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

1156 of 999+
Temporarily out of stock
Schneider Electric Acti9 A9V5 MCB, 4P, 63A, Type A, 400-415V AC
  • RS Stock No. 212-175
  • Mfr. Part No. A9V51463
Each
$1,367.98(exc. GST)
Temporarily out of stock
Schneider Electric RCBO, 32A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 654-737
  • Mfr. Part No. A9DF4632
Each
$937.74(exc. GST)
Temporarily out of stock
Eaton xComfort KLV Distribution Board Enclosure, 2 Way
  • RS Stock No. 125-108
  • Mfr. Part No. 178836 KLV-48HWM-F
Each
$798.91(exc. GST)
Temporarily out of stock
Eaton Eaton Moeller Enclosure for use with PKZM0
  • RS Stock No. 272-2325
  • Mfr. Part No. 262682 CI-K2-PKZ0-NA-GV
Each
$53.06(exc. GST)
Temporarily out of stock
Lovato 3 Phase Surge Protector, 40kA
  • RS Stock No. 216-8309
  • Mfr. Part No. SG2DGK10M3
Each
$563.45(exc. GST)
Temporarily out of stock
Lovato 3 Phase Surge Protector, 50kA
  • RS Stock No. 216-8302
  • Mfr. Part No. SG23NA300
Each
$728.00(exc. GST)
Temporarily out of stock
Schneider Electric Acti9 A9N1 MCB, 1P, 100A Curve B, 230-400V AC, 144V DC, 4.5 kA Breaking Capacity
  • RS Stock No. 212-214
  • Mfr. Part No. A9N18403
Each
$268.60(exc. GST)
Temporarily out of stock
Lovato 1 Phase Surge Protector, 50kA
  • RS Stock No. 216-8286
  • Mfr. Part No. SA0B1NA320R
Each
$797.65(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 800A Ekip G Touch LSIG, 3 channels
  • RS Stock No. 259-4026
  • Mfr. Part No. 1SDA072097R1
Each
$13,736.44(exc. GST)
Temporarily out of stock
Eaton Circuit Breaker - NZM..-ME..NA 3 Pole 690V ac Voltage Rating, 140A Current Rating
  • RS Stock No. 250-9759
  • Mfr. Part No. 142425 NZMH2-ME140-BT-NA
Each
$5,352.68(exc. GST)
In Stock
Schneider Electric Acti9 iC60 RCCB, 10A, 4 Pole, 30mA, Type C, 380 → 415V ac
  • RS Stock No. 110-280
  • Mfr. Part No. A9D77410
Each
$2,960.19(exc. GST)
Temporarily out of stock
Schneider Electric, PowerPact B Circuit breaker 4P 60A, Breaking Capacity 14 KA, Clip-On
  • RS Stock No. 119-192
  • Mfr. Part No. BDL46060LU
Each
$2,341.69(exc. GST)
Temporarily out of stock
Schneider Electric Multi9 M9F1 MCB, 2P, 2A Curve D, 440V AC, 125V DC, 6 kA Breaking Capacity
  • RS Stock No. 212-128
  • Mfr. Part No. M9F12202
Each
$372.41(exc. GST)
Temporarily out of stock
Phoenix Contact PTCB Electronic Circuit Breaker 630mA 24V PTCB E1, 1 channels , DIN Rail
  • RS Stock No. 518-985
  • Mfr. Part No. 1464486
Each
$52.39(exc. GST)
Temporarily out of stock
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 3P 40A, Breaking Capacity 2.5 kA
  • RS Stock No. 245-689
  • Mfr. Part No. 3VA6140-6KT31-0AA0
Each
$7,739.58(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 800A Ekip G Hi-Touch LSIG, 3 channels
  • RS Stock No. 259-4157
  • Mfr. Part No. 1SDA072270R1
Each
$22,710.74(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 4kA Ekip Hi-Touch LSI, 3 channels
  • RS Stock No. 259-4378
  • Mfr. Part No. 1SDA072559R1
Each
$55,680.38(exc. GST)
In Stock
Schneider Electric RCBO, 20A Current Rating, 3P Poles, 30mA Trip Sensitivity, Type C, Resi9 Range
  • RS Stock No. 130-504
  • Mfr. Part No. R9PDCS20
Each
$1,249.85(exc. GST)
In Stock
Appliance Safety Switch/Thermal
  • RS Stock No. 577-470
  • Mfr. Part No. 2-5700-IG1-P10-5A
Each
$31.89(exc. GST)
In Stock
Schneider Electric Resi9 Resi9 XE DM MCB, 1P, 6A Curve C, 230V AC, 3000 A Breaking Capacity
  • RS Stock No. 287-6044
  • Mfr. Part No. R9EFC606
Each
$92.24(exc. GST)
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