Fine workmanship ycm7 3P,4P Moulded Case Circuit Breaker MCCB
General
Circuit Breaker Component
Inner Accessories
General
YCM7, YCM7RT, YCM7T/A, YCM7RE series circuit breaker is a new generation of
breaker.
This breaker is applied for the distribution network of AC 50Hz, rated insulation
voltage 800V, rated working current up to 800A, which is for electric energy
distribution, circuit protection, protection power supply facility from destroying by
the fault of overloading, short circuit and undervoltage, meanwhile it is also used for
protection from unfrequent starting, over loading, short circuit and undervoltage of
the motor.
This breaker has such characteristics as high short circuit interrupting capacity, short
arcing and etc., which is a ideal product for users. This breaker can be installed
vertically, and also horizontally
This breaker comply with standard IEC60947-2.
Product Features
1.Miniaturization design
Product volume miniaturization can meet the customer's personality needs of the
product installation size.
2.Size uniform
The same shell level, different breaking capacity (S, M), different functions (air,
leakage) product installation size is completely consistent.
3.The function of the reasonable parameter setting
Circuit breaker can realize long-time delay overload inverse time, short circuit
instantaneous action protection functions such as parameter setting, users can set
their own protective properties required, the distribution network is used in the
circuit breaker on the lower level with more reasonable
Suitable Working Encironment and Mstallation Condition
1.Altitude less than 2000m
2.Ambient medium temperature is from -5ºC to +40ºC (+45ºC for shipping product)
3.Humidity resistance
4.Bacteria resistance
5.Nuelear radiation resistance
6.Max lean degree is 22.5 degree.
7.Can operate normally when it comes to vibrataion of ship.
8.Can operate normally when it comes to earthquake(4g).
9.The medium should be no risk of blasting and can't erode the metal and damage
insulating gas as well as conductive dust.
10.Work in the places where is no rain and snow.
Circuit Breaker Component
1. Auxiliary contact 6. Front connection plate
2. Alarm contact 7. Motor driven operation mechanism
3. Shunt release 8. Extended manual operation handle
4. Undervoltage release 9. Plug in rear connection
5. Interphase barrier 10. Rear connection plate
Selection Guide
| YCM7 | - | 125 | M | P | / 4 | 300 | - | 125A | 2 | A | Q1 | D1 | Q | 2 |
| Type | Frame Inm | Breaking capacity ICU/ICS(kA) | Operation | Poles |
| YCM7 | 125 | M | P | 4 |
| MCCB | 125, 160, 250, 630, 800 Remark: 125 Frame upgrade from 63 160 Frame upgrade from 125 250 Frame upgrade from 225 630 Frame upgrade from 400 | S M 125 15/8 160 25/18 250 25/18 400 35/25 50/35 630 50/35 800 50/35 | P: Motor-driven Z: Rotory handle W: Direct | 3: 3P 4: 4P |
| Tripping mode and inner accessory | Rated current(A) | Application | Option for 4P MCCB |
| 300 | 125A | 2 | A |
| First figure means tripping unit way 2: Only with magnetic release 3: Thermal release+,magnetic release body Remark: The last two figures means accessory code (see accessories list) | 125 ; 63, 80, 100, 125 160 ; 63, 80, 100, 125, 140, 160 250 ; 100, 125, 140, 160, 180,200, 225, 250 400 ; 250, 315, 350, 400 630 ; 500, 630 800 ; 500, 630, 700, 800 | 1. Power distribution 2. Motor-protection | A: N pole without protection, N pole is always ON B: N pole without protection, N pole makes with the other three poles |
| Accessory voltage | Motor-driven operation voltage | Connection | Connection plate |
| Q1 | D1 | Q | 2 |
| UVT Shunt Auxiliary Q1: AC220V F1: AC220V J1: AC125V Q2: AC240V F2: AC380V J2: AC250V Q3: AC380V F3: DC110V J3: DC125 Q4: AC415V F4: DC24V J4: DC24V | DC1 DC3 D1: AC220V D5: AC220V D2: AC230V D6: AC110V D3: AC380V D7: DC220V D4: AC400V D8: DC110V D9: AC110~240V D10: DC100~220V | Q: Front H: Rear C: Plug-in | 1: W/O 2: W |
Inner Accessories
Technical Data
| Type | YCM7-125S | YCM7-160S | YCM7-250S | |
| Frame(A) | 125 | 160 | 250 | |
| Number of poles | 3,4 | 3,4 | 3,4 | |
| Products |  |  |  | |
| Rated current(A) | 63, 80, 100, 125 | 63, 80, 100, 125, 140, 160 | 100, 125, 140, 160, 180, 200, 225, 250 | |
| Rated voltage Ue(V) | AC400V/AC690V | AC400V/AC690V | AC400V/AC690V | |
| Rated insulation voltage Ui(V) | AC800V | AC800V | AC800V | |
| Short-circuit breaking capacity Icu/1cs(kA) | AC400V | 15∖8 | 35/25 | 35/25 |
| Operation life (cycle) | ON | 1000 | 1000 | 1000 |
| OFF | 7000 | 7000 | 7000 | |
| Motor-driven operation | ▪ | ▪ | ▪ | |
| External rotary handle | ▪ | ▪ | ▪ | |
| Automatic tripping device | Thermo-magnetic | Thermo-magnetic | Thermo-magnetic | |
| Type | YCM7-400S/M | YCM7-630M | YCM7-800M | |
| Frame(A) | 400 | 630 | 800 | |
| Number of poles | 3,4 | 3,4 | 3,4 | |
| Products |  |  | ||
| Rated voltage Ue(V) | 250, 315, 350, 400 | 500, 630 | 500, 630, 700, 800 | |
| Rate current(A) | AC400V/AC690V | AC400V/AC690V | AC400V/AC690V | |
| Rated insulation voltage Ui(V) | AC800V | AC800V | AC800V | |
| Short-circuit breaking capacity Icu/1cs(kA) | AC400V | 35/25 50/35 | 50/35 | 50/35 |
| Operation life (cycle) | ON | 1000 | 1000 | 1000 |
| OFF | 4000 | 4000 | 4000 | |
| Motor-driven operation | ▪ | ▪ | ▪ | |
| External rotary handle | ▪ | ▪ | ▪ | |
| Automatic tripping device | Thermo-magnetic | Thermo-magnetic | Thermo-magnetic | |
| ▪Means accessory as option | ||||
Characteristic Featur
1.Inverse time breaking action property of the over current release of the breaker (for power distribution) at the status that all poles
and electrified simultaneously under abrent temp 40ºC.
| Test current | Current time | Conventional time | Initial status | |
| In≤63 | 63 | |||
| Conventional non-trip current | 1.05 | ≥1h | ≥2h | Cold status |
| Conventional trip current | 1.3 | <1h | <2h | Hot status |
2.When ambient temperature is ±40ºC for electrmotor protection breaker, power on for every pole, inverse time limit characteristic
of no temperature compensation is in the following sheet.
| Test current | Current time | Conventional time | Initial status | |
| In≤800 | ||||
| Conventional non-trip current | 1 | ≥1h | ≥2h | Cold status |
| Conventional trip current | 1.2 | <1h | <2h | Hot status |
3.Action property of the short-circuit release of the breaker
`Instant trip (for power distribution) I=10In
`Instant trip (for motor protection) I=12In
`Current setting accuracy ±20%
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
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.
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.