Sign In | Join Free | My
Search by Category
Wholesale Marketplace
Home > Logs >

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

Categories Molded Case Circuit Breaker
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: 4 pole
Certificate: CE
Purpose: for protection of power distribution
Trip unit: thermal magnetic
Trip current: fixed
  • Haven't found right suppliers
  • Our buyer assistants can help you find the most suitable, 100% reliable suppliers from China.
  • And this service is free of charge.
  • we have buyer assistants who speak English, French, Spanish......and we are ready to help you anytime!
  • Submit Buying Request
    • Product Details
    • Company Profile

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

    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.


    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.


    Rated current In(A)16,25,32,40,50, 63,75,100100,125,150,175,200,225,250250,300,350,400
    Number of poles343434
    Rated voltage Ui(V)AC690VAC690VAC690V
    Arc distance (mm)≤50≤50≤50
    Rated ultimate short-circuit breaking capitily Icu/Ics(KA)AC690V5/35/310/10
    Operational performance (times)ON600020001000
    Dimensions (mm)a90120105140140185
    Rated operation frequency12012060

    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)



    < 1




    < 2



    < 2


    Table 3

    Rated current ofrelease (A)

    Thermodynamic release( ambient temp )

    Operational current of magnetic release (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)





    4s< Tp ≤10s
    6s< Tp ≤20s




    Normal application environment:

    Altitude ≤ 2000m

    Ambient temperature -5~+40

    Tolerance of the influence of humid air.

    Tolerance of the influence of salt mist and oil mist.

    Maximal gradient is 22.5

    Kept in the media without explosive hazard.

    There is no conductive dust or gas which is able to erode metal or destroy insuation

    Kept in the place where no sleet will attack.

    About us:

    1. Certificates: CE, CB, Semko, SAA, TUV, UL, KEMA, ISO9001:2008

    2. We have 27 years of manufacturing and 17 years of exporting experience

    3. We have completely sales service system, ensures every detail is smooth

    4. We have new designed products each year by our R&D Department

    5. Perfect testing system ensures each product is qualified

    6. We have a good reputation in UK, Spain, Germany, Australian, UAE, Turkey, Brazil, Colombia,

    HK, Singapore, Malaysia and other areas

    Quality 350A Small Molded Case Circuit Breaker 4 Pole MCCB with Motor Distribution for sale
    Send your message to this supplier
    To: Zhejiang KRIPAL Electric Co., Ltd.
    Characters Remaining: (0/3000)
    Find Similar Products By Category:
    Inquiry Cart 0

    Home| Products| Suppliers| Quality Suppliers| Site Map |About Us |Contact Us |Help |关于我们 |联系我们

    Copyright © 2009 - 2019 All rights reserved.