3 Pole MCCB Under Voltage Trip Circuit Breaker 250A High Performance

Delivery Time:20 days and depends on ordering quantity
Certification:CE

3 Pole MCCB Under Voltage Trip Circuit Breaker 250A High Performance

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.

Description:

UKM30L series earth leakage circuit breaker are one of the new type earth leakage breakers which have been developed by the company using international advanced design and manufacturing technology. Suitable for a line of AC50Hz/60Hz, rated voltage up to 400V, rated current16A to 630A. And is acted as infrequent changeover of circuit or infrequent starting of motor. The breaker has overload, short-circuit and under-voltage protective function, which can protect the circuit and the power equipment against damage, meanwhile, it can provide protection to these fire dangers that caused by these long-time existed grounding fault that can not be detected by the over-current protection.

Specifications:

Frame rated current	100	250	400
Model	UKM30L-100S	UKM30L-250S	UKM30L-400S
Ratedcurrent In(A)	16,25,32,40,50,63,75,100	100,125,150,175,200,225,250	250,300,350,400
Poles	3  4	3  4	3  4
Ratedvoltage Ui(V)	AC690.50HZ	AC690.50HZ	AC690.50HZ
Ratedvoltage Ue(V)	AC400.50HZ	AC400.50HZ	AC400.50HZ
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 Earth Leakage Circuit Breaker can operate at the following working conditions:

A. Ambient air temperature no more than +40º C and no less than -5º C

B. Altitude no more than 2000m

C. The relative air humidity is no more than 50% in the max. Temperature: +40º C. The higher relative humidity is allowable at the lower temperature. The min. Monthly means at the most moist month be no more than +25º C. The max. Monthly relative humidity at the most moist month be no more than 90%.

D. Pollution degree: Grade III. There is no explosion factor, corrosive metal and the gas destroying the insulation and the electric dust full of the ambient atmosphere.

E. Installation type: III

F. The terminals of\" 1, 3, 5, N1\" is to connect to the power supply and the terminals of\"2, 4, 6, N2\"s to connect to the negative load.

Overcurrent Protection Curve: