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

35874 Products showing for Circuit Breakers

53 of 999+
Temporarily out of stock
Schneider Electric, ComPacT New Generation MCCB 1P 20A, Breaking Capacity 65 kA, Screw Mount
  • RS Stock No. 207-189
  • Mfr. Part No. BGL16020
Each
TWD12,914.00(exc. GST)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 160A, Breaking Capacity 5 kA, Plug In
  • RS Stock No. 249-037
  • Mfr. Part No. 192179 NZMH2-PX160-SVE
Each
TWD82,482.00(exc. GST)
Temporarily out of stock
Eaton xEffect - FRCmM RCCB, 80A, 2 Pole, 30mA, 240V ac
  • RS Stock No. 123-268
  • Mfr. Part No. 170386 FRCMM-80/2/003-G/A
Each
TWD18,136.00(exc. GST)
In Stock
Better World
Schneider Electric Acti 9 Acti9 iDT40N MCB, 4P, 63A Curve C, 10 kA Breaking Capacity
  • RS Stock No. 191-6102
  • Mfr. Part No. A9P24463
Each
TWD13,683.00(exc. GST)
Temporarily out of stock
Schneider Electric Altivar Process Modular Busbar Kit
  • RS Stock No. 119-414
  • Mfr. Part No. VW3A99ACFCB
Each
TWD21,507.00(exc. GST)
Temporarily out of stock
Hager BDC RCCB, 125A, 2P Pole, 30mA, Type AC
  • RS Stock No. 602-055
  • Mfr. Part No. BDC280E
Each
TWD28,078.00(exc. GST)
In Stock
Eaton MCCB 3P 63A, Breaking Capacity 80 kA, Fixed Mount
  • RS Stock No. 628-8048
  • Mfr. Part No. 259140 PN1-63
1 Box of 1
TWD7,828.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 50A, Breaking Capacity 55 kA
  • RS Stock No. 209-7000
  • Mfr. Part No. 3VA1150-5ED32-0AA0
Each
TWD15,316.00(exc. GST)
In Stock
Schneider Electric C120 A9N Circuit Breaker, 2P, 100A, Type AC, 415V AC, 250V DC, 10 kA Breaking Capacity
  • RS Stock No. 288-7114
  • Mfr. Part No. A9N18346
Each
TWD23,846.00(exc. GST)
In Stock
Schneider Electric Acti 9 Bell Transformer for use with Canalis
  • RS Stock No. 247-1920
  • Mfr. Part No. A9A15216
Each
TWD3,045.00(exc. GST)
In Stock
ABB F200 RCCB, 63A, 4 Pole, 100mA, Type A, 230/400V ac
  • RS Stock No. 177-5088
  • Mfr. Part No. 2CSF204201R2630 F204 A S-63/0,1
Each
TWD9,918.00(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 2kA Ekip Touch LI, 4 channels
  • RS Stock No. 259-4727
  • Mfr. Part No. 1SDA073004R1
Each
TWD398,355.00(exc. GST)
Temporarily out of stock
ABB Tmax XT Trip Unit for use with Tmax XT
  • RS Stock No. 236-6567
  • Mfr. Part No. 1SDA068044R1 DCL EKIP G-LS/I IN=63A XT4
Each
TWD26,226.00(exc. GST)
Temporarily out of stock
ABB MCCB Molded Case Circuit Breaker 4P 320A, Fixed Mount
  • RS Stock No. 250-4091
  • Mfr. Part No. 1SDA054360R1
Each
TWD182,640.00(exc. GST)
Temporarily out of stock
ABB 250V ac ON-OFF Switch Circuit Trip for use with E210 Switches
  • RS Stock No. 183-3691
  • Mfr. Part No. 2CCA703007R0001
Each
TWD1,019.00(exc. GST)
Temporarily out of stock
Siemens ALPHA Cover for use with ALPHA 630 DIN
  • RS Stock No. 229-9878
  • Mfr. Part No. 8GK9601-2KK30
Each (In a Pack of 10)
TWD4,567.90(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 50A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 271-9347
  • Mfr. Part No. 3VA1150-3GD42-0AA0
Each
TWD17,503.00(exc. GST)
In Stock
Eaton Busbar Adapter, 690V
  • RS Stock No. 250-9761
  • Mfr. Part No. 142528 BBA0K-32
Each
TWD1,878.00(exc. GST)
Temporarily out of stock
Phoenix Contact 3 Phase Surge Protector, DIN Rail Mount
  • RS Stock No. 207-2762
  • Mfr. Part No. 2907390
Each
TWD28,358.00(exc. GST)
In Stock
Better World
Schneider Electric Acti 9 A9N1 MCB, 1P, 100A Curve C
  • RS Stock No. 219-8291
  • Mfr. Part No. A9N18447
Each
TWD5,335.00(exc. GST)
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