Payment & Shipping Terms:
|Current Range:||250A 300A 350A 400A||Poles Available:||4P|
|Rated Working Voltage:||400VAC||Rated Insulation Voltage:||690VAC|
|Protection:||Earth Leakage||Breaking Capacity:||50/25|
Custom Miniature 4 Pole Molded Case Circuit Breaker 300A 350A 400A
UKM30L Series Earth Leakage Circuit Breaker is developed with hi-tech in 1990S with completed protection functions, high performance, smart dimension which is the ideal replacements for the olds.
The ELCB′s electric leakage(residual current) protection function offers indirect touch protection when person gets an deadly electric shock. It also can prevent the electrical fire as a result of over-current protection device which can′t detect the earthing fault.The ELCB′s rated residual operating current can be adjusted, electric leakage protection operating time also can be adjust, so it has selective protection in power distribution system.When the rated residual operating current is set up as 30mA, and the relevant protection device was failed,it also has the protection function of direct contact.
|Frame rated current||100||250||400|
|Poles||3 4||3 4||3 4|
|Rated limit short/service breaking capitily Icu/Ics(KA)||50/25||50/25||50/25|
|Rated Actuation residual current||30,100,300, 500mA||30,100,300,500mA||30,100,300,500mA|
|Ratedresidual non-operattion current||1/2In||1/2In||1/2In|
|Rated residual short-circuit making & breaking capacity||1/4Icu||1/4Icu||1/4Icu|
|Operation charateristic (times) ON / OFF||1500 / 8500||1000 / 7000||500 / 4000|
The main purpose of earth leakage protectors is to prevent injury to humans and animals due to electric shock.
An ELCB is a specialised type of latching relay that has a building's incoming mains power connected through its switching contacts so that the ELCB disconnects the power in an earth leakage (unsafe) condition.
The ELCB detects fault currents from live to the earth (ground) wire within the installation it protects. If sufficient voltage appears across the ELCB's sense coil, it will switch off the power, and remain off until manually reset. A voltage-sensing ELCB does not sense fault currents from live to any other earthed body.
The operation time of residual current protection:
A. How's the delivery time?
Depend on your quantity, usually within 20days after receiving deposit
B. Would you accept OEM/ODM service?
Glad to say that there is planning department, technical department and mould tooling center in
our factory. For the OEM & ODM, it is ok for us if your brand, market shares are great.
C. Would you offer free sample?
Samples are freely provided and shipping costs is paid on your end usually.
D What's your guaranty time?
At least 2 years and depend the product
E What's your payment term?
T/T, L/C; other terms is negotiable after further check