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

39184 Products showing for Circuit Breakers

264 of 999+
In Stock
Eaton xEffect MCB, 2P, 10A Curve D, 230 → 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 769-4747
  • Mfr. Part No. 168071 FAZ6-D10/2
Each
€66.72(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 125A, Breaking Capacity 10 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-276
  • Mfr. Part No. 3VA5112-6ED31-0AA0
Each
€646.48(exc. VAT)
Temporarily out of stock
Eaton RCBO, 16A Current Rating, 1P + N Poles, 30mA Trip Sensitivity, Type B, xPole Range
  • RS Stock No. 250-730
  • Mfr. Part No. 193528 PXK-B16/1N/003-F
Each
€242.00(exc. VAT)
Temporarily out of stock
Plate for use with N(S)4, NZM4
  • RS Stock No. 255-971
  • Mfr. Part No. 266814 NZM4-XKM1
Each
€73.70(exc. VAT)
Temporarily out of stock
Hager 48 Way Plastic Consumer Unit, IP30 FD
  • RS Stock No. 144-4608
  • Mfr. Part No. FD22AN
Each
€319.43(exc. VAT)
Temporarily out of stock
Schneider Electric, PowerPact MCCB 3P 200A, Breaking Capacity 14 kA, DIN Rail Mount
  • RS Stock No. 432-912
  • Mfr. Part No. NJDF36200TW
Each
€3,053.95(exc. VAT)
Temporarily out of stock
Hager RCBO, 20A Current Rating, 3P+N Poles, 300mA Trip Sensitivity, Type AC
  • RS Stock No. 602-214
  • Mfr. Part No. AFC420F
Each
€422.72(exc. VAT)
In Stock
Better World
Siemens Sentron for use with 3VA Series Circuit Breaker
  • RS Stock No. 874-4540
  • Mfr. Part No. 3VA9988-0BL33
Each
€74.08(exc. VAT)
Temporarily out of stock
Schneider Electric RCBO, 40A Current Rating, 1P Poles, Type B, Acti9 Range
  • RS Stock No. 245-090
  • Mfr. Part No. A9D56840
Each
€175.99(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 800A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 257-529
  • Mfr. Part No. 3VA5580-6EC36-0AA0
Each
€3,705.61(exc. VAT)
In Stock
Better World
Siemens Sentron 5SY4 MCB, 2P, 32A Curve B, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 772-1344
  • Mfr. Part No. 5SY4232-6
Each
€65.17(exc. VAT)
Temporarily out of stock
Schneider Electric Surge Arrester, 8kA, 460V ac, Clip-On Mount
  • RS Stock No. 429-213
  • Mfr. Part No. A9L08421
Each
€744.47(exc. VAT)
Temporarily out of stock
RS PRO 3 Phase Industrial Surge Protector, 25kA, 1.25kV, DIN Rail Mount
  • RS Stock No. 101-747
Each
€208.08(exc. VAT)
In Stock
Siemens Consumer Unit, IP55 3RV1913
  • RS Stock No. 755-2836
  • Mfr. Part No. 3RV1913-1DA00
Each
€22.99(exc. VAT)
Temporarily out of stock
Siemens ALPHA Assembly Kit for use with Modular Installation Devices
  • RS Stock No. 269-8397
  • Mfr. Part No. 8GK4001-4KK22
Each
€490.91(exc. VAT)
In Stock
Phoenix Contact 1 Phase Surge Protector, 1.2kV, DIN Rail Mount
  • RS Stock No. 890-3733
  • Mfr. Part No. 2905348
Each
€191.12(exc. VAT)
Temporarily out of stock
Schneider Electric Straight Busbar Trunking, 3m, 40A, Canalis Series
  • RS Stock No. 275-8809
  • Mfr. Part No. KBA40ED4303W
Each
€109.11(exc. VAT)
In Stock
Hager 3 Phase Busbar
  • RS Stock No. 144-4833
  • Mfr. Part No. KBN663A
Each
€30.01(exc. VAT)
Limited stock
nVent ERICO Neutral Double Busbar Busbar
  • RS Stock No. 646-809
  • Mfr. Part No. 568716
Each
€4.46(exc. VAT)
In Stock
Better World
Siemens Sentron 5SY4 MCB, 1P, 1A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 622-0008
  • Mfr. Part No. 5SY4101-7
Each
€26.42(exc. VAT)
1
264
1960
Results per page

Related links