 216,06(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S200M MCB, 3+N, 1A Curve D, 400V AC, 125V DC, 15 kA Breaking Capacity
  • RS Stock No. 200-788
  • Mfr. Part No. 2CDS273103R0011
Each
Kr. 3 702,26(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 400A, Breaking Capacity 5 kA, Fixed Mount
  • RS Stock No. 249-013
  • Mfr. Part No. 191588 NZMN3-VX400-BT
Each
Kr. 29 245,90(exc. VAT)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 3.2kA Ekip G Touch LSIG, 3 channels
  • RS Stock No. 259-3258
  • Mfr. Part No. 1SDA071157R1
Each
Kr. 190 214,08(exc. VAT)
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