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

23782 Products showing for Circuit Breakers

192 of 999+
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 160A, Fixed Mount
  • RS Stock No. 260-7700
  • Mfr. Part No. C12H4TM160B
Each
$3,680.11(exc. GST)
Temporarily out of stock
Eaton Eaton xEnergy Main Busbar Support for use with Busbar
  • RS Stock No. 259-155
  • Mfr. Part No. 283869 XBSB324
Each
$612.19(exc. GST)
Temporarily out of stock
Schurter Thermal Circuit Breaker - T13 Single Pole 240V ac Voltage Rating, 30A Current Rating
  • RS Stock No. 173-9851
  • Mfr. Part No. 4411.0027
Each (In a Box of 20)
$38.906(exc. GST)
In Stock
Better World
ABB System Pro M Compact S200 MCB, 3P, 10A Curve D, 440V AC, 12V DC, 6 kA Breaking Capacity
  • RS Stock No. 527-9582
  • Mfr. Part No. 2CDS253001R0101 S203-D10
Each
$171.26(exc. GST)
Temporarily out of stock
Phoenix Contact Surge Protector, 10kA, DIN Rail Mount
  • RS Stock No. 201-6556
  • Mfr. Part No. 2906744
Each
$318.55(exc. GST)
Temporarily out of stock
Hager Thermal Circuit Breaker - HAD 2P Pole Fixed, 45A Current Rating
  • RS Stock No. 602-095
  • Mfr. Part No. HDA245
Each
$250.70(exc. GST)
In Stock
ABB SN201 MCB, 1+N, 16A Curve D, 230V AC, 6 kA Breaking Capacity
  • RS Stock No. 186-3488
  • Mfr. Part No. 470663
Each
$83.71(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB 3P 300A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 256-557
  • Mfr. Part No. 3VA5330-6EC31-2AA0
Each
$8,441.61(exc. GST)
Temporarily out of stock
Siemens SENTRON 1 Phase Busbar, 18mm Pitch
  • RS Stock No. 213-2558
  • Mfr. Part No. 5ST3632
Each (In a Pack of 10)
$18.334(exc. GST)
In Stock
Siemens SENTRON 1 Phase Busbar, 18mm Pitch
  • RS Stock No. 202-7094
  • Mfr. Part No. 5ST3630
Each (In a Pack of 10)
$6.072(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT New generation MCCB 4P 160A, Breaking Capacity 440 V, Fixed Mount
  • RS Stock No. 205-206
  • Mfr. Part No. C16F47E160
Each
$11,676.70(exc. GST)
Temporarily out of stock
Eaton xComfort Distribution Board Enclosure, 24 Way
  • RS Stock No. 256-894
  • Mfr. Part No. 283048 BF-U-3/72-C
Each
$1,638.77(exc. GST)
Temporarily out of stock
Eaton Eaton Moeller xPole 4 Phase Busbar, 415V
  • RS Stock No. 256-797
  • Mfr. Part No. 274161 EVG-3P+3N/18MODUL
Each
$68.02(exc. GST)
Temporarily out of stock
Siemens SENTRON Terminal for use with Pin Busbars
  • RS Stock No. 202-7132
  • Mfr. Part No. 5ST3768
Each (In a Pack of 25)
$18.566(exc. GST)
Temporarily out of stock
Eaton Eaton xEnergy Main Busbar Support for use with Busbar
  • RS Stock No. 258-890
  • Mfr. Part No. 284749 XBSN32
Each
$173.54(exc. GST)
Temporarily out of stock
Better World
Siemens SENTRON Electronic Circuit Breaker 100A 3VA2, 3 channels
  • RS Stock No. 157-245
  • Mfr. Part No. 3VA2110-5HK32-0AA0
Each
$1,696.02(exc. GST)
In Stock
ABB System Pro M Compact S200 MCB, 4P, 40A Curve C, 440V AC, 10 kA Breaking Capacity
  • RS Stock No. 183-3646
  • Mfr. Part No. 2CDS254001R0404
Each
$384.60(exc. GST)
In Stock
Better World
Siemens Sentron 5SY4 MCB, 1P, 16A Curve D, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 772-1256
  • Mfr. Part No. 5SY4116-8
Each
$127.36(exc. GST)
In Stock
Better World
Schneider Electric, ComPacT New Generation Circuit breaker 3P 100A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 254-6286
  • Mfr. Part No. C10F3TM100
Each
$1,043.48(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 160A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 209-5135
  • Mfr. Part No. 3VA2116-6HL46-0AA0
Each
$3,652.83(exc. GST)
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