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

225 of 999+
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 250A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 211-3802
  • Mfr. Part No. 3VA2325-5KP42-0AA0
Each
Kr. 42 404,65(exc. VAT)
In Stock
Better World
Schneider Electric, EasyPact MCCB 3P 175A, Breaking Capacity 8 kA, Fixed Mount
  • RS Stock No. 269-6196
  • Mfr. Part No. EZC250N3175
Each
Kr. 7 995,64(exc. VAT)
Temporarily out of stock
Phoenix Contact Thermomagnetic Device Circuit Breaker Thermal Circuit Breaker - CB Single Pole 50V dc Voltage Rating,
  • RS Stock No. 212-8783
  • Mfr. Part No. 2800844
Each
Kr. 379,68(exc. VAT)
Temporarily out of stock
Eaton Eaton Moeller NZM Residual Current Release for use with Four Pole NZM2-4, N2-4
  • RS Stock No. 259-864
  • Mfr. Part No. 292345 NZM2-4-XFIA30
Each
Kr. 40 703,52(exc. VAT)
In Stock
Better World
Siemens Sentron 5SY4 MCB, 1+N, 10A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 772-1420
  • Mfr. Part No. 5SY4510-7
Each
Kr. 732,55(exc. VAT)
Temporarily out of stock
ABB S804N MCB, 4P, 25A Curve B, 690V AC, 36 kA Breaking Capacity
  • RS Stock No. 140-589
  • Mfr. Part No. 2CCS894001R0255
Each
Kr. 3 720,52(exc. VAT)
Temporarily out of stock
ABB Copper Copper Bar for Use with TriLine
  • RS Stock No. 237-6604
  • Mfr. Part No. 2CPX061423R9999
1 Box of 1
Kr. 13 000,43(exc. VAT)
In Stock
ifm electronic Electronic Circuit Breaker 4A 24V DF, 2 channels
  • RS Stock No. 100-572
  • Mfr. Part No. DF1214
Each
Kr. 703,16(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 Acti9 iDT40K MCB, 3+N, 16A Curve C, 400V AC
  • RS Stock No. 238-3419
  • Mfr. Part No. A9P71716
Each
Kr. 1 329,90(exc. VAT)
In Stock
Better World
Schneider Electric, Easypact MCCB 3P 400A, Breaking Capacity 50 kA, Fixed Mount
  • RS Stock No. 269-6228
  • Mfr. Part No. EZC630H3400N
Each
Kr. 8 964,02(exc. VAT)
Temporarily out of stock
RCBO, 40A Current Rating, 1+N Poles, 30mA Trip Sensitivity, Type C, xEffect Range
  • RS Stock No. 252-754
  • Mfr. Part No. 193493 FRBmM-C40/1N/003-F
Each
Kr. 3 061,92(exc. VAT)
In Stock
Siemens Sentron Undervoltage Release for use with 3VA1 Series Circuit Breaker
  • RS Stock No. 874-4525
  • Mfr. Part No. 3VA9908-0BB25
Each
Kr. 1 744,71(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 700A, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 257-731
  • Mfr. Part No. 3VA5570-5EC32-1AA0
Each
Kr. 42 635,74(exc. VAT)
Temporarily out of stock
Hager NQN MCB, 2P, 20A Curve B, 415V AC, 25 kA Breaking Capacity
  • RS Stock No. 597-862
  • Mfr. Part No. NQN220
Each
Kr. 2 077,28(exc. VAT)
Unavailable
Schneider Electric, NSX MCCB 3P 250A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 219-8409
  • Mfr. Part No. LV438218
Each
Kr. 15 276,25(exc. VAT)
In Stock
Eaton Eaton Moeller xPole 2 Phase Busbar, 415V
  • RS Stock No. 258-854
  • Mfr. Part No. 291467 EVG-16/2PHAS/4MODUL
Each
Kr. 75,39(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 600A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 249-465
  • Mfr. Part No. 3VA6560-7JP42-2AA0
Each
Kr. 82 960,59(exc. VAT)
Temporarily out of stock
ABB S804S MCB, 4P, 16A, UC-B, 1000V DC, 50 kA Breaking Capacity
  • RS Stock No. 140-251
  • Mfr. Part No. 2CCS864001R1165
Each
Kr. 5 224,67(exc. VAT)
In Stock
Better World
Schneider Electric Multi 9 C60SP MCB, 4P, 10A Curve B, 440V AC, 15 kA Breaking Capacity
  • RS Stock No. 211-2349
  • Mfr. Part No. M9F21410
Each
Kr. 1 247,88(exc. VAT)
Temporarily out of stock
Schneider Electric, Compact MCCB 4P 1.25kA, Fixed Mount
  • RS Stock No. 247-1766
  • Mfr. Part No. 33254
Each
Kr. 29 020,99(exc. VAT)
1
225
1911
Results per page

Related links