GCL, GCK low voltage withdrawable switchgear
GCL, GCK low voltage withdrawable switchgear

Product overview

GCL, GCK(BWL1) system low-voltage withdrawable switchgear is suitable for all the generation, distribution and use of electricity occasions, such as: public utilities, power systems, petrochemical, wastewater treatment, industrial and mining enterprises, underground facilities, ships, oil drilling platforms, civil buildings, etc.

System features

GCL, GCK(BWL1) low pressure withdrawable switchgear system, it has proved its superiority and expansibility, meets the demand of technological development after years of use and continuous updating and improvement in the market. GCL, GCK(BWL1) system adopts the flexible assemble frame structure, different standard components can be installed in the cabinet, to meet a variety of operating requirements.
The insulation materials used in GCL and GCK(BWL1) systems have the characteristics of flame retardance and self-extinguishing. Compared with traditional products, the new generation of GCL system has more advantages:
Compact structure, save cabinet volume
The whole series of standardized distribution circuit layout is reasonable.
All standard sheet metal parts are selected, for convenient choose of designers.
The same cabinet body can be combined into different functional units freely, like fixed type and withdrawable type.
Cabinet can meet the requirements of anti - earthquake, anti - shock and anti – impact.
Strong system expansibility
High continuity and reliability of equipment operation
Cabinet body achieves maintenance-free to the greatest extent
Personal safety of operators is guaranteed

Product feature

Technical standard
 GCL, GCK(BWL1) system is a low voltage switchgear passed type test (TTA in short), it meets: IEC60439-1, GB7251.1-1997 and JB/T9661-1999 standards. The installation and connection of the system are performed according to standard IEC364.
Working conditions
GCL low-voltage withdrawable switchgear is suitable for indoor installation of electrical equipment, its protection class is IP32.
Ambient temperature the maximum short-time temperature is 40℃
24-hour maximum mean temperature +35℃
The lowest temperature is -5 ℃
Ambient conditions
The normal working climate environment is regulated by IEC60439-1, GB7251.1 and JB/T9661.  When the maximum temperature is +40℃, its relative humidity is less than or equal to 50%.
The conditions of indoor installation site of switchgear should meet the requirements of corresponding standards.  In the case of condensation, measures such as ventilation or heating should be taken inside the switchgear.
If the switchgear is installed at an altitude higher than 2000 meters, the equipment should reduce operating capacity accordingly.
Technical specifications
Standard: Passed type test, withdrawable switchgear (TTA), GB7251.1, IEC60439-1.
Test Report: China National Electronic-controlled Distribution Equipment Quality Supervision Center (type test) China Tianjin Electric Drive Research Institute (Short-circuit strength test).
100kA short circuit withstand current test
100kA incoming line unit short-circuit strength breaking test

Main technical parameters

Rated voltageRated current
Rated insulation voltage Ui 690V ACMain busbar rated current Ie to 6300A
Rated operational voltage Ue 415V ACRated peak withstand current Ipk to 220kA
Rated impulse withstand voltage Uimp 12kVRated short-time withstand current Icw to 100kA
Overvoltage category IIIRated current of power distribution busbar Ie to 1600A
Pollution degree 3Rated peak withstand current Ipk to 176kA
Rated frequency 50/60HzRated short-time withstand current Icw to 86kA


Dimension height 2200mm; Width 600,800,1000,1200 mm;    Depth 800,1000 mm Surface protection     cabinet frame and internal partition, door    galvanized steel plate
 Shell         electrostatic spraying
 Protection grade       GB4208、IEC529 IP32
 Isolation mode       IEC60439-1 Form3