Electronic Circuit Breakers

Electronic circuit breakers are automatically operated electrical switches that are designed to protect an electrical circuit from damage. They cut off a circuit whenever the current jumps above a safe level.

How electronic circuit breakers work

Electronic circuit breakers prevent an overload or short circuit. Their basic function is to keep an electrical system running safely by interrupting the flow of current when a fault is detected. They do this by a combination of active electronic current limitation in the case of a short circuit and an overload deactivation.

Why electronic circuit breakers are important

In homes, there's usually a main electronic circuit breaker that protects the whole system, plus smaller circuit breakers built into many domestic appliances such as washing machines, tumble dryers and air-conditioning systems.

Without circuit breakers (or the alternative, fuses), household electricity would be impractical because of the potential for fires and other issues resulting from simple wiring problems and equipment failures. Compared to fuses, which only work once and then require replacment, circuit breakers can be used over and over again.


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Description Price Range Series Number of Channels Current Rating Breaking Capacity Rated DC Voltage Mounting Style Length Width Depth
RS Stock No. 890-2913
Mfr. Part No.PM-0824-240-0
BrandBlock
HK$1,488.23
Each
units
- POWER MINI - 0.5 → 6 A - 24V DIN Rail Mount 90mm 45mm 99mm
RS Stock No. 890-2907
Mfr. Part No.PM-0724-400-0
BrandBlock
HK$772.02
Each
units
- POWER MINI - 2 → 10 A - 24V DIN Rail Mount - - -
RS Stock No. 723-4843
Mfr. Part No.ESX10-TB-101-DC24V-2A
BrandETA
HK$898.49
Each
units
- ESX10-T - 2 A - - - - - -
RS Stock No. 723-4847
Mfr. Part No.ESX10-TB-101-DC24V-4A
BrandETA
HK$898.49
Each
units
- ESX10-T - 4 A - - - - - -
RS Stock No. 723-4856
Mfr. Part No.ESX10-TB-101-DC24V-6A
BrandETA
HK$924.16
Each
units
- ESX10-T - 6 A - - - - - -
RS Stock No. 890-2901
Mfr. Part No.PC-0724-800-0
BrandBlock
HK$1,288.85
Each
units
- POWER COMPACT - 2 → 10 A - 24V DIN Rail Mount - - -
RS Stock No. 723-4853
Mfr. Part No.ESX10-TB-101-DC24V-10A
BrandETA
HK$924.16
Each
units
- ESX10-T - 10 A - - - - - -
RS Stock No. 890-3796
Mfr. Part No.2905743
HK$1,762.04
Each
units
- - - - - - DIN Rail 130mm 41mm 121mm
RS Stock No. 729-2871
Mfr. Part No.ESX10-TB-102-DC24V-1A
BrandETA
HK$882.02
Each
units
- ESX10-T - 1 A - - - - - -
RS Stock No. 631-9120
Mfr. Part No.ESS20-003-DC24V-3A/6A
BrandETA
HK$1,404.72
Each
units
- - - 3 A, 3/6 A - - - - - -
RS Stock No. 179-2989
Mfr. Part No.2081880000
HK$193.37
Each
units
- - - 120 mA - 24V DIN Rail Mount 12.2mm 96.5mm 125mm
RS Stock No. 729-2883
Mfr. Part No.ESX10-TB-102-DC24V-3A
BrandETA
HK$912.91
Each
units
- ESX10-T - 3 A - - - - - -
RS Stock No. 890-2904
Mfr. Part No.PM-0724-200-0
BrandBlock
HK$763.37
Each
units
- POWER MINI - 2 → 10 A - 24V DIN Rail Mount - - -
RS Stock No. 914-4626
Mfr. Part No.2CDE601101R2012
BrandABB
HK$1,746.54
Each
units
- EPD24 - 12 A - 24V DIN Rail Mount - - -
RS Stock No. 177-6027
Mfr. Part No.787-2861/200-000
BrandWago
HK$521.75
Each
units
EPSITRON 787-2861 1 2 A 15 A 30V DIN Rail Mount 94mm 6mm 97.8mm
RS Stock No. 768-1101
Mfr. Part No.2800916
HK$348.15
Each
units
- - - - - - - - - -
RS Stock No. 177-6030
Mfr. Part No.787-2861/800-000
BrandWago
HK$521.75
Each
units
EPSITRON 787-2861 1 8 A 15 A 30V DIN Rail Mount 94mm 6mm 97.8mm
RS Stock No. 914-4604
Mfr. Part No.2CDE601101R2002
BrandABB
HK$1,487.66
Each
units
- EPD24 - 2 A - 24V DIN Rail Mount - - -
RS Stock No. 179-2997
Mfr. Part No.2080490000
HK$216.40
Each
units
- - 1 25 mA - 24V DIN Rail Mount 6.1mm 96.5mm 125mm
RS Stock No. 890-2917
Mfr. Part No.PC-0824-480-0
BrandBlock
HK$2,469.67
Each
units
- POWER COMPACT - 0.5 → 6 A - 24V DIN Rail Mount - - -
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