search
Search

Search for equipment models, voltage specifications, or project references.


Home > GGD AC Low Voltage Switchgear Panel (400V / 4000A)

GGD AC Low Voltage Switchgear Panel (400V / 4000A)
GGD AC Low Voltage Switchgear Panel (400V / 4000A)

GGD AC Low Voltage Switchgear Panel (400V / 4000A)

Product Description:
STELLAR fixed-type low voltage switchgear panels are engineered to deliver reliable power distribution, conversion, and control for industrial plants, substations, and mining enterprises. Designed for AC 50/60Hz electrical networks with a rated operating voltage of 400V and a main busbar capacity up to 4000A, this robust electrical switchgear cabinet provides optimal safety and operational continuity.
As a premier choice from leading low voltage switchgear manufacturers, this system is constructed using a high-rigidity 8MF cold-formed steel framework. It features excellent short-circuit breaking capacity, superior dynamic thermal stability, and a highly adaptable modular configuration that allows for effortless tailored engineering to meet global infrastructure demands.
Technical & Environmental Capabilities:
• Maximum Main Busbar Rated Current: 4000A
• Rated Operating Voltage: 380V / 400V (AC 50/60Hz)
• Short-Time Withstand Current (Icw/1s): Up to 50 kA
• Peak Withstand Current (Ipk): Up to 105 kA
• Service Conditions: Ambient temperatures from -5°C to +40°C; installation altitudes up to 2000m.
• Modular Layout: Precision-punched frame with E=20mm and E=100mm mounting holes.
Ordering & Customization:
To receive a detailed configuration proposal, please submit your single-line diagram (SLD), required incoming/outgoing circuit current levels, enclosure dimension constraints, and destination utility standards. Our experienced engineering team will output localized general arrangement layouts for your approval.

Technial Parameters

TECHNICAL SPECIFICATION (LOW VOLTAGE SWITCHGEAR CABINET)UNITSCONFIG ICONFIG IICONFIG III
Rated operating voltage (Ue)V380 / 400380 / 400380 / 400
Rated operating current (Ie)Main Option AA10001500 / 16003150
Main Option BA600 / 63010002500
Main Option CA4006002000
Rated short-circuit breaking currentkA153050
Rated short-time withstand current (Icw/1s)kA153050
Rated peak withstand current (Ipk)kA3063105
Standard Dimensions (H x W x D)mm2200 x (600-1200) x (600-1000)

Product Details

High-Rigidity 8MF Cold-Formed Steel Framework

The universal framework of this low voltage switchgear cabinet is engineered using specialized 8MF cold-formed steel sections, reinforced via precise localized welding. This robust structural choice provides exceptional mechanical strength and torsional rigidity, ensuring the switchgear panel retains its structural integrity under heavy fault currents and transport vibrations. The entire frame is equipped with pre-punched modular mounting holes aligned to E=20mm and E=100mm pitch grids, maximizing component integration flexibility for customized international project demands.

Optimized Natural Convection Ventilation and Heat Dissipation

To guarantee peak operational efficiency and eliminate localized hot spots within high-amperage internal circuits, the low voltage switchgear design incorporates optimized ventilation channels. Precision-punched louvers are strategically positioned on both the upper and lower sections of the cabinet enclosure. As internal components generate heat during duty cycles, cooler air is drawn in from the bottom vents, establishing a highly effective natural thermal convection loop that exits via the top slots. This passive cooling system significantly increases the lifespan of inner instrumentation and breakers.

Comprehensive Grounding Circuit for Operator Safety

Operational safety is embedded into every aspect of this low voltage electrical switchgear assembly. A continuous, heavy-duty grounding protection network is established throughout the entire cabinet frame. Critical structural points, including instrument doors, removable side panels, and mounting plates, are interconnected to the main grounding busbar via high-grade copper braided wires and specialized knurled grounding screws. This layout guarantees permanent electrical continuity, effectively mitigating hazardous fault potentials and creating an incredibly secure workspace for field engineers.

Strict Adherence to Altitudinal and Thermal Service Conditions

Engineered for versatile industrial deployment, our low voltage switchgear panel is qualified to perform seamlessly under demanding site parameters. The cabinet safely maintains its operational insulation limits up to an installation altitude of 2000m without requiring clearance derating. It thrives in ambient temperatures ranging from a lower bound of -5°C up to peak limits of +40°C (with a 24-hour average limit of +35°C). Relative humidity limits are strictly calibrated to withstand up to 90% at lower ambient conditions, ensuring complete moisture and condensation resilience in diverse tropical or coastal climates.

FAQs

What international standard does this low voltage switchgear cabinet comply with?

Our power distribution cabinets are fully aligned with the stringent low voltage switchgear specification and layout baselines governed by international standards like IEC 61439. This ensures maximum short-circuit withstand capabilities and complete protection coordination across global grid infrastructures.

Why is the 8MF cold-formed steel framework preferred for this switchgear panel?

The 8MF cold-formed steel framing offers superior structural loading thresholds and dynamic thermal stability compared to conventional thin-sheet metal structures. It effectively absorbs magnetic forces during unexpected short circuits, ensuring the safety of internal components and field personnel.

What environmental and altitudinal limitations must be observed during installation?

This panel system is engineered for safe deployment up to altitudes of 2000m. It maintains high structural and dielectric efficiency within ambient temperature bounds of -5°C to +40°C, and is rated to handle relative humidity levels up to 90% at lower operating temperatures.

How does the custom ordering process work for an overseas project?

As a dedicated switchgear manufacturer, we require your system's single-line diagram (SLD), preferred breaker ratings, current requirements, and structural space limits. Our engineering team will deliver a comprehensive panel layout layout and quotation optimized for your exact local market standard.