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 at Maximum Voltage Rating Rated DC Voltage Mounting Style Length Width Depth
RS Stock No. 723-4843
Mfr. Part No.ESX10-TB-101-DC24V-2A
BrandETA
HK$751.14
Each
units
- ESX10-T - 2A - - - - - -
RS Stock No. 723-4847
Mfr. Part No.ESX10-TB-101-DC24V-4A
BrandETA
HK$770.23
Each
units
- ESX10-T - 4A - - - - - -
RS Stock No. 723-4856
Mfr. Part No.ESX10-TB-101-DC24V-6A
BrandETA
HK$794.06
Each
units
- ESX10-T - 6A - - - - - -
RS Stock No. 890-3796
Mfr. Part No.2905743
HK$1,693.28
Each
units
- - - - - - DIN Rail 130mm 41mm 121mm
RS Stock No. 723-4853
Mfr. Part No.ESX10-TB-101-DC24V-10A
BrandETA
HK$902.34
Each
units
- ESX10-T - 10A - - - - - -
RS Stock No. 729-2871
Mfr. Part No.ESX10-TB-102-DC24V-1A
BrandETA
HK$776.18
Each
units
- ESX10-T - 1A - - - - - -
New
RS Stock No. 212-8806
Mfr. Part No.2800923
HK$341.03
Each
units
Electronic Device Circuit Breaker CB 1 2A - 24V - - - -
New
RS Stock No. 212-8808
Mfr. Part No.2800924
HK$251.45
Each
units
Electronic Device Circuit Breaker CB 1 3A - 24V - - - -
New
RS Stock No. 210-2141
Mfr. Part No.ESX10-TB-114-DC24V-0.5A-E
BrandETA
HK$835.36
Each
units
- ESX10-T 1 0.5A - 24V - - - -
New
RS Stock No. 212-8809
Mfr. Part No.2800928
HK$334.39
Each
units
Electronic Device Circuit Breaker CB 1 10A - 24V - - - -
New
RS Stock No. 210-2143
Mfr. Part No.ESX10-TB-114-DC24V-2A-E
BrandETA
HK$835.36
Each
units
- ESX10-T 1 2A - 24V - - - -
RS Stock No. 201-5406
Mfr. Part No.2800901
HK$261.80
Each
units
- - - - - - - - - -
New
RS Stock No. 210-2119
Mfr. Part No.ESX10-TA-100-DC24V-0.5A-E
BrandETA
HK$746.64
Each
units
- ESX10-T 1 0.5A - 24V - - - -
RS Stock No. 201-6171
Mfr. Part No.2800903
HK$458.40
Each
units
- - - - - - - - - -
RS Stock No. 914-4626
Mfr. Part No.2CDE601101R2012
BrandABB
HK$1,713.07
Each
units
- - - - - - - - - -
RS Stock No. 179-2995
Mfr. Part No.2080480000
HK$220.02
Each
units
- maxGUARD 1 25mA - 24V DIN Rail Mount 6.1mm 96.5mm 125mm
RS Stock No. 179-3004
Mfr. Part No.2123050000
HK$230.00
1 Box of 10
Box(es)
- maxGUARD - - - - DIN Rail Mount 6.1mm 96.5mm 125mm
RS Stock No. 890-3806
Mfr. Part No.2905744
HK$2,869.27
Each
units
- CBM E8 24DC/0.5-10A NO-R - - - - DIN Rail 130mm 41mm 121mm
RS Stock No. 729-2880
Mfr. Part No.ESX10-TB-102-DC24V-2A
BrandETA
HK$794.06
Each
units
- ESX10-T - 2A - - - - - -
New
RS Stock No. 210-2129
Mfr. Part No.ESX10-TB-101-DC24V-10A-E
BrandETA
HK$964.20
Each
units
- ESX10-T 1 10A - 24V - - - -