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300A 350A 400A MCCB Motor Short Circuit Protection Residential Circuit Breakers
300A 350A 400A MCCB Motor Short Circuit Protection Residential Circuit Breakers
Specifications
Brand Name :
KRIPAL
Model Number :
UKM30-400
Certification :
CE
Place of Origin :
China
MOQ :
100 pcs
Price :
negotiable
Payment Terms :
T/T, L/C
Supply Ability :
30000 pcs per month
Delivery Time :
20 days and depends on ordering quantity
Packaging Details :
Each unit packed in a individual box
Ampere range :
250A,300A,350A,400A
Poles available :
3 pole
Certificate :
CE
Purpose :
for protection of power distribution
Trip unit :
thermal magnetic
Warranty :
2 years
Description


300A 350A 400A MCCB Motor Short Circuit Protection Residential Circuit Breakers

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:

UKM30 series molded case cicuit breaker is suitable for circuit AC 50Hz/60Hz, rated voltage up to AC660V, Rated operating current up to 250A. It features normal structure reliable performance, high breaking capacity, used for power distribution and protecting the circuit and electrical equipment
against overload and short circuit. It complies with standard of IEC 60947-2.


Specifications:

TypeUKM30-400SUKM30-630SUKM30-800S
Rated current In(A)250,300,350,400400,500,630630,700,800
Number of poles343434
Rated voltage Ui(V)AC690VAC690V AC690V
Arc distance (mm)≤50≤50 ≤50
Rated ultimate short-circuit breaking capitily Icu/Ics(KA)AC690V10/10 10/10 15/15
AC400V70/7070/70 70/70
AC230V100/100100/100100/100
Operational performance (times)ON1000500500
OFF400025002500
Dimensions (mm)a140185210280210280
b257275275275
c103103103103
Weight(kg)5.57.510.914.211.415.7
Rated operation frequency 602020



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)

1.05In(cold state)
Inoperative time(h)

1.30In(heat state)
Operative time(h)

10≤In≤63

≥1

< 1

10In±20%

225≤In≤630

≥2

< 2

100≤In≤800

≥2

< 2

5In±20%



Table 3

Rated current ofrelease (A)

Thermodynamic release( ambient temp )

Operationalcurrent ofmagneticrelease (A)

1.0In(cold state)
Inoperative time(h)

1.20In(heat state)
Operative time (h)

1.50In(heat state)
Operative time (h)

7.2In(cold state)
Operative time(h)

10≤In≤225

≥2

<2

≤4min
≤8min

4s< Tp ≤10s
6s< Tp ≤20s

12In±20%

225≤In≤630


Benefits
1.Reduce energy and operations costs
2.Improve power quality, reliability and uptime
3.Optimize equipment use

Applications
1.Building: Hotels, hospitals, offices and retalis
2.Data center and Networks
3.Industry: Mining and minerals, automotive, food and beverage and chemical industry
4.Energy and infrastructures: Airports, oil and gas, water, electrical energy and marine


Circuit breaker power loss:

300A 350A 400A MCCB Motor Short Circuit Protection Residential Circuit Breakers













































Product tags

motor protection circuit breakers

,

abb motor protection circuit breaker

,

30 amp automotive breaker
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300A 350A 400A MCCB Motor Short Circuit Protection Residential Circuit Breakers

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Product Detail
Brand Name :
KRIPAL
Model Number :
UKM30-400
Certification :
CE
Place of Origin :
China
MOQ :
100 pcs
Price :
negotiable
Contact Supplier
300A 350A 400A MCCB Motor Short Circuit Protection Residential Circuit Breakers

Zhejiang KRIPAL Electric Co., Ltd.

Active Member
11 Years
zhejiang
Since 1987
Business Type :
Manufacturer, Exporter
Main Products :
Rotary Isolator Switch, AC Contactor, Industrial Plugs
Total Annual :
30000000-35000000
Employee Number :
500~700
Certification Level :
Active Member
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