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

212 of 999+
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 1.25kA Ekip Hi-Touch LSI, 3 channels
  • RS Stock No. 259-3117
  • Mfr. Part No. 1SDA070969R1
Each
$21,372.64(exc. GST)
Temporarily out of stock
Eaton xEnergy Door for use with xEnergy Light LV Systems
  • RS Stock No. 272-0726
  • Mfr. Part No. 174308 XLSD5S1485
Each
$857.85(exc. GST)
Temporarily out of stock
ABB SMISSLINE Busbar for Smissline TP
  • RS Stock No. 246-2310
  • Mfr. Part No. 2CCF800223R0001
Each
$11.74(exc. GST)
Temporarily out of stock
Better World
Schneider Electric, Masterpact MCCB 3P 2.5kA, Fixed Mount
  • RS Stock No. 248-3805
  • Mfr. Part No. LV848301
Each
$49,891.63(exc. GST)
In Stock
Schneider Electric, ComPacT MCCB 3P 25A, Fixed Mount
  • RS Stock No. 260-7523
  • Mfr. Part No. C11B3TM025L
Each
$1,044.29(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 2.5kA 1SDA07, 4 channels
  • RS Stock No. 259-3735
  • Mfr. Part No. 1SDA071710R1
Each
$38,582.24(exc. GST)
Temporarily out of stock
Sensata Airpax Airpax Thermal Circuit Breaker - R11 Single Pole Panel Mount, 5A Current Rating
  • RS Stock No. 275-0457
  • Mfr. Part No. R11-2-5.00A-B06CV-V
Each
$28.49(exc. GST)
Temporarily out of stock
Siemens SENTRON 5SL64 MCB, 4P, 32A Curve B, 440V AC, 62.5V DC, 6 kA Breaking Capacity
  • RS Stock No. 328-382
  • Mfr. Part No. 5SL6432-6
Each
$291.93(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 450A, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 257-182
  • Mfr. Part No. 3VA5445-5EC41-0AA0
Each
$6,794.62(exc. GST)
Temporarily out of stock
Phoenix Contact Surge Protector, DIN Rail Mount
  • RS Stock No. 207-2738
  • Mfr. Part No. 2906823
Each
$273.72(exc. GST)
Temporarily out of stock
Eaton NZM Undervoltage Release for use with N(S)1(-4), NZM1(-4)
  • RS Stock No. 123-094
  • Mfr. Part No. 171800 NZM1-XUHIV18DC
Each
$431.63(exc. GST)
Temporarily out of stock
Phoenix Contact Electronic Device Circuit Breaker Electronic Circuit breaker 6A 24V CB, 1 channels
  • RS Stock No. 212-8805
  • Mfr. Part No. 2800919
Each
$99.81(exc. GST)
In Stock
Better World
ABB System Pro M Compact S200 MCB, 3P, 40A Curve C, 400V AC, 12V DC, 6 kA Breaking Capacity
  • RS Stock No. 746-7781
  • Mfr. Part No. 2CDS253001R0404 S203-C40
Each
$131.24(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1.6kA Ekip Touch LI, 4 channels
  • RS Stock No. 259-4688
  • Mfr. Part No. 1SDA072964R1
Each
$16,429.06(exc. GST)
Temporarily out of stock
Phoenix Contact Thermal Circuit Breaker - Single Pole 250V ac Voltage Rating On Base Element, 16A Current Rating
  • RS Stock No. 267-1717
  • Mfr. Part No. 1324402
Each
$40.23(exc. GST)
Temporarily out of stock
Phoenix Contact Surge Protector, DIN Rail Mount
  • RS Stock No. 131-221
  • Mfr. Part No. 2907043
Each
$447.85(exc. GST)
Temporarily out of stock
Phoenix Contact Surge Protector, DIN Rail Mount
  • RS Stock No. 135-805
  • Mfr. Part No. 2798530
Each (In a Pack of 10)
$186.239(exc. GST)
In Stock
Better World
ABB System Pro M Compact S200 MCB, 1P, 1A Curve C, 230V AC, 72V DC, 6 kA Breaking Capacity
  • RS Stock No. 746-7646
  • Mfr. Part No. 2CDS251001R0014 S201-C1
Each
$41.73(exc. GST)
Temporarily out of stock
Phoenix Contact 3 Phase Surge Protector, 2kV, DIN Rail Mount
  • RS Stock No. 890-3720
  • Mfr. Part No. 2905469
Each
$2,157.39(exc. GST)
Temporarily out of stock
Phoenix Contact 1 Phase Surge Arrester, DIN Rail Mount
  • RS Stock No. 135-970
  • Mfr. Part No. 2908551
Each (In a Pack of 10)
$123.979(exc. GST)
1
212
1190
Results per page

Related links