YCM1-2P,3P,4P Molded Case Circuit Breaker (hyundai mccb breakers)
General
YCM1 series moulded case circuit breaker(herein after called circuit breaker) adopts
international advanced design and manufactural technology, it can be divided
into L-type (standard type), M-type (higher type)according to the rated ultimate
short circuit breaking capacity (Icu). With the features of small and compact, high
breaking capacity, short arcing-over distance, anti-vibration, the circuit breaker is
used popularly on land and marine products, they are applied for the power
distribution network of AC 50Hz,rated insulation voltage 800V (YCM1-63 to 500V),
rated working voltage 690V(YCM1-63 to 400V) and below, rated current up to
1250A, it can be used to distribute electric power and protect power equipment
against overload, short circuit, undervoltage etc, It also takes protective effect when
motors infrequently start and protecting against overload, short circuit and lacking
voltage. In the series, frame ranging from 63-630A three-pole product also comes
with a transparent cover, it is convenient for customer to observe the product
operation.
The circuit breaker can be installed vertically, or horizontally. This product complies
with standard of IEC60947-2.

Function and features
1.Temperature: -5ºC~+40ºC; the average value within 24h shall not exceed +35ºC. For the circuit breaker with thermo-magnetic
release, +40ºC is set to be the standard temperature for ratings. For temperature not between -5ºC~+40ºC, please contact us for
temperature compensation correction;
2.Altitude: not exceed 2000m (Please contact with us for reduction coefficient if altitude at the mounted site exceed 2000m)
3Pollution grade: Grade 3;
4.Air conditions:
At mounting site, relative humidity not exceed 50% at the max temperature of +40ºC, higher relative humidity is allowable under
lower temperature. For example, RH could be 90% at +20ºC, special measures should be taken to occurrence of dews.
Specifications
Specifications
Type | YCM1-63 | YCM1-125 | YCM1-250 | YCM1-400 | YCM1-630 | YCM1-800 | YCM1-1250 | |||||||
Poles | P | 3 | 3,4 | 2,3,4 | 2,3,4 | 3 | 4 | 3 | 4 | 3,4 | 3 | |||
Rated current In | A | 10, 16, 20, 25 32, 40, 50, 63 | 10, 16, 20, 25 32, 40, 50, 63 80, 100, 125 | 100, 125, 140 160, 180, 200 225, 250 | 225, 250, 315 350, 400 | 400, 500, 630 | 630, 700, 800 | 800, 1000 1250 | ||||||
Rated insulation voltage Ui | V | 500 | 800 | |||||||||||
Rated impulse withstand voltage Uimp | V | 6000 | 8000 | |||||||||||
Rated operation voltage Ue | V | AC400 | AC400/690 | |||||||||||
Breaking capacity class | L | M | L | M | L | M | L | M | L | M | M | M | ||
Limit short-circuit breaking capacity Icu | KA | 400V | 35 | 50 | 35 | 50 | 35 | 50 | 50 | 65 | 50 | 65 | 75 | 85 |
690V | 8 | 10 | 8 | 10 | 10 | 20 | 10 | 20 | 30 | 25 | ||||
Working short-circuit breaking capacity Ics | KA | 400V | 22 | 25 | 22 | 25 | 22 | 25 | 35 | 42 | 35 | 42 | 50 | 42.5 |
690V | 4 | 5 | 4 | 5 | 5 | 10 | 5 | 10 | 15 | 12.5 | ||||
Arcing distance | mm | 50 | 100 | |||||||||||
Operating frequency | Electrical life | 1500 | 1500 | 1000 | 1000 | 1000 | 500 | 500 | ||||||
mechanical life | 8500 | 8500 | 7000 | 4000 | 4000 | 2500 | 2500 |




Company Introduction

CNC Electric Group Co., Ltd. is a non-regional enterprise group approved and registered by the National Industrial and Commercial Bureau. Under drastic market competition, we are always trying to develop the national industry and depend on technology and technique. Thus, our company has developed into one of the largest trans-regional, conglomerate and trans-national enterprises on scale and developing potentiality.
Certificates

Factory Lines

Exhibition


CNC Electric Group Co., Ltd. is a non-regional enterprise group approved and registered by the National Industrial and Commercial Bureau. Under drastic market competition, we are always trying to develop the national industry and depend on technology and technique. Thus, our company has developed into one of the largest trans-regional, conglomerate and trans-national enterprises on scale and developing potentiality.
Certificates

Factory Lines

Exhibition

WHY US?
1. We Are Supplier of Three Gorges Project,China National Petroleum,Sinopec Group;
2. China Famous Export Enterprise, Our Products Sale in Over 100 Countries;
3. Our Laboratory is China Key Industrial Electrical Laboratory;
4. We have completely sales service system, ensure every detail is going smooth.
5. We have new designed products each year by our R&D Dpartment.
6. Perfect testing system ensure each product is qualified.
7. Want know more of us? Waiting for your inquiry.
