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

39184 Products showing for Circuit Breakers

309 of 999+
Temporarily out of stock
ABB System Pro M Compact S300P MCB, 2P, 8A Curve C, 415V AC, 125V DC, 25 kA Breaking Capacity
  • RS Stock No. 200-905
  • Mfr. Part No. 2CDS382001R0084
Each
€81.46(exc. VAT)
In Stock
Better World
Siemens SENTRON 5SY6 MCB, 3P, 6A Curve B, 400V AC, 72V DC, 5 kA Breaking Capacity
  • RS Stock No. 212-9016
  • Mfr. Part No. 5SY6306-6
Each
€92.62(exc. VAT)
Temporarily out of stock
ABB, Tmax XT MCCB 4P 8A, Fixed Mount
  • RS Stock No. 236-7366
  • Mfr. Part No. 1SDA067568R1 XT2S 160 TMD 8A FF
Each
€374.60(exc. VAT)
In Stock
Phoenix Contact Surge Protector, DIN Rail Mount
  • RS Stock No. 207-2736
  • Mfr. Part No. 2906810
Each
€147.61(exc. VAT)
Temporarily out of stock
ABB Front Terminal for use with XT2 Cables
  • RS Stock No. 192-0880
  • Mfr. Part No. 1SDA067164R1
Each
€89.64(exc. VAT)
Temporarily out of stock
HENSEL 1, 3 Phase Distribution Board, 54 Way, 63 A
  • RS Stock No. 183-2863
  • Mfr. Part No. KV9354M
Each
€344.03(exc. VAT)
In Stock
TE Connectivity Thermal Circuit Breaker - W23 Single Pole 50 V dc, 250V ac Voltage Rating, 5A Current Rating
  • RS Stock No. 782-0886
  • Mfr. Part No. W23-X1A1G-5
Each
€39.44(exc. VAT)
Temporarily out of stock
Better World
ABB System Pro M Compact S200 MCB, 4P, 20A Curve B, 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 746-7621
  • Mfr. Part No. 2CDS254001R0205 S204-B20
Each
€185.82(exc. VAT)
Temporarily out of stock
Eaton Eaton xEffect SASY 60i Busbar, 690V
  • RS Stock No. 231-717
  • Mfr. Part No. 107210 BBS-3/FL-185
Each
€55.70(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SY8 MCB, 3P, 300mA Curve D, 400V AC, 70 kA Breaking Capacity
  • RS Stock No. 610-619
  • Mfr. Part No. 5SY8414-8
Each
€324.00(exc. VAT)
Temporarily out of stock
ABB S800S MCB, 4P, 32A Curve K, 240V AC, 50 kA Breaking Capacity
  • RS Stock No. 140-764
  • Mfr. Part No. 2CCS864001R0537
Each
€417.27(exc. VAT)
Unavailable
Schneider Electric, ComPact MCCB Molded Case Circuit Breaker 3P 630A, Fixed Mount
  • RS Stock No. 221-1037
  • Mfr. Part No. LV432901
Each
€5,026.19(exc. VAT)
Temporarily out of stock
Eaton IZMX/INX Electronic Circuit Breaker 2kA , 4 channels , Fixed
  • RS Stock No. 132-736
  • Mfr. Part No. 183791 IZMX40N4-P20W-1
Each
€19,418.00(exc. VAT)
Temporarily out of stock
ABB F200 RCCB, 63A, 2 Pole, 30mA, Type A, 230/400V ac
  • RS Stock No. 177-5053
  • Mfr. Part No. 2CSF202401R1630 F202 A-63/0,03 AP-R
Each
€276.63(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SJ4205 MCB, 2P, 500mA Curve C, 400V AC, 60V DC, 14 kA Breaking Capacity
  • RS Stock No. 299-955
  • Mfr. Part No. 5SJ4205-7HG41
Each
€136.44(exc. VAT)
Temporarily out of stock
Siemens RCCB, 25A, 2 Pole, 30mA, Type A, 230V
  • RS Stock No. 269-9755
  • Mfr. Part No. 5SV3322-6KK60
Each
€504.38(exc. VAT)
Temporarily out of stock
Siemens Alpha Assembly Kit for use with Three And Four-Pole Circuit Breaker
  • RS Stock No. 216-4803
  • Mfr. Part No. 8GK4704-4KK13
Each
€427.42(exc. VAT)
Temporarily out of stock
Schneider Electric, Vigilohm, POWERTAG, 10W, Wired
  • RS Stock No. 428-713
  • Mfr. Part No. IMDIFL12H
Each
€5,989.41(exc. VAT)
In Stock
Allen Bradley 1492-SP 1492-SPM MCB, 2P, 15A Curve B
  • RS Stock No. 218-8789
  • Mfr. Part No. 1492-SPM2B150
Each
€44.29(exc. VAT)
In Stock
ABB System Pro M Compact S200L MCB, 1P, 16A Curve C, 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 183-3626
  • Mfr. Part No. 2CDS241701R0164
Each
€18.62(exc. VAT)
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