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

39187 Products showing for Circuit Breakers

39 of 999+
Temporarily out of stock
Hager NRN MCB, 3P, 25A Curve C, 415V AC, 25 kA Breaking Capacity
  • RS Stock No. 597-946
  • Mfr. Part No. NRN325
Each
€227.22(exc. VAT)
Temporarily out of stock
ABB S800S MCB, 2P, 32A Curve B, 240V AC, 50 kA Breaking Capacity
  • RS Stock No. 141-232
  • Mfr. Part No. 2CCS862001R0325
Each
€183.81(exc. VAT)
In Stock
Eaton MCB, 1+N, 2A Curve C
  • RS Stock No. 230-1095
  • Mfr. Part No. 264690 PLG6-C2/1N
Each
€18.45(exc. VAT)
In Stock
ABB System Pro M Compact S200M MCB, 3P, 25A Curve B, 440V AC, 10 kA Breaking Capacity
  • RS Stock No. 535-6112
  • Mfr. Part No. 2CDS273001R0255 S203M-B25
Each
€95.83(exc. VAT)
Temporarily out of stock
ABB S403M MCB, 3P, 32A Curve K, 440V AC, 12V DC, 15 kA Breaking Capacity
  • RS Stock No. 140-709
  • Mfr. Part No. 2CCS573001R0537
Each
€176.70(exc. VAT)
Temporarily out of stock
ABB S803N MCB, 3P, 32A Curve C, 690V AC, 36 kA Breaking Capacity
  • RS Stock No. 140-929
  • Mfr. Part No. 2CCS893001R0324
Each
€228.61(exc. VAT)
In Stock
Better World
ABB SN201 MCB, 1+N, 2A, 230V AC, 6 kA Breaking Capacity
  • RS Stock No. 231-9969
  • Mfr. Part No. 2CSS255101R0024 SN201-C2 -
1 Box of 1
€40.08(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON 5SY6 MCB, 2P, 50A Curve B, 400V AC, 72V DC, 5 kA Breaking Capacity
  • RS Stock No. 212-9015
  • Mfr. Part No. 5SY6250-6
Each
€125.83(exc. VAT)
In Stock
Carling Technologies Thermal Circuit Breaker - CLB Single Pole 250V Voltage Rating Panel Mount, 15A Current Rating
  • RS Stock No. 881-1079
  • Mfr. Part No. CLB-153-11A3N-B-A
Each (In a Pack of 10)
€4.422(exc. VAT)
In Stock
Better World
Schneider Electric Multi 9 MCB Mini Circuit Breaker, 3P, 45A Curve C, 277V AC
  • RS Stock No. 256-6764
  • Mfr. Part No. M9F22345
Each
€300.21(exc. VAT)
Temporarily out of stock
Hager MCCB 4P 125A, Breaking Capacity 2 kA, DIN Rail Mount
  • RS Stock No. 144-4931
  • Mfr. Part No. HCA126H
Each
€543.86(exc. VAT)
In Stock
Eaton Surge Protector, 110 → 230 V dc, 110 → 415V ac, DIN Rail Mount
  • RS Stock No. 847-3673
  • Mfr. Part No. 278519 FAZ-XAA-C-110-415VAC
Each
€66.14(exc. VAT)
Temporarily out of stock
Eaton 380 → 440V ac/dc Shunt Trip Shunt trip for use with N(S)1(-4) Series, NZM1(-4) Series
  • RS Stock No. 454-8225
  • Mfr. Part No. 259728 NZM1-XA380-440AC/DC
Each
€123.55(exc. VAT)
In Stock
Siemens SENTRON Connection Unit for use with Circuit Breaker Busbar
  • RS Stock No. 269-8414
  • Mfr. Part No. 8US1261-5MS13
Each
€80.15(exc. VAT)
In Stock
ABB System Pro M Compact S200M MCB, 3P, 10A Curve C, 440V AC, 12V DC, 10 kA Breaking Capacity
  • RS Stock No. 535-4267
  • Mfr. Part No. 2CDS273001R0104 S203M-C10
Each
€95.83(exc. VAT)
In Stock
Better World
ABB System Pro M Compact S200 MCB, 1P, 10A, Type Z, 253V AC, 72V DC, 20 kA Breaking Capacity
  • RS Stock No. 225-5995
  • Mfr. Part No. 2CDS251001R0428 S201 Z 10A - 10 KA
Each
€40.02(exc. VAT)
In Stock
ABB System Pro M Compact S200M MCB, 3P, 25A Curve D, 400V AC, 15 kA Breaking Capacity
  • RS Stock No. 746-8181
  • Mfr. Part No. 2CDS273001R0251 S203M-D25
Each
€105.12(exc. VAT)
Temporarily out of stock
Phoenix Contact Thermal Circuit Breaker - TCP 2A Single Pole 65 V dc, 250V ac Voltage Rating, 2A Current Rating
  • RS Stock No. 170-3786
  • Mfr. Part No. 0712217
Each (In a Box of 20)
€17.174(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON 5SY6 MCB, 2P, 40A Curve C, 400V AC, 72V DC, 5 kA Breaking Capacity
  • RS Stock No. 212-8963
  • Mfr. Part No. 5SY6240-7
Each
€119.56(exc. VAT)
In Stock
ABB High Performance S800C MCB, 3P, 63A Curve C, 400 V, 415 V AC, 25 kA Breaking Capacity
  • RS Stock No. 231-9578
  • Mfr. Part No. 2CCS883001R0634 S803C C 63A - 25 KA
Each
€196.82(exc. VAT)
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