350A Small Molded Case Circuit Breaker 4 Pole MCCB with Motor Distribution UKM30-400 manufacturer from China Zhejiang KRIPAL Electric Company

350A Small Molded Case Circuit Breaker 4 Pole MCCB with Motor Distribution

Place of Origin:

Zhejiang, China (Mainland)


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Product Detail

Model No.: UKM30-400

350A Small Molded Case Circuit Breaker 4 Pole MCCB with Motor Distribution

The UKM30 s

350A Small Molded Case Circuit Breaker 4 Pole MCCB with Motor Distribution

The UKM30 series molded case circuit breaker is high-tech products in 21st century with advanced design, high performance, pleasant apprearance and delicate dimension.

Description:

Molded Case Circuit Breakers UKM30 series (hereinafter called as UKM30 MCCB) is a new designed MCCB Developed and manufactured adopting international advanced technology. UKM30 MCCB rated insulating Voltage AC 800V is suitable for using in the circuit of AC 50Hz /60Hz, rated voltage up to 690V, rated Working current up to 2500A to distribute electric power and to protect the line and the equipment from being Damaged due to overload, short current and under-voltage. It can also be used for infrequently switch and Starting of motor and for motor overload, short circuit and under-voltage protections. UKM30 MCCB with the Advantages of the small volume, high breaking capacity, short over-arcing (some of specification is zero Arcing), strong anti-vibration and so on.

Specifications:

Type		UKM30-100S		UKM30-250S		UKM30-400S
Rated current In(A)		16,25,32,40,50, 63,75,100		100,125,150,175,200,225,250		250,300,350,400
Number of poles		3	4	3	4	3	4
Rated voltage Ui(V)		AC690V		AC690V		AC690V
Arc distance (mm)		≤50		≤50		≤50
Rated ultimate short-circuit breaking capitily Icu/Ics(KA)	AC690V	5/3		5/3		10/10
	AC400V	50/35		50/35		70/70
	AC230V	100/50		100/50		100/100
Operational performance (times)	ON	6000		2000		1000
	OFF	8500		7000		4000
Dimensions (mm)	a	90	120	105	140	140	185
	b	155		165		257
	c	68		68		103
Weight(kg)		1.1	1.4	1.5	1.9	5.5	7.5
Rated operation frequency		120		120		60

Protection Characteristic

The thermodynamic release of a circuit breaker provides the feature of inverse time-delay, while the magnetic release is the instantaneous operation as shown on table 2(distribution circuit breaker) and table 3 (motor protection circuit breaker).

Table 2

Rated current ofrelease (A)	Thermodynamic release( ambient temp )		Operationalcurrent ofmagneticrelease (A)
Rated current ofrelease (A)	1.05In(cold state) Inoperative time(h)	1.30In(heat state) Operative time(h)	Operationalcurrent ofmagneticrelease (A)
10≤In≤63	≥1	< 1	10In±20%
225≤In≤630	≥2	< 2	10In±20%
100≤In≤800	≥2	< 2	5In±20%