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

39197 Products showing for Circuit Breakers

6 of 999+
In Stock
TE Connectivity Thermal Circuit Breaker - W54 Single Pole 250V ac Voltage Rating, 20A Current Rating
  • RS Stock No. 782-7988
  • Mfr. Part No. W54-XB1A4A10-20
Each
€4.46(exc. VAT)
In Stock
Allen Bradley 1492 1492-SPM MCB, 1P, 15A Curve C, 277V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 125-1459
  • Mfr. Part No. 1492-SPM1C150
Each
€22.91(exc. VAT)
In Stock
Better World
Schneider Electric Acti9 Acti9 iDT40K MCB, 1+N, 10A Curve C, 230V AC, 4.5 kA Breaking Capacity
  • RS Stock No. 238-3411
  • Mfr. Part No. A9P71610
Each
€23.06(exc. VAT)
Temporarily out of stock
Better World
ABB SN201 MCB, 1P, 25A Curve D
  • RS Stock No. 237-1424
  • Mfr. Part No. 2CSS255101R0251
Each
€32.91(exc. VAT)
In Stock
Eaton 110 → 130V ac Undervoltage Release Circuit Trip for use with N(S)2(-4) Series, N(S)3(-4) Series, NZM2(-4)
  • RS Stock No. 537-5624
  • Mfr. Part No. 259589 NZM2/3-XUHIV110-130AC
Each
€202.45(exc. VAT)
In Stock
RS PRO MCB, 1P, 10A Curve C, 240 → 415V AC, 6 kA Breaking Capacity
  • RS Stock No. 265-0188
Each
€9.71(exc. VAT)
In Stock
Phoenix Contact Busbar
  • RS Stock No. 290-1258
  • Mfr. Part No. 0402174
Each
€12.37(exc. VAT)
Temporarily out of stock
ABB Tmax XT Undervoltage Release for use with Tmax XT
  • RS Stock No. 237-6060
  • Mfr. Part No. 1SDA066400R1 UVR-C XT1..XT4 F/P 380-440
Each
€156.15(exc. VAT)
In Stock
Eaton RCD, 6A, 2 Pole, 30mA, Type B
  • RS Stock No. 922-8695
  • Mfr. Part No. 236012 PKNM-6/1N/B/003-A-MW
Each
€224.89(exc. VAT)
In Stock
Eaton Connection Kit for use with Circuit Breaker
  • RS Stock No. 282-7120
  • Mfr. Part No. 266744 NZM1-XIPK
Each
€20.19(exc. VAT)
In Stock
ETA Thermal Circuit Breaker - 2 5700 Single Pole 250V Voltage Rating Panel Mount, 20A Current Rating
  • RS Stock No. 729-2773
  • Mfr. Part No. 2-5700-IG2-P10-DD-000040-20A
Each
€27.60(exc. VAT)
In Stock
Better World
Schneider Electric RCBO, 10A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Acti 9 Range
  • RS Stock No. 790-9276
  • Mfr. Part No. A9D19810
Each
€157.93(exc. VAT)
Temporarily out of stock
Eaton xEffect FAZ MCB, 1P, 25A Curve D, 230V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 259-566
  • Mfr. Part No. 278586 FAZ-D25/1
Each
€54.50(exc. VAT)
In Stock
Contactum RCBO, 6A Current Rating, 1P Poles, 30mA Trip Sensitivity, Type B, CCPBR Range
  • RS Stock No. 240-6382
  • Mfr. Part No. CCPBR0606AB
Each
€28.44(exc. VAT)
In Stock
ABB System Pro M Compact S200M MCB, 1P, 16A Curve C, 253V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 535-4150
  • Mfr. Part No. 2CDS271001R0164 S201M-C16
Each
€22.01(exc. VAT)
In Stock
Better World
Schneider Electric Multi 9 C60SP MCB, 2P, 16A Curve D, 440V AC, 125V DC, 15 kA Breaking Capacity
  • RS Stock No. 211-2396
  • Mfr. Part No. M9F23216
Each
€38.00(exc. VAT)
In Stock
Better World
ABB System Pro M Compact S200 MCB, 3P, 63A Curve B, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 746-7611
  • Mfr. Part No. 2CDS253001R0635 S203-B63
Each
€85.80(exc. VAT)
In Stock
ABB SA1 Padlock Adapter for use with S 260-270-280
  • RS Stock No. 455-2662
  • Mfr. Part No. GJF1101903R0001 SA1
Each
€6.13(exc. VAT)
In Stock
Allen Bradley 1492 1492-SPM MCB, 1P, 6A Curve C, 277V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 125-1456
  • Mfr. Part No. 1492-SPM1C060
Each
€22.91(exc. VAT)
In Stock
Contactum MCB, 3P, 63A Curve D, 415V AC, 10 kA Breaking Capacity
  • RS Stock No. 184-9055
  • Mfr. Part No. CPB1063D3
Each
€21.16(exc. VAT)
Results per page
1
6
1960

Related links