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

14 of 999+
In Stock
ETA Thermal Circuit Breaker - 1658 Single Pole 250V Voltage Rating Panel Mount, 15A Current Rating
  • RS Stock No. 273-0882
  • Mfr. Part No. 1658-G21-02-P10-15A
Each
€5.83(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 40A, Breaking Capacity 15 kA, Fixed Mount
  • RS Stock No. 254-082
  • Mfr. Part No. 259095 NZMH2-A40
Each
€492.00(exc. VAT)
In Stock
Better World
Schneider Electric Multi 9 C60N MCB, 2P, 2A Curve C, 10 kA Breaking Capacity
  • RS Stock No. 214-2060
  • Mfr. Part No. M9F11202
Each
€88.05(exc. VAT)
In Stock
Better World
Siemens SENTRON MCB, 1P, 10A Curve B, 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 189-3187
  • Mfr. Part No. 5SL6110-6
Each
€4.87(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Multi 9 C60BP MCB, 2P, 6A Curve D, 440V AC, 125V DC, 15 kA Breaking Capacity
  • RS Stock No. 211-2446
  • Mfr. Part No. M9F43206
Each
€109.25(exc. VAT)
In Stock
ABB RCBO, 63A Current Rating, 2P Poles, Type B
  • RS Stock No. 237-5048
  • Mfr. Part No. 2CSR252001R1635
Each
€291.66(exc. VAT)
In Stock
Eaton RCBO, 20A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, PXK Range
  • RS Stock No. 183-3546
  • Mfr. Part No. 236965 PXK-C20/1N/003-A
Each
€76.97(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric RCBO, 32A Current Rating, 3P+N Poles, 300mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 238-3269
  • Mfr. Part No. A9DA7732
Each
€302.10(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 iC60N MCB, 1P, 10A Curve C, 100 → 133V AC, 12 → 48V DC, 6 kA Breaking Capacity
  • RS Stock No. 790-8853
  • Mfr. Part No. A9F44110
Each
€22.14(exc. VAT)
Temporarily out of stock
Schneider Electric 12 Way Metal Consumer Unit, 100A, IP2X, IP3X EZ9E
  • RS Stock No. 654-186
  • Mfr. Part No. EZ9E12MCCU
Each
€69.88(exc. VAT)
In Stock
Siemens SENTRON 1 Phase Busbar, 27mm Pitch
  • RS Stock No. 202-7204
  • Mfr. Part No. 5ST3703
Each
€39.90(exc. VAT)
In Stock
Eaton RCCB, 63A, 2 Pole, 30mA, Type A, 230V ac
  • RS Stock No. 227-0738
  • Mfr. Part No. 267448 PFGM-63/2/003-A
Each
€79.73(exc. VAT)
In Stock
Eaton RCD, 32A, 2 Pole, 30mA, Type C
  • RS Stock No. 922-8752
  • Mfr. Part No. 236305 PKNM-32/1N/C/003-MW
Each
€159.96(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 C120N MCB, 3P, 100A Curve C, 440V AC, 375V DC, 10 kA, 20 kA Breaking Capacity
  • RS Stock No. 776-3073
  • Mfr. Part No. A9N18367
Each
€563.32(exc. VAT)
In Stock
Schneider Electric Acti 9 MCB, 1P, 20A Curve C, 230V AC, 7.5 kA Breaking Capacity
  • RS Stock No. 200-6154
  • Mfr. Part No. A9PE2620
Each
€42.00(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric iDPN RCD, 32A, 1+N Pole, 300mA, Type B, 220 → 240V ac
  • RS Stock No. 790-9487
  • Mfr. Part No. A9D69632
Each
€207.41(exc. VAT)
In Stock
RS PRO MCB, 3P, 6A Curve C, 240 → 415V AC, 10 kA Breaking Capacity
  • RS Stock No. 265-0209
Each
€34.04(exc. VAT)
Temporarily out of stock
Eaton xEffect MCB, 3P, 63A Curve B, 240 → 415V AC, 10 kA Breaking Capacity
  • RS Stock No. 847-3197
  • Mfr. Part No. 278853 FAZ-B63/3
Each
€140.22(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT New Generation MCCB 3P 30A, Breaking Capacity 100 kA, Screw Mount
  • RS Stock No. 245-166
  • Mfr. Part No. BJL36030LU
Each
€504.61(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON 5SL4 MCB, 1+N, 4A Curve B, 230V AC, 72V DC
  • RS Stock No. 210-3378
  • Mfr. Part No. 5SL4504-6
Each
€67.87(exc. VAT)
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