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
RCDs
RCDs
Surge Protection Devices
Surge Protection Devices
Thermal Breakers
Thermal Breakers

39187 Products showing for Circuit Breakers

32 of 999+
In Stock
Better World
Schneider Electric ID RCCB, 40A, 4 Pole, 300mA, Type AC, 415V ac
  • RS Stock No. 214-2100
  • Mfr. Part No. M9R14440
Each
€148.33(exc. VAT)
In Stock
Eaton xEffect MCB, 1P, 6A Curve C, 230 → 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 769-4706
  • Mfr. Part No. 239034 FAZ6-C6/1
Each
€26.76(exc. VAT)
Limited stock
ETA Thermal Circuit Breaker - 1140-E Single Pole 250V Voltage Rating Integral Mount, 4A Current Rating
  • RS Stock No. 728-8658
  • Mfr. Part No. 1140-E211-P1M1-4A
Each
€15.01(exc. VAT)
In Stock
Better World
Schneider Electric Easypact Cvs100...250, Nsx100...250 Dc, Powerpact Multistandard Front Plate for use with Compact
  • RS Stock No. 221-1192
  • Mfr. Part No. LV429317
Each
€36.99(exc. VAT)
In Stock
ETA Thermal Circuit Breaker - 4130 Single Pole 240V Voltage Rating Panel Mount, 50A Current Rating
  • RS Stock No. 405-9242
  • Mfr. Part No. 4130-G211-K4M1-50A
Each
€45.94(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
€3.64(exc. VAT)
Limited stock
ETA Thermal Magnetic Circuit Breaker - 2210 Single Pole DIN Rail Mount, 2A Current Rating
  • RS Stock No. 282-6523
  • Mfr. Part No. 2210-T210-K0M1-H121-2A
Each
€61.48(exc. VAT)
In Stock
ETA Thermal Circuit Breaker - 106 Single Pole 240V Voltage Rating Panel Mount, 8A Current Rating
  • RS Stock No. 728-8651
  • Mfr. Part No. 106-P10-000040-8A
Each
€17.64(exc. VAT)
In Stock
Contactum MCB, 1P, 10A Curve C, 250V AC, 10 kA Breaking Capacity
  • RS Stock No. 184-9028
  • Mfr. Part No. CPB1010C
Each
€5.99(exc. VAT)
In Stock
Hager MJT MCB, 2P, 2A Curve C, 240 → 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 144-4948
  • Mfr. Part No. MJT702
Each
€37.31(exc. VAT)
Limited stock
Better World
Schneider Electric Acti 9 iC60N MCB, 1P, 16A Curve C, 100 → 133V AC, 12 → 48V DC, 6 kA Breaking Capacity
  • RS Stock No. 790-8866
  • Mfr. Part No. A9F44116
Each
€22.21(exc. VAT)
Temporarily out of stock
Schneider Electric Acti 9 Inter-Pole Barrier for use with ARA, IC60, iDPN Vigi, iLD, ISW, ISW-NA, RCA, Reflex iC60
  • RS Stock No. 791-2770
  • Mfr. Part No. A9A27001
1 Pack of 10
€145.56(exc. VAT)
In Stock
RS PRO MCB, 2P, 32A Curve C, 240 → 415V AC, 10 kA Breaking Capacity
  • RS Stock No. 265-0184
Each
€23.99(exc. VAT)
In Stock
Hager MJT MCB, 2P, 16A Curve C, 240 → 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 144-4950
  • Mfr. Part No. MJT716
Each
€29.40(exc. VAT)
In Stock
Finder Busbar, 10 A - 250V
  • RS Stock No. 666-7996
  • Mfr. Part No. 093.08
Each
€4.21(exc. VAT)
In Stock
Hager MJT MCB, 2P, 10A Curve C, 240 → 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 144-4949
  • Mfr. Part No. MJT710
Each
€28.84(exc. VAT)
In Stock
ETA Thermal Circuit Breaker - 3120-N 2 Pole 50 V DC, 240 V AC Voltage Rating, 10A Current Rating
  • RS Stock No. 210-2064
  • Mfr. Part No. 3120-N521-H7T1-W01D-10A-U0000M
Each
€62.24(exc. VAT)
In Stock
ETA ESS20 Distribution Board
  • RS Stock No. 631-9136
  • Mfr. Part No. 17PLUS-Q02-00
Each
€34.92(exc. VAT)
Temporarily out of stock
Siemens ALPHA Cover for use with Front Cover
  • RS Stock No. 203-3262
  • Mfr. Part No. 8GK4501-3KK22
Each
€135.31(exc. VAT)
Temporarily out of stock
Eaton Single Phase Surge Protector, 40kA, 1.8kV, DIN Rail Mount
  • RS Stock No. 121-149
  • Mfr. Part No. 167623 SPCT2-385-1+NPE
Each
€141.00(exc. VAT)
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