What is GCS Type Low Voltage Draw-out Switchgear?

1. Product Overview

GCS type low voltage draw-out switchgear is a high-performance, modular, and type-tested low-voltage power distribution & motor control center (MCC/PCC) solution. Developed based on international advanced design concepts and optimized for global industrial power demand, this product fully complies with IEC 61439-1/2 international standards and EU CE certification requirements (LVD 2014/35/EU & EMC 2014/30/EU). It is widely applied for power distribution, motor centralized control, and reactive power compensation in industrial plants, power plants, petrochemical, metallurgy, high-rise buildings, and infrastructure projects worldwide.

Adopting a fully assembled 8MF cold-formed steel frame structure without welding, the GCS cabinet features high structural rigidity, strong seismic performance, and flexible expansion. The independent three-compartment isolation design effectively prevents fault diffusion, ensuring ultra-high operational safety and stability for global industrial power systems.

2. Core International Compliance & Certification

All GCS series switchgears are strictly manufactured and tested per global unified standards to meet market access requirements of Europe, Southeast Asia, Middle East, Africa, and other regions:

• International Standards: IEC 61439-1:2020, IEC 61439-2:2021 (replaces old EN 60439 series)

• EU CE Certification: Complies with Low Voltage Directive (LVD) and Electromagnetic Compatibility Directive (EMC), with complete technical files and DoC declaration

• National Standards: GB 7251.1, JB/T 9661

• Optional Global Certification: PVOC certification, CB certification, and other regional market access documents can be provided to support smooth customs clearance

3. Superior Structural Design & Safety Performance

3.1 Independent Three-Chamber Isolation System

The cabinet adopts a professional partition isolation design, dividing the interior into independent busbar chamber, functional unit chamber, and cable chamber. The fully metal-isolated structure avoids cross-interference and fault spread between circuits, greatly improving system operational safety. The rear horizontal busbar layout enhances short-circuit resistance, making it more adaptable to high-current and high-load industrial working conditions.

3.2 Reliable Draw-out Unit & Mechanical Interlock

Equipped with standardized modular drawer units with a 20mm installation modulus, covering 1/2, 1, 1.5, 2, 3 unit specifications to match currents from 32A to 400A. Each drawer has three working positions: Working Position, Test Position, and Extracted Position, with full mechanical interlock protection:

• The drawer cannot be pushed/pulled out when the circuit breaker is closed

• The main circuit cannot be closed when the drawer is not in the working position

• The test position supports live debugging and signal detection without connecting the main power

The silver-plated plug-in connectors ensure low contact resistance and stable power supply, with a mechanical service life of more than 1000 plug-in operations, reducing long-term maintenance costs.

3.3 Strict Environmental Adaptability

Designed for global complex working conditions, the product has excellent environmental adaptability:

• Working temperature: -5℃ ~ +40℃ (24h average temperature ≤35℃)

• Altitude: ≤2000m (customized derating solution for high altitude areas)

• Humidity resistance: Adapt to 50%RH (40℃) / 90%RH (20℃), optional anti-condensation heater for humid and coastal areas

• Protection grade: Standard IP30, optional IP40 for dust-proof and anti-corrosion upgrading

4. Complete Technical Parameters 

5. Product Classification & Application Scenarios

5.1 PCC Power Control Cabinet

Used for incoming power, busbar connection, and reactive power compensation of the whole plant. Equipped with high-current frame circuit breakers, featuring strong short-circuit resistance and stable power supply, suitable for main power distribution links of large industrial projects.

5.2 MCC Motor Control Cabinet

Each independent drawer corresponds to one motor control loop, supporting matching of circuit breakers, contactors, thermal relays, soft starters, and inverters. It realizes centralized control and intelligent management of fans, water pumps, compressors, and other equipment, ideal for automated industrial production lines.

6. Core Advantages

• High Safety & Stability: Three-compartment isolation + full mechanical interlock design, effectively avoiding electrical faults and ensuring long-term stable operation

• Fast Maintenance & Low Downtime: Draw-out structure supports hot swap replacement of faulty loops without powering off the whole cabinet, greatly reducing project downtime loss

• Strong Customization: Support personalized customization of cabinet size, protection grade, intelligent instruments, communication modules (Modbus-RTU), and anti-corrosion treatment

• Cost-Effective: Higher short-circuit resistance and more stable performance than traditional GGD/GCK cabinets, with lower procurement and maintenance costs than imported MNS cabinets

• Full Export Support: Provide CE test reports, type test certificates, factory inspection reports, and full English technical documents to meet global customs clearance and project acceptance standards

7. Intelligent Upgrade & After-sales Service

The product can be upgraded with intelligent functions such as real-time temperature monitoring, arc light protection, power parameter metering, and remote SCADA system access to meet the intelligent power management needs of modern factories. We provide one-stop export services including scheme design, factory pre-test, container packaging, overseas technical guidance, and after-sales maintenance, supporting global project turnkey delivery.

8.FAQs

Q1: Does the GCS switchgear meet international export standards? 

A: Complies with IEC 61439-1/2 and CE standards, provides full English certificates for customs clearance and acceptance.

Q2: What are the advantages of GCS compared with MNS and GGD?

A: Withdrawable design for easy maintenance vs GGD; higher cost performance and shorter lead time vs imported MNS.

Q3: Can it adapt to different global grid voltage and frequency? 

A: Supports 50/60Hz dual frequency and 380/400/660V, customizable for global grid standards.

Q4: Do you support customized design for overseas working conditions? 

A: Supports IP grade upgrade, anti-corrosion, high-altitude adaptation, heater, communication and English nameplate customization.

Q5: What is the core advantage of the withdrawable drawer structure? 

A: Safe mechanical interlock, single-loop replacement, low downtime, suitable for unattended overseas projects.

Q6: What is your export packaging and delivery standard? 

A: Standard moisture-proof & shock-proof export packaging, supports various shipment and full set of clearance documents.

Q7: Is the equipment suitable for large industrial projects? 

A: Max 6300A current and 80kA short-circuit resistance, fully applicable for large industrial and energy projects.