LV Switchgear

GDF Compartment-Type Low-Voltage Switchgear

GDF low-voltage switchgear houses power distribution and motor-control circuits in fixed, partitioned compartments. The cabinet structure separates functional sections, giving industrial power centres and motor control centres an organised arrangement for circuit operation and inspection.

The series serves AC 380/660 V systems, with rated system current up to 4,000 A, horizontal busbar ratings up to 5,000 A and IP4X enclosure protection. Compartment allocation, feeder sizes and cable entry are configured around the circuit schedule and installation layout, with internal segregation and access requirements defined for each project.

Technical Specifications

Rated Operating Voltage	AC 380 / 660 V
Rated Insulation Voltage	660 V
Rated Frequency	50–60 Hz
Rated System Current	up to 4000 A
Horizontal Busbar Current	up to 5000 A
Vertical / Branch Busbar Current	630 / 1250 / 1600 A (vertical busbar)
Short-Time Withstand Current	100 kA (horizontal and vertical busbars)
Peak Withstand Current	175 kA (horizontal); 110 kA (vertical)
Enclosure IP Rating	IP4X
Standards	GB 7251

Key Features

Compartment (partitioned) construction
Fixed functional units
Power distribution & motor control
Economical, easy to maintain

Typical Applications

Factory and mining-site electrical rooms
Power stations and substations
High-rise buildings

Installation & Aftercare

Prepare the site, plan routine checks and keep service records.

What needs to be ready before installation?

Provide a level indoor foundation and access to fixed devices, cable terminals and the largest replaceable component.
Size the room and cable routes from the complete lineup; horizontal and vertical distribution paths have distinct current duties.
Keep cooling openings clear and protect the room from conductive dust, condensation and water entering through cable trenches.

What should operators check during routine rounds?

Monitor circuit loading, trip history and unusual heating or smell without opening energised compartments.

What is covered during planned maintenance?

During planned isolation, qualified personnel inspect fixed-device connections, busbar supports and insulation for looseness, cracking or heat damage.
Remove accumulated dust and check door mechanisms; plan device replacement around the actual section isolation boundary.

Customization Options

Define the electrical configuration and the details needed for your site.

Circuit lineup: Incoming and outgoing circuits, bus-section arrangement and spare distribution ways.
Busbars & fault duty: Operating voltage, busbar current, neutral arrangement and verified short-circuit duty.
Protection & controls: Breaker ratings and trip functions, motor-control circuits and auxiliary supply voltage.
Cabinet arrangement: Front or rear service access, cable-entry direction, section dimensions and enclosure protection.
Metering & indication: Meter quantities, current-transformer ratios, status indications and communication requirements.

Project-specific options and accessories are confirmed in the quotation and approved drawings.