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

244 of 999+
In Stock
Allen Bradley 1492 1492-SPM MCB, 1P, 1A Curve D, 277V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 125-1493
  • Mfr. Part No. 1492-SPM1D010
Each
Kr. 427,17(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 400A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 260-360
  • Mfr. Part No. 3VA6340-8KQ31-0AA0
Each
Kr. 57 309,82(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 630A, Breaking Capacity 5 kA, Fixed Mount
  • RS Stock No. 232-057
  • Mfr. Part No. 110890 NZMN3-AE630-T
Each
Kr. 36 539,36(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 63A, Breaking Capacity 6 kA, Fixed Mount
  • RS Stock No. 256-993
  • Mfr. Part No. 271394 NZMC1-A63
Each
Kr. 4 015,44(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 iC60H MCB, 2P, 2A Curve C, 440V AC, 100 → 133V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3326
  • Mfr. Part No. A9F54202
Each
Kr. 978,81(exc. VAT)
In Stock
Allen Bradley 1492 1492-SPM MCB, 1P, 3A Curve C, 277V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 125-1453
  • Mfr. Part No. 1492-SPM1C030
Each
Kr. 427,17(exc. VAT)
In Stock
Allen Bradley 1492-AM DIN Rail Adapter for use with MC/MCB for GFCI & GFEP Devices
  • RS Stock No. 218-8521
  • Mfr. Part No. 1492-AMCDIN1
Each (In a Pack of 6)
Kr. 65,895(exc. VAT)
In Stock
ETA Thermal Circuit Breaker - 3120-N 5 Pole 50 V DC, 240 V AC Voltage Rating, 16A Current Rating
  • RS Stock No. 210-2113
  • Mfr. Part No. 3120-N554-P7T1-W19DG4-16A
Each
Kr. 382,36(exc. VAT)
Temporarily out of stock
ABB Emax 2, Tmax XT Flange for use with Emax 2
  • RS Stock No. 231-9310
  • Mfr. Part No. 1SDA073863R1 E1.2-XT7-XT7M W
Each
Kr. 407,75(exc. VAT)
Temporarily out of stock
Better World
ABB System Pro M Compact S200 MCB, 3P, 3A Curve K
  • RS Stock No. 237-3241
  • Mfr. Part No. 2CDS253001R0317 S203 K 3A - 10 KA
Each
Kr. 1 747,03(exc. VAT)
Temporarily out of stock
Eaton Eaton Moeller Series NZM Adapter for use with N(S)3, NZM3, PN3
  • RS Stock No. 240-645
  • Mfr. Part No. 104556 NZM3-XAD550
Each
Kr. 2 253,68(exc. VAT)
Temporarily out of stock
Siemens SENTRON Cable Cage for use with Circuit Breaker 3VA2
  • RS Stock No. 272-0205
  • Mfr. Part No. 3VA9167-0KB02
Each
Kr. 174,47(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S200 M UC MCB, 1P, 40A Curve B, 230V AC, 220V DC, 10 kA Breaking Capacity
  • RS Stock No. 200-986
  • Mfr. Part No. 2CDS271061R0405
Each
Kr. 898,70(exc. VAT)
In Stock
Better World
Schneider Electric, EasyPact MCCB 3P 20A, Breaking Capacity 10 kA, Fixed Mount
  • RS Stock No. 269-6099
  • Mfr. Part No. EZC100H3020
Each
Kr. 3 454,77(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON MCB, 1+N, 32A Curve B, 230V AC
  • RS Stock No. 238-3197
  • Mfr. Part No. 5SL6032-6MC
Each
Kr. 1 610,95(exc. VAT)
Temporarily out of stock
Eaton Terminal for use with INX16, INX40, IZMX16, IZMX40
  • RS Stock No. 239-880
  • Mfr. Part No. 184239 IZMX-SEC-TB2-F-1
Each
Kr. 634,92(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 63A, Breaking Capacity 18.5 kA, Fixed Mount
  • RS Stock No. 230-243
  • Mfr. Part No. 107661 NZMB2-S63-BT-CNA
Each
Kr. 6 692,40(exc. VAT)
Temporarily out of stock
xEnergy Basic Distribution Board Enclosure
  • RS Stock No. 253-133
  • Mfr. Part No. 195324 BPM-O-1100/8-P-EP
Each
Kr. 10 953,57(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 160A, Breaking Capacity 55 kA
  • RS Stock No. 209-6913
  • Mfr. Part No. 3VA2116-5JQ32-0AA0
Each
Kr. 25 650,77(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller series NZM MCCB Molded Case Circuit Breaker 3P 200A, Breaking Capacity 25 kA, Plug In
  • RS Stock No. 230-861
  • Mfr. Part No. 113028 NZMB2-A200-KCU-NA
Each
Kr. 16 347,76(exc. VAT)
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