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

272 of 999+
Temporarily out of stock
Schneider Electric RCBO, 16A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 654-735
  • Mfr. Part No. A9DF3616
Each
Kr. 3 715,76(exc. VAT)
Temporarily out of stock
Siemens SENTRON Conversion Kit
  • RS Stock No. 277-0886
  • Mfr. Part No. 3WA9111-0BC13
Pr. Set
Kr. 29 579,26(exc. VAT)
In Stock
ABB, SACE Tmax T MCCB Molded Case Circuit Breaker 3P 400A, Breaking Capacity 70 kA, Fixed Mount
  • RS Stock No. 232-0095
  • Mfr. Part No. 1SDA054437R1 T5N400 FF TMA 400A
Each
Kr. 12 183,77(exc. VAT)
Temporarily out of stock
Eaton Moeller IZMX Electronic Circuit Breaker 6.3kA IZMX/INX, Withdrawable
  • RS Stock No. 262-311
  • Mfr. Part No. 303696 IZM-CAS633-6300-1
Each
Kr. 84 312,80(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 4kA Ekip Touch LSI, 4 channels
  • RS Stock No. 259-3843
  • Mfr. Part No. 1SDA071855R1
Each
Kr. 355 028,24(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller series NZM MCCB Molded Case Circuit Breaker 3P 400A, Breaking Capacity 9 kA, Plug In
  • RS Stock No. 231-669
  • Mfr. Part No. 110895 NZMH3-AE400-T
Each
Kr. 35 681,36(exc. VAT)
Temporarily out of stock
Siemens, Sentron MCCB Molded Case Circuit Breaker 3P 1kA, Breaking Capacity 35 kA
  • RS Stock No. 249-120
  • Mfr. Part No. 3VA6610-6JP32-0AA0
Each
Kr. 92 435,20(exc. VAT)
In Stock
ABB System Pro M Compact S200 M UC MCB, 3P, 8A Curve C, 400V AC, 440V DC, 10 kA Breaking Capacity
  • RS Stock No. 200-186
  • Mfr. Part No. 2CDS273061R0084
Each
Kr. 2 722,79(exc. VAT)
In Stock
TE Connectivity Thermal Circuit Breaker - W23 Single Pole 50 V dc, 250V ac Voltage Rating, 20A Current Rating
  • RS Stock No. 782-0864
  • Mfr. Part No. W23-X1A1G-20
Each
Kr. 365,28(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Compact Nsx, Compact Nsx Dc Mounting Plate for use with Compact Nsx 400/630
  • RS Stock No. 221-1250
  • Mfr. Part No. LV432533
Each
Kr. 1 478,96(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 40A, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 268-072
  • Mfr. Part No. 3VA6140-5JQ31-2AA0
Each
Kr. 26 806,21(exc. VAT)
In Stock
Schneider Electric TeSys Thermal Circuit Breaker - GB2 2 Pole 277V ac Voltage Rating DIN Rail Mount, 6A Current Rating
  • RS Stock No. 312-3831
  • Mfr. Part No. GB2DB12
Each
Kr. 627,37(exc. VAT)
In Stock
Siemens 90 → 110V ac Shunt Trip Circuit Trip for use with 3RV2 Series Circuit Breakers
  • RS Stock No. 706-1942
  • Mfr. Part No. 3RV2902-1DF0
Each
Kr. 453,02(exc. VAT)
Temporarily out of stock
Schneider Electric Acti9 A9N1 MCB, 1P, 100A Curve B, 230-400V AC, 144V DC, 4.5 kA Breaking Capacity
  • RS Stock No. 212-214
  • Mfr. Part No. A9N18403
Each
Kr. 1 242,16(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 600A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 257-706
  • Mfr. Part No. 3VA5460-6EC31-0AA0
Each
Kr. 36 627,45(exc. VAT)
Temporarily out of stock
Better World
ABB, Tmax XT MCCB 4P 20A, Fixed Mount
  • RS Stock No. 236-6587
  • Mfr. Part No. 1SDA068094R1 XT4N 160 TMD 20A FF
Each
Kr. 7 598,17(exc. VAT)
Temporarily out of stock
ABB SU 200 M Circuit Breaker, 2P, 25A Curve K, 440V AC, 96V DC, 15 kA Breaking Capacity
  • RS Stock No. 287-6396
  • Mfr. Part No. 2CDS272337R0517
Each
Kr. 1 701,15(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 iC60N MCB, 3P, 25A Curve C, 440V AC, 133V DC, 6 kA Breaking Capacity
  • RS Stock No. 776-6987
  • Mfr. Part No. A9F04325
Each
Kr. 1 594,62(exc. VAT)
In Stock
ETA Thermal Magnetic Circuit Breaker - 201 Single Pole, 1A Current Rating
  • RS Stock No. 333-237
  • Mfr. Part No. 201-1A
Each
Kr. 523,41(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S200M MCB, 3+N, 20A Curve B, 400V AC, 125V DC, 15 kA Breaking Capacity
  • RS Stock No. 200-794
  • Mfr. Part No. 2CDS273103R0205
Each
Kr. 1 990,36(exc. VAT)
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