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

286 of 999+
In Stock
Better World
Schneider Electric Acti 9 Acti9 iDT40N MCB, 3P, 20A Curve D, 10 kA Breaking Capacity
  • RS Stock No. 191-6117
  • Mfr. Part No. A9P34320
Each
Kr. 2 128,53(exc. VAT)
In Stock
RS PRO MCB, 1P, 10A Curve B, 240 → 415V AC, 10 kA Breaking Capacity
  • RS Stock No. 265-0166
Each
Kr. 39,36(exc. VAT)
In Stock
Lovato Single Phase Surge Protector, 40kA, DIN Rail Mount
  • RS Stock No. 248-5672
  • Mfr. Part No. SG2EDGK10M3R
Each
Kr. 3 077,63(exc. VAT)
Temporarily out of stock
Phoenix Contact 3 Phase Surge Protector, ≤1.5kV, DIN Rail Mount
  • RS Stock No. 890-3764
  • Mfr. Part No. 2905230
Each
Kr. 2 701,42(exc. VAT)
In Stock
Weidmuller Electronic Circuit breaker 25mA 24V AMG ELM, 1 channels , DIN Rail Mount
  • RS Stock No. 179-2993
  • Mfr. Part No. 2080410000
Each
Kr. 650,48(exc. VAT)
Temporarily out of stock
BARRE PONTAGE DTE 1 METRE G/B
  • RS Stock No. 250-4760
  • Mfr. Part No. 2CDL310150R1057
1 Box of 5
Kr. 3 575,51(exc. VAT)
Temporarily out of stock
Siemens ALPHA Mounting Plate for use with ALPHA DIN Installation Distributor
  • RS Stock No. 272-0361
  • Mfr. Part No. 8GK9930-0KK04
Each
Kr. 642,42(exc. VAT)
In Stock
Schneider Electric, ComPacT NSX MCCB 3P 100A, Fixed Mount
  • RS Stock No. 254-6269
  • Mfr. Part No. C1032D100
Each
Kr. 4 818,18(exc. VAT)
Temporarily out of stock
Rockwell Automation FB50 Busbar, 1000V
  • RS Stock No. 281-6010
  • Mfr. Part No. FB501120Q1
Each
Kr. 571,31(exc. VAT)
Temporarily out of stock
U-shaped busbar Cu 10 mm
  • RS Stock No. 279-4290
  • Mfr. Part No. 790-191
Each
Kr. 56,74(exc. VAT)
Temporarily out of stock
ABB F200 RCCB, 40A, 2 Pole, Type A, 230/400V ac
  • RS Stock No. 177-5084
  • Mfr. Part No. 2CSF202201R5400
Each
Kr. 2 649,66(exc. VAT)
Unavailable
Schneider Electric ComPact Trip Unit for use with Compact NSX 100/160/250 circuit breakers
  • RS Stock No. 221-0929
  • Mfr. Part No. LV429116
Each
Kr. 25 075,27(exc. VAT)
In Stock
Finder Busbar, 10 A - 250V, 31mm Pitch
  • RS Stock No. 123-2861
  • Mfr. Part No. 094.56
Each
Kr. 38,21(exc. VAT)
In Stock
Eaton, xEnergy MCCB 1P 125A, Breaking Capacity 50 kA, Fixed Mount
  • RS Stock No. 628-8004
  • Mfr. Part No. 265723 NZMN2-M125
1 Box of 1
Kr. 8 282,19(exc. VAT)
Temporarily out of stock
Eaton IZMX/INX Electronic Circuit Breaker 3.2kA IZMX/INX, 4 channels , Fixed
  • RS Stock No. 132-739
  • Mfr. Part No. 183793 IZMX40N4-P32W-1
Each
Kr. 328 644,91(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 800A, Breaking Capacity 15 kA, Fixed Mount
  • RS Stock No. 253-849
  • Mfr. Part No. 265976 NZMN4-4-VE800/500
Each
Kr. 67 576,08(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller series NZM MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 25 kA, Plug In
  • RS Stock No. 230-859
  • Mfr. Part No. 113025 NZMB2-A100-KCU-NA
Each
Kr. 7 172,88(exc. VAT)
Limited stock
ABB HK400, SK400 Signal Contact
  • RS Stock No. 140-581
  • Mfr. Part No. 2CCS500900R0101
Each
Kr. 333,34(exc. VAT)
In Stock
Better World
ABB Compact Home SH200 MCB, 3P, 32A Curve B, 440V AC, 6 kA Breaking Capacity
  • RS Stock No. 539-8318
  • Mfr. Part No. 2CDS213001R0325 SH203-B32
Each
Kr. 573,68(exc. VAT)
Temporarily out of stock
Eaton MCB Blanking Module for use with SPN, TPN, Type A Distribution Boards, Type B Distribution Boards
  • RS Stock No. 124-3030
  • Mfr. Part No. EMBP EMBP
Each
Kr. 35,82(exc. VAT)
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