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

1857 of 999+
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)
Temporarily out of stock
Eaton RCBO, 6kA Current Rating, 2P Poles, Type C, AFDD Range
  • RS Stock No. 262-464
  • Mfr. Part No. MB-300159 AFDD-40/2/C/003-G/A
Each
Kr. 2 574,00(exc. VAT)
Temporarily out of stock
xEnergy Safety Ci Distribution Board Enclosure, 1 Way, 630 A
  • RS Stock No. 252-508
  • Mfr. Part No. 194582 CI44-S60-630/3-1XNH2
Each
Kr. 9 832,79(exc. VAT)
Temporarily out of stock
Eaton BCZ-A Door for use with Distribution Boards
  • RS Stock No. 243-510
  • Mfr. Part No. 101575 BCZ-A-TW-2/26
Each
Kr. 286,00(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 40A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 270-3792
  • Mfr. Part No. 3VA2040-8HL32-0AA0
Each
Kr. 11 392,64(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 320A, Breaking Capacity 4 kA, Withdrawable
  • RS Stock No. 230-401
  • Mfr. Part No. 113516 NZMC3-4-A320-AVE
Each
Kr. 36 916,88(exc. VAT)
Temporarily out of stock
Eaton MCB, 3P, 6A Curve C, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 240-552
  • Mfr. Part No. 101317 PLI-C6/3
Each
Kr. 1 704,56(exc. VAT)
Temporarily out of stock
Allen Bradley 140G Cover for use with Circuit Breaker
  • RS Stock No. 261-2874
  • Mfr. Part No. 140G-G-SC4
Each
Kr. 869,67(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 20A, Breaking Capacity 25 kA
  • RS Stock No. 209-6770
  • Mfr. Part No. 3VA1120-3EF46-0AA0
Each
Kr. 5 938,96(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 3P 250A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 256-611
  • Mfr. Part No. 3VA5325-7EF31-2AA0
Each
Kr. 27 499,47(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 150A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 270-087
  • Mfr. Part No. 3VA6115-8HM41-2AA0
Each
Kr. 36 627,45(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 160A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 271-9759
  • Mfr. Part No. 3VA1116-3FF46-0AA0
Each
Kr. 13 634,19(exc. VAT)
Temporarily out of stock
Siemens, Sentron MCCB Molded Case Circuit Breaker 4P 1kA, Breaking Capacity 35 kA, Cable Mount
  • RS Stock No. 249-154
  • Mfr. Part No. 3VA6610-7KT46-0AA0
Each
Kr. 150 207,20(exc. VAT)
Temporarily out of stock
Siemens SENTRON Control Wire Tap for use with 3VA52, 3VA61/62
  • RS Stock No. 161-294
  • Mfr. Part No. 3VA9270-0WC00
Each (In a Pack of 10)
Kr. 139,808(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 150A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 270-008
  • Mfr. Part No. 3VA6115-7JQ31-2AA0
Each
Kr. 37 320,71(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 160A, Breaking Capacity 5 kA, Plug In
  • RS Stock No. 243-040
  • Mfr. Part No. 191620 NZMN2-VX160-SVE
Each
Kr. 14 860,56(exc. VAT)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 800A Ekip Dip LSI, 3 channels
  • RS Stock No. 259-3047
  • Mfr. Part No. 1SDA070902R1
Each
Kr. 65 123,49(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 220A, Breaking Capacity 5 kA, Fixed Mount
  • RS Stock No. 255-383
  • Mfr. Part No. 265788 NZMH2-ME220
Each
Kr. 22 479,60(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1kA 1SDA07, 3 channels
  • RS Stock No. 259-4182
  • Mfr. Part No. 1SDA072297R1
Each
Kr. 109 239,57(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 2kA 1SDA07, 4 channels
  • RS Stock No. 259-3690
  • Mfr. Part No. 1SDA071664R1
Each
Kr. 101 791,38(exc. VAT)
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