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

23551 Products showing for Circuit Breakers

70 of 999+
In Stock
Better World
Schneider Electric Surge Protector, 24 → 250V dc, Clip-On Mount
  • RS Stock No. 817-5323
  • Mfr. Part No. LAD4DDL
Each
$41.80(exc. GST)
Temporarily out of stock
Schneider Electric, PowerPact MCCB 2P 25A, Breaking Capacity 18 kA, Clip-On
  • RS Stock No. 345-253
  • Mfr. Part No. BDF26025
Each
$1,242.98(exc. GST)
Temporarily out of stock
Schneider Electric, ComPact MCCB, DIN Rail Mount
  • RS Stock No. 346-881
  • Mfr. Part No. TRV00211
Each
$5,779.14(exc. GST)
Temporarily out of stock
Eaton Eaton Moeller Series NZM Connection Unit for use with N(S)1, NZM1, PN1
  • RS Stock No. 254-570
  • Mfr. Part No. 266734 NZM1-XKR
Each
$184.06(exc. GST)
Unavailable
Schneider Electric, NSX MCCB 4P 630A, Breaking Capacity 50 kA, Fixed Mount
  • RS Stock No. 219-8375
  • Mfr. Part No. LV432808
Each
$8,232.12(exc. GST)
Temporarily out of stock
Eaton Eaton xComfort IKA Distribution Block for use with Installation Distribution Board
  • RS Stock No. 246-618
  • Mfr. Part No. 187357 IKA-C-1/12-ST-LID
Each
$352.65(exc. GST)
In Stock
WAGO Electronic Circuit Breaker 0.5 → 4A 24V 787, 1 channels , DIN Rail
  • RS Stock No. 303-323
  • Mfr. Part No. 787-3861/004-1020
Each
$105.90(exc. GST)
In Stock
Schneider Electric Distribution Block for use with Compact, Kaedra, Pragma, Prisma-G, Prisma-P, Prisma-Pack, Prisma-PH,
  • RS Stock No. 822-7953
  • Mfr. Part No. LGY412548
Each
$83.82(exc. GST)
Temporarily out of stock
Better World
Siemens SENTRON Electronic Circuit Breaker 250A 3VA, 4 channels
  • RS Stock No. 156-727
  • Mfr. Part No. 3VA2325-5JP42-0AA0
Each
$7,676.68(exc. GST)
Temporarily out of stock
Schneider Electric ComPacT Key Lock for use with ComPact NS630b To NS1600, Rotary Handle Locking
  • RS Stock No. 245-074
  • Mfr. Part No. 33868
Each
$77.85(exc. GST)
Temporarily out of stock
Phoenix Contact 1 Phase Surge Arrester, DIN Rail Mount
  • RS Stock No. 131-796
  • Mfr. Part No. 2920230
Each
$568.12(exc. GST)
Temporarily out of stock
Better World
Siemens SIRIUS Electronic Circuit Breaker 2.5A 3RV2, 3 channels , DIN Rail Mount
  • RS Stock No. 160-210
  • Mfr. Part No. 3RV2421-1CA10
Each
$480.66(exc. GST)
Temporarily out of stock
Hager BF RCD, 40A, 2 Pole, 300mA, Type A-HI, 500V
  • RS Stock No. 599-761
  • Mfr. Part No. BF242
Each
$811.12(exc. GST)
Temporarily out of stock
Siemens SENTRON 5SY4 MCB, 2P, 80A Curve C, 230V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 610-588
  • Mfr. Part No. 5SY4580-7
Each
$364.54(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT New Generation MCCB 3P 20A, Breaking Capacity 100 kA, Screw Mount
  • RS Stock No. 244-920
  • Mfr. Part No. BJL36020LU
Each
$3,229.89(exc. GST)
In Stock
ABB S-ARC1 M MCB, 1+N, 6A Curve B, 240V AC, 10 kA Breaking Capacity
  • RS Stock No. 175-9933
  • Mfr. Part No. 2CSA275901R9065 S-ARC1 M B6
Each
$533.90(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 100A, Fixed Mount
  • RS Stock No. 260-7653
  • Mfr. Part No. C11N3TM100B
Each
$1,596.50(exc. GST)
Temporarily out of stock
Siemens SENTRON Busbar
  • RS Stock No. 265-561
  • Mfr. Part No. 8US1922-1CA02
1 Pack of 10
$277.96(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1.25kA 1SDA07, 4 channels
  • RS Stock No. 259-3636
  • Mfr. Part No. 1SDA071610R1
Each
$27,096.74(exc. GST)
Temporarily out of stock
Better World
Siemens SIRIUS Electronic Circuit Breaker 400mA 3RV2, 3 channels , DIN Rail Mount
  • RS Stock No. 160-760
  • Mfr. Part No. 3RV2411-0EA20
Each
$437.65(exc. GST)
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