Zhejiang KRIPAL Electric Co., Ltd.
Zhejiang KRIPAL Electric Co., Ltd 30 years experience in manufacturing ac contactor, rotary isolator switch, industrial plug socket, molded case circuit breaker and etc
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Ics=Icu 160A 4 P 50KA Moulded Case Circuit Breaker KEMA certified
KRIPAL has the Utility Model Patent for the structure of double making & double breaking!
The UKM32 series MCCB Thermal magnetic Molded Case circuit Breakers, which are the type found in most distribution boards, incorporate both techniques with the electromagnet responding instantaneously to large surges in current (short circuits) and the bimetallic strip responding to less extreme but longer-term over-current conditions. The thermal portion of the circuit breaker provides an "inverse time" response feature, which trips the circuit breaker sooner for larger overcurrents but allows smaller overloads to persist for a longer time. On very large over-currents during a short-circuit, the magnetic element trips the circuit breaker with no intentional additional delay.
Description:
1. Thermal magnetic adjustable
2. Double making & double breaking design
3. Contacts: 85% AgCdo
4. Metal parts: Cooper
5. Plastic Parts: brand-new materials
6. High breaking capacity.
7. Bearing Rotating shaft
8. The max breaking capacity of each model is up to 150 kA
9. U-type fixed contact design
10. Don't contain any noxious substances and its manufacturing and processing are performed in
accordance with the requirements of ISO14001.
Specifications:
|
MCCBs for power distribution |
UKM32-160 |
UKM32-250 |
UKM32-630 |
|
|
Frame size |
160 |
250 |
630 |
|
|
Rated current, In |
16, 20, 25, 32, 40, 50, 63, 80, 100, 125, 160 |
40, 50, 63, 80, 100, 125, 160, 200, 250 |
300, 400, 500, 630 |
|
|
Poles |
3, 4, |
3, 4, |
3 |
|
|
Rated operational Voltage, Ue |
AC (V) |
690 |
690 |
690 |
|
DC (V) |
500 |
500 |
500 |
|
|
Rated impulse withstand voltage, Uimp |
8 |
8 |
8 |
|
|
Rated insulation voltage. Uimp |
750 |
750 |
750 |
|
|
Rated ultimate short circuit breakering capacity, Icu |
N |
N |
N |
|
|
AC 50/60HZ |
220/240V (KA) |
85 |
100 |
100 |
|
380/415V (KA) |
50 |
85 |
65 |
|
|
440/460V (KA) |
50 |
70 |
65 |
|
|
480/500V (KA) |
30 |
50 |
42 |
|
|
660/690V (KA) |
5 |
8 |
10 |
|
|
DC |
250V (KA) |
42 |
65 |
50 |
|
2 poles in series |
500V (KA) |
42 |
65 |
50 |
|
Rated service breaking capacity, Ics(%Icu) |
100% |
100% |
100% |
|
Current-limiting Capacity:
Current limiting means the limiting increase of the short circuit current in a circuit. In a circuit protected
by the UKM32 product series, both the peak value and energy l2t of the short circuit current generated
are far less than expected.
A. U -Type fixed contact design
The pre-breaking technique may be realised by means of a unique U-Type fixed contact.
The pre-breaking technique refers to that of the electrodynamic force generated throuth the U-Type
fixed contact and that wnich occurs on moving contact system. The higher the short circuit current,
the bigger the repulsive electrodynamic forces they generate simultaneously. Prior to releasing,
the electrodynamic repulsive forces may separate the moving contact from the fixed contact, and the
equivalent resistance between these two contacts is increased by streching the electrical arc.
B. Double making & double breaking design
The current-limiting function of the pre-breaking technique is enhanced because of increase in instantaneous arc resistance and arc voltage and a fast drop in the current increase rate.
Reduces the damage and loss of equipment and the power lines caused by a short circuit current,
improves the safety, and cuts down on the cost of a secondary protection device.
FAQ:
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