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

23542 Products showing for Circuit Breakers

74 of 999+
Temporarily out of stock
Vigi iC60 - earth leakage add-on block -
  • RS Stock No. 248-3706
  • Mfr. Part No. A9V15263
Each
$761.05(exc. GST)
Temporarily out of stock
Schneider Electric Panelset Busbar
  • RS Stock No. 444-414
  • Mfr. Part No. NSYTBCN368
Each
$4,032.58(exc. GST)
Temporarily out of stock
Eaton NZM Jumper Link for use with N2-4-160(200)-S1(-S15)-DC
  • RS Stock No. 120-240
  • Mfr. Part No. 168591 NZM2-4-XKV1P
Each
$860.86(exc. GST)
Temporarily out of stock
Eaton NZMC3 Electronic Circuit Breaker 500A , 4 channels , Fixed
  • RS Stock No. 121-333
  • Mfr. Part No. 168469 NZMC3-4-A500/320-SVE
Each
$7,879.15(exc. GST)
Temporarily out of stock
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 3 kA
  • RS Stock No. 245-296
  • Mfr. Part No. 3VA6210-8HM31-0AA0
Each
$6,189.16(exc. GST)
Temporarily out of stock
Schneider Electric Acti9 Acti9 iC60 MCB, 4P, 63A, Type A, 500V AC, 30 mA Breaking Capacity
  • RS Stock No. 429-220
  • Mfr. Part No. A9V71463
Each
$3,455.43(exc. GST)
Temporarily out of stock
Siemens SENTRON 5SY Circuit Breaker, 3P, 16A Curve D, 440V AC, 72V DC, 30 kA Breaking Capacity
  • RS Stock No. 664-315
  • Mfr. Part No. 5SY8316-8BB08
Each
$303.50(exc. GST)
Temporarily out of stock
Siemens SENTRON Conversion Kit
  • RS Stock No. 277-0922
  • Mfr. Part No. 3WA9111-0EK13
1 Set
$452.39(exc. GST)
Temporarily out of stock
Siemens SENTRON Connection Kit
  • RS Stock No. 277-0823
  • Mfr. Part No. 3WA9111-0AV24
Each
$225.35(exc. GST)
In Stock
Siemens SIRIUS 3 Phase Busbar, 690V, 45mm Pitch
  • RS Stock No. 246-5162
  • Mfr. Part No. 3RV1915-1DB
Each
$116.28(exc. GST)
Temporarily out of stock
Siemens SENTRON Operations Counter
  • RS Stock No. 277-0755
  • Mfr. Part No. 3WA9111-0AH05
Each
$994.11(exc. GST)
Temporarily out of stock
Siemens SENTRON 5SV60 MCB, 1P + N, 25A Curve B, 230V AC, 6 kA Breaking Capacity
  • RS Stock No. 328-477
  • Mfr. Part No. 5SV6016-6KP25
Each
$520.89(exc. GST)
Temporarily out of stock
Phoenix Contact Surge Protector, 6kA, 264V ac, Base Mounting Mount
  • RS Stock No. 496-914
  • Mfr. Part No. 1634908
Each (In a Pack of 50)
$291.943(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 63A, Fixed Mount
  • RS Stock No. 260-9481
  • Mfr. Part No. C10H4TM063
Each
$2,240.35(exc. GST)
Temporarily out of stock
Siemens SENTRON Busbar Connector, 450V
  • RS Stock No. 211-3831
  • Mfr. Part No. 5ST3781-2
Each (In a Pack of 10)
$26.089(exc. GST)
Temporarily out of stock
Schneider Electric Acti9 3 Phase Distribution Board, 16 Way, 250 A
  • RS Stock No. 244-940
  • Mfr. Part No. SE48B250
Each
$1,632.61(exc. GST)
In Stock
RS PRO Three Phase Industrial Surge Protector, 50kA, 1.35kV, DIN Rail Mount
  • RS Stock No. 101-795
Each
$845.47(exc. GST)
Temporarily out of stock
Siemens SENTRON 5SY7 MCB, 3P, 2A Curve D, 400V AC, 60V DC, 50 kA Breaking Capacity
  • RS Stock No. 610-389
  • Mfr. Part No. 5SY7302-8
Each
$463.76(exc. GST)
Temporarily out of stock
Schneider Electric Tee Elbow Busbar Trunking, 290mm, 630A, Canalis Series
  • RS Stock No. 354-309
  • Mfr. Part No. KSA630DTC40
Each
$3,364.97(exc. GST)
Temporarily out of stock
Schneider Electric Acti 9 iC60N MCB, 3P, 2A Curve C
  • RS Stock No. 230-6661
  • Mfr. Part No. A9F44302
Each
$71.82(exc. GST)
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