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

35874 Products showing for Circuit Breakers

113 of 999+
In Stock
Better World
Schneider Electric Busbar Trunking Hook, Canalis KBB Series
  • RS Stock No. 219-8869
  • Mfr. Part No. KBB40ZFC5
Each (In a Pack of 10)
TWD163.90(exc. GST)
In Stock
Better World
Siemens Sentron 5SY4 MCB, 1P, 10A Curve B, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 383-1964
  • Mfr. Part No. 5SY4110-6
Each
TWD381.00(exc. GST)
Temporarily out of stock
NZM Circuit Breaker for use with Circuit Breaker
  • RS Stock No. 253-189
  • Mfr. Part No. 192361 NZMH3-PX400
Each
TWD135,282.00(exc. GST)
Temporarily out of stock
Schneider Electric, Vigilohm, POWERTAG, 10W, Wired
  • RS Stock No. 428-713
  • Mfr. Part No. IMDIFL12H
Each
TWD229,481.00(exc. GST)
In Stock
ETA Thermal Circuit Breaker - 3120-N 5 Pole 50 V DC, 240 V AC Voltage Rating, 10A Current Rating
  • RS Stock No. 210-2084
  • Mfr. Part No. 3120-N551-H7T1-W02D-10A
Each
TWD914.00(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1.6kA Ekip G Hi-Touch LSIG, 4 channels
  • RS Stock No. 259-3646
  • Mfr. Part No. 1SDA071620R1
Each
TWD472,098.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric TeSys Thermal Circuit Breaker - TeSyS GV 3 Pole 690V ac Voltage Rating, 3.5A Current Rating
  • RS Stock No. 175-1492
  • Mfr. Part No. GV4P03N
Each
TWD42,182.00(exc. GST)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 3.2kA Ekip Touch LI, 3 channels
  • RS Stock No. 259-3256
  • Mfr. Part No. 1SDA071154R1
Each
TWD561,023.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 16A, Breaking Capacity 16 kA, DIN Rail Mount
  • RS Stock No. 271-9626
  • Mfr. Part No. 3VA10962ED420AA0
Each
TWD15,619.00(exc. GST)
Temporarily out of stock
Siemens SENTRON Wire Connector for use with 3VA4/5 125
  • RS Stock No. 269-7089
  • Mfr. Part No. 3VA9133-0JK11
Each (In a Pack of 3)
TWD2,744.00(exc. GST)
In Stock
Eaton xEffect MCB, 1P, 4A Curve C, 240 → 415V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 922-6894
  • Mfr. Part No. 102082 FAZ-C4/1-NA
Each
TWD1,279.00(exc. GST)
Temporarily out of stock
Eaton Blanking Strip for use with Bf Flat Distribution Board, Eco Distribution Board, Ewk Distribution Board, Klv
  • RS Stock No. 241-537
  • Mfr. Part No. 178977 BS-12MB-WH
1 Pack of 10
TWD1,256.00(exc. GST)
Temporarily out of stock
Eaton xEffect MCB, 3+N, 6A Curve B, 415V AC, 60V DC, 6 kA Breaking Capacity
  • RS Stock No. 230-0922
  • Mfr. Part No. 239155 FAZ6-B6/3N
Each
TWD2,094.00(exc. GST)
Temporarily out of stock
Eaton xEffect FAZ MCB, 3P, 6A Curve C, 415V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 241-221
  • Mfr. Part No. 102284 FAZ-C6/3-RT
Each
TWD8,736.00(exc. GST)
In Stock
Better World
Schneider Electric Multi 9 C60SP MCB, 3P, 32A Curve B, 440V AC, 15 kA Breaking Capacity
  • RS Stock No. 211-2345
  • Mfr. Part No. M9F21332
Each
TWD6,523.00(exc. GST)
In Stock
Better World
Siemens SENTRON 5SL4 MCB, 2P, 3A Curve B, 400V AC, 72V DC
  • RS Stock No. 210-3354
  • Mfr. Part No. 5SL4203-6
Each
TWD2,426.00(exc. GST)
Temporarily out of stock
Siemens SENTRON Support for use with Busbar System
  • RS Stock No. 211-3868
  • Mfr. Part No. 8US1998-7CA10
Each (In a Pack of 10)
TWD240.50(exc. GST)
Temporarily out of stock
Better World
Schneider Electric TeSys Thermal Circuit Breaker - TeSyS GV 3 Pole 690V ac Voltage Rating, 80A Current Rating
  • RS Stock No. 175-1445
  • Mfr. Part No. GV4L80B
Each
TWD21,122.00(exc. GST)
In Stock
Omron Busbar
  • RS Stock No. 111-3544
  • Mfr. Part No. PYDN-15.5-080S
Each
TWD151.00(exc. GST)
Temporarily out of stock
Phoenix Contact Thermal Magnetic Circuit Breaker - TMC 2 Pole 65V dc Voltage Rating DIN Rail, 2A Current Rating
  • RS Stock No. 135-502
  • Mfr. Part No. 0914811
1 Pack of 3
TWD16,636.00(exc. GST)
1
113
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