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

1772 of 999+
Temporarily out of stock
Lovato ModuLo P1MB MCB, 4P, 1A Curve B, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 825-5908
  • Mfr. Part No. P1MB4PB01
Each
€151.98(exc. VAT)
Temporarily out of stock
Schneider Electric Cross Elbow Busbar Trunking, 290 → 1200mm, 630A, Canalis Series
  • RS Stock No. 335-030
  • Mfr. Part No. KSA630DMBK43F
Each
€3,135.09(exc. VAT)
Temporarily out of stock
ABB PS2 2 Phase Busbar, 400V
  • RS Stock No. 231-9636
  • Mfr. Part No. 2CDL220001R1612 PS2/12/16
1 Box of 1
€19.78(exc. VAT)
In Stock
Eaton Eaton Distribution Parts Fitting-Sleeve Pliers for use with Circuit Breaker
  • RS Stock No. 229-944
  • Mfr. Part No. 114324 Z-D0-PE-Z
1 Pack of 10
€54.80(exc. VAT)
Temporarily out of stock
Siemens SENTRON Cable
  • RS Stock No. 277-0881
  • Mfr. Part No. 3WA9111-0BB42
Each
€181.64(exc. VAT)
Temporarily out of stock
ABB Tmax XT Trip Unit for use with Tmax XT
  • RS Stock No. 236-6569
  • Mfr. Part No. 1SDA068046R1 DCL EKIP G-LS/I IN=160A XT
Each
€714.56(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller Series NZM MCCB Molded Case Circuit Breaker 3P 26A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 240-638
  • Mfr. Part No. 103050 NZMH2-S26-CNA
Each
€585.00(exc. VAT)
In Stock
ABB SMISSLINE TP MCB, 4P, 40A Curve K, 415V AC
  • RS Stock No. 246-2692
  • Mfr. Part No. 2CCS573103R8557
Each
€233.30(exc. VAT)
Temporarily out of stock
Better World
Siemens Sentron for use with 3VA1 And 3VA20 Up To 3VA25
  • RS Stock No. 226-2844
  • Mfr. Part No. 3VA9988-0BL31
Each
€71.92(exc. VAT)
Temporarily out of stock
Schneider Electric, PowerPact MCCB 4P 90A, Breaking Capacity 35 kA, Clip-On
  • RS Stock No. 341-127
  • Mfr. Part No. BGF46090
Each
€1,426.40(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 160A, Breaking Capacity 5 kA, Plug In
  • RS Stock No. 229-918
  • Mfr. Part No. 113251 NZMN2-M160-SVE
Each
€1,155.00(exc. VAT)
Temporarily out of stock
Eaton xEffect RCCB, 100A, 2 Pole, 100mA, Type F, 240V ac
  • RS Stock No. 246-624
  • Mfr. Part No. 187376 FRCMM-100/2/01-G/F
Each
€902.00(exc. VAT)
Temporarily out of stock
ABB S802C MCB, 2P, 50A Curve D, 415V AC, 25 kA Breaking Capacity
  • RS Stock No. 141-122
  • Mfr. Part No. 2CCS882001R0501
Each
€142.06(exc. VAT)
In Stock
Schneider Electric Acti9 Busbar, 415V ac, 18mm Pitch
  • RS Stock No. 466-543
  • Mfr. Part No. A9XPH320
1 Pack of 5
€387.70(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 2P 32A, Breaking Capacity 36 kA, DIN Rail Mount
  • RS Stock No. 271-9887
  • Mfr. Part No. 3VA1132-4ED22-0AA0
Each
€207.70(exc. VAT)
Temporarily out of stock
Eaton xEffect FAZ MCB, 1P, 2.5A Curve B, 230V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 259-177
  • Mfr. Part No. 278524 FAZ-B2,5/1
Each
€25.60(exc. VAT)
Temporarily out of stock
ABB SMISSLINE TP MCB, 2P, 1.6A Curve K, 240V AC
  • RS Stock No. 246-2533
  • Mfr. Part No. 2CCS571103R8257
Each
€101.53(exc. VAT)
Temporarily out of stock
Eaton Eaton Moeller NZM Undervoltage Release for use with N1(-4), NZM1(-4)
  • RS Stock No. 254-094
  • Mfr. Part No. 259436 NZM1-XU48AC
Each
€141.00(exc. VAT)
Temporarily out of stock
ABB SMISSLINE TP MCB, 2P, 500mA Curve C, 415V AC
  • RS Stock No. 246-2604
  • Mfr. Part No. 2CCS572001R0984
Each
€100.97(exc. VAT)
In Stock
Better World
ABB System Pro M Compact S200 MCB, 1P, 1A Curve K, 253V AC, 72V DC, 20 kA Breaking Capacity
  • RS Stock No. 514-0080
  • Mfr. Part No. 2CDS251001R0217 S201-K1
Each
€33.83(exc. VAT)
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1772
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