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

1734 of 999+
Temporarily out of stock
Better World
Siemens SENTRON 5SY6 MCB, 1P, 13A Curve C, 6 kA Breaking Capacity
  • RS Stock No. 203-2270
  • Mfr. Part No. 5SY6113-7
Each
TWD936.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 25A, Breaking Capacity 70 kA, Fixed Mount
  • RS Stock No. 271-9871
  • Mfr. Part No. 3VA1125-6GD46-0AA0
Each
TWD18,768.00(exc. GST)
In Stock
Better World
Siemens RCBO, 16A Current Rating, 2P Poles, 30mA Trip Sensitivity, Sentron Range
  • RS Stock No. 225-8823
  • Mfr. Part No. 5SV1316-7LK16
Each
TWD4,188.00(exc. GST)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 1kA, Breaking Capacity 37 kA, Fixed Mount
  • RS Stock No. 253-609
  • Mfr. Part No. 265925 NZMH4-4-AE1000/630
Each
TWD309,773.00(exc. GST)
In Stock
Europa EUC1P EUB MCB, 1P, 40A Curve B, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 849-6487
  • Mfr. Part No. EUC1P40B
Each
TWD268.00(exc. GST)
In Stock
Better World
Schneider Electric Compact Ins, Compact Insj, Compact Inv, Compact Nsx, Easypact Cvs Spreader for use with Compact Nsx
  • RS Stock No. 221-1234
  • Mfr. Part No. LV432491
Each
TWD4,164.00(exc. GST)
In Stock
Better World
Siemens Sentron 5SY6 MCB, 2P, 2A Curve C, 400V AC, 72V DC, 6 kA Breaking Capacity
  • RS Stock No. 196-3625
  • Mfr. Part No. 5SY6202-7
Each
TWD1,912.00(exc. GST)
Temporarily out of stock
Eaton 120V60HZ), MSC-DE-12-M17-SP(110V50HZ Electronic Circuit Breaker 16.7A , DIN Rail
  • RS Stock No. 120-888
  • Mfr. Part No. 167804 MSC-DE-12-M17-SP(110V50HZ,120V60HZ)
Each
TWD11,530.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 40A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 270-4642
  • Mfr. Part No. 3VA2140-6KQ42-0AA0
Each
TWD87,567.00(exc. GST)
In Stock
ABB DS201 RCCB, 40A, 2 Pole, 30mA, Type C, 240V
  • RS Stock No. 289-1626
  • Mfr. Part No. 2CSR255480R1404
Each
TWD7,531.00(exc. GST)
Temporarily out of stock
Eaton IZMX/INX Door Sealing Frame for use with INX16…W, IZMX16…W
  • RS Stock No. 132-394
  • Mfr. Part No. 184138 IZMX-DEG16-W-1
Each
TWD6,647.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB 3P 1kA, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 270-4776
  • Mfr. Part No. 3VA2510-5JP32-0AA0
Each
TWD460,221.00(exc. GST)
Temporarily out of stock
Better World
ABB, Tmax XT MCCB 4P 160A, Fixed Mount
  • RS Stock No. 236-6798
  • Mfr. Part No. 1SDA068539R1 XT4H 160 Ekip I 160A FF
Each
TWD46,715.00(exc. GST)
Temporarily out of stock
Hager Hager NSN Circuit Breaker, 4P, 50A Curve D, 415V AC, 15 kA Breaking Capacity
  • RS Stock No. 599-728
  • Mfr. Part No. NSN450
Each
TWD20,185.00(exc. GST)
Temporarily out of stock
Better World
Siemens SENTRON 3VA1 MCB, 1P, 100A
  • RS Stock No. 224-7787
  • Mfr. Part No. 3VA1110-4ED16-0AA0
Each
TWD9,354.00(exc. GST)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 0.002kA, Breaking Capacity 37 kA, Fixed Mount
  • RS Stock No. 254-548
  • Mfr. Part No. 265931 NZMH4-4-AE1600/1000
Each
TWD502,341.00(exc. GST)
In Stock
ABB S202M Circuit Breaker, 2P, 4A Curve K, 440V AC, 440V DC, 10 kA Breaking Capacity
  • RS Stock No. 287-6363
  • Mfr. Part No. 2CDS272061R0337
Each
TWD5,198.00(exc. GST)
Temporarily out of stock
ABB RCBO, 32A Current Rating, 1P+N Poles
  • RS Stock No. 231-9881
  • Mfr. Part No. 2CSA255901R9325 S-ARC1 B32
Each
TWD8,480.00(exc. GST)
Temporarily out of stock
Eaton xPole - PXL PXL MCB, 1P, 10A Curve C, 440V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 254-637
  • Mfr. Part No. 236685 PXL-C10-DC
Each
TWD2,747.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 40A, Breaking Capacity 25 kA, DIN Rail Mount
  • RS Stock No. 271-9318
  • Mfr. Part No. 3VA1140-3GF42-0AA0
Each
TWD17,861.00(exc. GST)
1
1734
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