Product Overview

Our Low-Voltage Withdrawable Switchgear is the definitive solution for industries where downtime is not an option. Designed for AC 50/60Hz power systems with rated voltages up to 690V, this complete set of power distribution equipment combines high-capacity energy management with the flexibility of modular "draw-out" technology.

The core advantage of this system is its independent functional units. Each circuit breaker or motor starter is housed in a separate, withdrawable drawer. This allows operators to remove, inspect, or replace a unit while the main busbar remains energized, ensuring that critical processes in power plants, data centers, and refineries continue to run without interruption.

Key Technical Advantages

• Fully Withdrawable "Hot-Swap" Drawers: Each unit features distinct Connected, Test, and Disconnected positions. Drawers can be swapped in under 5 minutes, drastically reducing the Mean Time to Repair (MTTR).

• Advanced Mechanical Interlocking: A sophisticated "Five-Prevention" safety logic ensures that drawers cannot be moved while the switch is ON, and the door cannot be opened while the unit is energized, virtually eliminating operator error.

• High Short-Circuit Withstand (Icw): Engineered with high-purity T2 copper busbars and reinforced frames to handle fault currents up to 80kA for 1 second, providing a massive safety margin for heavy industrial grids.

• Effective Fault Compartmentalization: The cabinet is strictly divided into a Busbar Room, Functional Unit Room, Cable Room, and Control Room. This "Form 4" separation prevents an arc fault in one area from affecting the rest of the switchboard.

• Corrosion-Resistant 8MF Frame: The chassis utilizes CNC-processed, C-type profiles with a 20mm/25mm modular hole system, offering superior structural precision and resistance to harsh industrial environments.

Technical Specifications

Primary Application Scenarios

1. Continuous Process Industries: Ideal for petrochemical plants, steel mills, and paper mills where a power stop results in massive production losses.

2. Critical Infrastructure: Main distribution for data centers, international airports, and Tier-1 hospitals requiring 100% service availability.

3. Power Generation: Auxiliary power centers for thermal, hydro, and solar power plants.

4. Marine & Offshore: Compact, vibration-resistant withdrawable units for drilling rigs and large vessel power management.

Why Choose Our Draw-out Switchgear Assemblies?

• Silver-Plated Primary Contacts: The primary plug-in "claws" of each drawer are silver-plated to ensure minimum contact resistance and zero oxidation over decades of operation.

• Intelligent Grid Monitoring: Compatible with smart Air Circuit Breakers (ACBs) and multifunctional power meters, providing real-time data via Modbus-RTU, Profibus, or Ethernet protocols.

• Space-Efficient Design: High power density allows for more circuits per vertical section compared to fixed-type panels, saving valuable floor space in electrical rooms.

• Custom Engineering: We provide bespoke busbar routing and cable entry configurations (top or bottom) to match your specific facility Single Line Diagram (SLD).

FAQ

Q: What is the main benefit of "Withdrawable" over "Fixed" switchgear?

A: Maintenance and Up-time. In a fixed system, the whole panel must be de-energized to fix one circuit. In a withdrawable system, you pull out only the faulted drawer; the rest of the factory stays powered.

Q: Can I mix different drawer sizes in one cabinet?

A: Yes. Our modular system allows for a combination of 1/2 unit, 1 unit, 2 units, and 3 unit drawers in a single vertical column, accommodating everything from small motor starters to large feeders.

Q: Are the units tested for internal arc flashes?

A: Yes, our designs are type-tested according to IEC 61439 standards to ensure that internal arcs are contained and gases are vented safely away from the operator.

Product Description

GCK/GCS/MNS Low voltage extraction switchgear

GCK/GCS/MNS Low-voltage extraction switchgear complete set of switchgear is suitable for AC 50Hz, rated working voltage 380V low-voltage distribution system. It contains the functions of power center (PC) and motor control center (MCC), the technical parameters are up to the national standards, with beautiful appearance, high electrical performance, high protection level, safe and reliable,easy maintenance and other characteristics, is the metallurgy, petroleum, chemical, electric power, machinery, light textile and other industries low-voltage power supply system distribution device.

This product conforms to IEC-439, GB7251.1 standard.

Operating environment conditions

The altitude does not exceed 2,000 meters above sea level.

1. the ambient air temperature is not higher than +40℃, not lower than -5℃, and the average temperature within 24 hours is not higher than +35℃.

2. atmospheric conditions: the air is clean, the relative humidity at the temperature of +40 DEG C is not more than 50%, the temperature is low to allow a higher relative humidity, such as +20 DEG C is 90%.

3. no fire, explosion danger, serious pollution, chemical corrosion and violent vibration of the place.

4. Tilt with vertical plane not more than 5°.

5. the control center is suitable for the following temperature transport and storage process: -25℃ ~+55℃, in a short time (not more than 24h) not more than +70℃.

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