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Product overview
GCK low-voltage withdrawable switchgear is widely used in power plants, metallurgical steel rolling, petrochemical industry, light textile industry, ports and terminals, building hotels and other places as AC three-phase four-wire or five-wire system, voltage 380V, 660V, frequency 50Hz, rated It is used for power distribution and centralized control of motors in power supply systems with currents of 5000A and below.
This product complies with the requirements of GB7251.12-2013 "Low-voltage complete switchgear and control equipment", IEC61439-2:2011 "Low-voltage complete switchgear and control equipment" and other standards.
Model and features
Normal service conditionsNormal service conditions
● The altitude does not exceed 2500m (with special technology, it can reach 4000m);
● The relative temperature does not exceed 50% at the maximum temperature of +40 °C , and a higher relative temperature is allowed at lower temperatures, such as 90% at +20°C;
● The air is clean, free of corrosive and explosive gases, and no conductive dust that can damage insulation;● The switch cabinet is suitable for transportation and storage at the following temperatures: -25°C to +55 °C , not exceeding +70°C in a short period of time (not more than 24 hours);
Note: When the above normal usage conditions are exceeded, the user can negotiate with the manufacturer to determine.
Technical parameter
| 名称Description | 单位Unit | 参数Specifications |
|
额定绝缘电压 Rated insulation voltage |
V | 660/1000 |
|
额定工作电压 Rated operating voltage |
v | 4400/660 |
|
辅助电路额定工作电压 Rated operating voltage of auxiliary circuit |
V | AC380、220, DCllO、220 |
|
母线额定电流 Rated busbar current |
A |
1000、1250、1600、2000、2500、 3200、4000、5000 |
|
母线额定短时耐受电流（有效值）1秒 Rated short time withstand current of busbar(1s rms) |
kA | 50、80 |
|
母线额定峰值耐受电流 Rated peak withstand current of busbar |
kA/0.1s | 105、140、176 |
|
分支母线额定电流 Rated branch busbar current |
A | 630、1000、1250、1600 |
|
分支母线额定短时耐受电流（有效值）1秒 Rated short time withstand current of Branch busbar (1s rms) |
kA | 30kA、50kA |
|
分支母线额定峰值耐受电流 Rated peak withstand current of branch bus |
kA/0.1s | 63kA、105kA/0.1s |
|
外壳防护等级 Degree of protection |
IP30、IP40 | |
|
母线设置 Bus Setup |
三相四线制、三相五线制 Three phase four-wire, Three phase five-wire |
|
|
操作方式 Operation |
就地、远方、自动 Local, Distance, Automatic |
Overall dimension
Structure and Dimensions
The GCK (L) series switch cabinet is installed vertically, not against the wall. Behind it is the outlet cable trench of the cabinet. To facilitate maintenance, the distance from the back to the wall is usually 800~1200mm: see the figure below for the front distance installation.
