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

247 of 999+
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 800A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 249-990
  • Mfr. Part No. 3VA6580-6HN32-2AA0
Each
€4,932.54(exc. VAT)
Temporarily out of stock
Eaton Three Phase Surge Protector, 40kA, 1.6kV, DIN Rail Mount
  • RS Stock No. 120-853
  • Mfr. Part No. 167622 SPCT2-335-3+NPE
Each
€430.00(exc. VAT)
Temporarily out of stock
Eaton Dummy Tray for use with Pasco Paco
  • RS Stock No. 132-462
  • Mfr. Part No. 1713607 LPC-PHM-DUMMY
Each
€19.20(exc. VAT)
In Stock
ABB PS4 4 Phase Busbar, 400V
  • RS Stock No. 231-9646
  • Mfr. Part No. 2CDL240101R1060 PS4/60
1 Box of 1
€89.25(exc. VAT)
In Stock
Better World
Siemens Surge Protector, Clip-On Mount
  • RS Stock No. 203-2644
  • Mfr. Part No. 3RT2936-1BD00
Each
€12.20(exc. VAT)
Temporarily out of stock
Eaton xEffect FAZ MCB, 2P, 6A Curve B, 440V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 254-315
  • Mfr. Part No. 240824 FAZT-B6/2
Each
€129.00(exc. VAT)
Temporarily out of stock
Schneider Electric Busbar Connector, Canalis Series
  • RS Stock No. 207-294
  • Mfr. Part No. KBB40ED42203W
Each
€225.59(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON Electronic Circuit Breaker 400A 3VA, 3 channels
  • RS Stock No. 156-742
  • Mfr. Part No. 3VA2340-5KQ32-0AA0
Each
€3,423.95(exc. VAT)
Temporarily out of stock
Siemens SIRIUS Adapter for use with 8WD44 Signaling 70mm
  • RS Stock No. 272-0367
  • Mfr. Part No. 8WD4308-0DF
Each
€30.37(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 150A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 268-402
  • Mfr. Part No. 3VA6115-8HN31-2AA0
Each
€1,518.46(exc. VAT)
In Stock
Blanking Strip for use with Bf Flat Distribution Board, Ci Insulated Distribution Board, Ika Industrial Distribution
  • RS Stock No. 247-318
  • Mfr. Part No. 178979 BS-12MB-GY
1 Pack of 10
€26.74(exc. VAT)
In Stock
Allen Bradley 1492 1492-SPM MCB Mini Circuit Breaker, 1P, 6A Curve B, 277V AC, 48V DC, 15 kA Breaking Capacity
  • RS Stock No. 125-1421
  • Mfr. Part No. 1492-SPM1B060
Each
€19.91(exc. VAT)
Temporarily out of stock
Phoenix Contact EC-E Electronic Circuit Breaker 500mA 24V EC-E, 1 channels , DIN Rail
  • RS Stock No. 131-305
  • Mfr. Part No. 0903041
Each (In a Pack of 6)
€108.503(exc. VAT)
Temporarily out of stock
Siemens SENTRON Connection Unit for use with 3VA5 250, 3VA6 150/250
  • RS Stock No. 269-7175
  • Mfr. Part No. 3VA9273-0QB00
1 Pack of 3
€40.25(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON Electronic Circuit Breaker 25A 3VA2, 3 channels
  • RS Stock No. 157-198
  • Mfr. Part No. 3VA2125-8KQ32-0AA0
Each
€1,471.12(exc. VAT)
In Stock
ABB 24 → 30V ac/dc Shunt Trip Shunt trip for use with Tmax XT1, Tmax XT2, Tmax XT3, Tmax XT4
  • RS Stock No. 831-9194
  • Mfr. Part No. 1SDA066322R1 SOR-C XT1..XT4 F/P 24-30 Vac/dc
Each
€110.70(exc. VAT)
Temporarily out of stock
Eaton ZSD-K29 Distribution Board
  • RS Stock No. 127-347
  • Mfr. Part No. 183257 ZSD-K29
Each
€318.00(exc. VAT)
Temporarily out of stock
Eaton IZMX Electronic Circuit Breaker 3.2kA , 4 channels , Withdrawable
  • RS Stock No. 132-887
  • Mfr. Part No. 183756 IZMX40N4-V32W-1
Each
€25,156.00(exc. VAT)
Temporarily out of stock
Schneider Electric PowerPact 3 Phase Extension Box, 12 Way, 800 A
  • RS Stock No. 336-640
  • Mfr. Part No. MGPXC512
Each
€894.89(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON Circuit breaker 3P 400A, DIN Rail Mount
  • RS Stock No. 224-7916
  • Mfr. Part No. 3VA2340-5HL32-0AA0
Each
€1,234.76(exc. VAT)
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