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

38220 Products showing for Circuit Breakers

265 of 999+
In Stock
Hager Incoming Power Terminal for use with KBN663A Busbars, KBN663C Busbars
  • RS Stock No. 144-4694
  • Mfr. Part No. KF83D
Each (In a Pack of 4)
Kr. 65,985(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 50A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 269-794
  • Mfr. Part No. 3VA5250-7ED31-1AA0
Each
Kr. 12 247,66(exc. VAT)
Temporarily out of stock
WEG CWC0 Busbar
  • RS Stock No. 122-1283
  • Mfr. Part No. ECC0-SD
Each
Kr. 146,78(exc. VAT)
Temporarily out of stock
Eaton NZM Adapter for use with Circuit Breaker
  • RS Stock No. 256-885
  • Mfr. Part No. 281666 NZM2-XKR4
Each
Kr. 263,12(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 5 kA, Plug In
  • RS Stock No. 249-021
  • Mfr. Part No. 191619 NZMN2-VX100-SVE
Each
Kr. 12 443,06(exc. VAT)
Temporarily out of stock
Schurter TA36 Rocker Circuit Breaker - TA36 Single Pole 32 V dc, 277 V ac Voltage Rating, 16A Current Rating
  • RS Stock No. 221-5598
  • Mfr. Part No. 3-128-212
1 Box of 50
Kr. 5 963,56(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 800A, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 257-558
  • Mfr. Part No. 3VA5580-5EC32-1AA0
Each
Kr. 47 373,04(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 630A, Breaking Capacity 9 kA, Withdrawable
  • RS Stock No. 230-048
  • Mfr. Part No. 110854 NZMH3-VE630-AVE
Each
Kr. 49 363,60(exc. VAT)
Temporarily out of stock
Eaton RCBO, 16A Current Rating, 1P + N Poles, 300mA Trip Sensitivity, Type D, xPole Range
  • RS Stock No. 251-169
  • Mfr. Part No. 193549 PXK-D16/1N/03-F
Each
Kr. 2 379,52(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 16A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 209-5064
  • Mfr. Part No. 3VA1196-6ED32-0AA0
Each
Kr. 4 044,04(exc. VAT)
Temporarily out of stock
NZM Circuit Breaker for use with Circuit Breaker
  • RS Stock No. 256-021
  • Mfr. Part No. 262514 FAZ/FIP-XAWM
Each
Kr. 9 289,28(exc. VAT)
Temporarily out of stock
ABB Plastic Consumer Unit, IP65 1SLM006501A
  • RS Stock No. 286-4980
  • Mfr. Part No. 1SLM006501A2214
Each
Kr. 996,22(exc. VAT)
In Stock
Eaton Circuit Breaker - NZM..-ME..NA 3 Pole 690V ac Voltage Rating, 90A Current Rating
  • RS Stock No. 250-9706
  • Mfr. Part No. 118967 NZMH2-ME90-NA
Each
Kr. 21 837,82(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 160A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 209-4908
  • Mfr. Part No. 3VA1116-3EE32-0AA0
Each
Kr. 9 093,31(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 80A, Breaking Capacity 7.5 kA, Fixed Mount
  • RS Stock No. 254-846
  • Mfr. Part No. 265734 NZMN1-S80
Each
Kr. 4 781,92(exc. VAT)
In Stock
ETA Thermal Circuit Breaker - 1610 Single Pole 32V dc Voltage Rating, 15A Current Rating
  • RS Stock No. 409-895
  • Mfr. Part No. 1610-21-15A
Each
Kr. 144,46(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 270-043
  • Mfr. Part No. 3VA6110-6KP31-2AA0
Each
Kr. 27 961,65(exc. VAT)
Temporarily out of stock
Eaton IKA Industrial Distribution Board Distribution Board
  • RS Stock No. 125-750
  • Mfr. Part No. 174192 IKA-3/36-ST-UV
Each
Kr. 2 733,06(exc. VAT)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 800A Ekip Dip LSI, 3 channels
  • RS Stock No. 259-9915
  • Mfr. Part No. 1SDA070762R1
Each
Kr. 56 816,10(exc. VAT)
In Stock
Schneider Electric Acti9 iID RCCB, 63A, 4 Pole, 500mA, Type A-SI, 380 → 415V ac
  • RS Stock No. 654-692
  • Mfr. Part No. A9R37463
Each
Kr. 9 429,15(exc. VAT)
1
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