HJ-LVS-C Series Compact Withdrawable Switchgear

Up to 4000A / 80kA / Compact Motor Control

The HJ-LVS-C Series Compact Withdrawable Switchgear is a highly efficient and economical low-voltage power distribution and Motor Control Center (MCC). Designed for optimized footprint and operational safety, it utilizes a highly dense drawer configuration to maximize the number of control circuits per cabinet, making it an ideal solution for large-scale industrial motor management.

Ideal for Space-Optimized Industrial Scenarios:

✓ Power Generation Plants & Substations
✓ Petroleum, Chemical & Heavy Metallurgy
✓ Textile, Manufacturing & Light Industries
✓ High-Rise Commercial Buildings & Public Facilities

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Core Advantages

Technical Specs

1. Compact & High-Density Architecture

Maximize your electrical room's footprint. The HJ-LVS-C features a highly optimized internal layout. By utilizing compact 1/2 functional drawer units, a single vertical section can accommodate up to 22 independent motor control circuits, drastically reducing the overall space and CAPEX required for large installations.

2. Robust Framework & Thermal Capacity

Constructed with specialized folded steel profiles (KS/8MF), the framework delivers exceptional mechanical strength. The optimized busbar arrangement significantly enhances dynamic and thermal stability, comfortably handling main busbar currents up to 4000A and short-time withstand currents up to 80kA.

3. Secure & Flexible Withdrawable Mechanism

Maintenance is safe and intuitive. Each functional drawer is equipped with a highly reliable mechanical interlocking system, featuring distinct 'Connected', 'Test', and 'Isolated' positions. This ensures that modules can only be safely withdrawn or inserted under the correct electrical conditions, preventing operator error.

4. Compartmentalized Safety Design

To ensure maximum operator protection and prevent fault propagation, the cabinet is strictly divided into three isolated zones: the Busbar Compartment at the rear, the Functional Unit (Drawer) Compartment at the front left, and the Cable Compartment at the front right. Each zone is physically separated by flame-retardant steel plates.

Global Factory Acceptance & Turnkey Support

Every HJ-LVS-C unit undergoes rigorous routine testing aligned with strict IEC 61439 standards before dispatch. We proudly support Remote Video FAT (Factory Acceptance Test) for our global EPC clients, ensuring total transparency.

To support local manufacturing and joint ventures, this series is fully available in CBU (Completely Built Unit), SKD (Semi-Knocked Down), or CKD (Completely Knocked Down) delivery formats.

Technical Specifications

(Note: Parameters cover standard configurations. Specific ratings will be tailored to your project's single-line diagram.)

Electrical & System Parameters
Compliance Standards	IEC 61439-1 / IEC 61439-2
Rated Operational Voltage (Ue)	400V / 690V AC
Rated Insulation Voltage (Ui)	690V / 1000V AC
Rated Main Busbar Current (Horizontal)	Up to 4000A
Withstand & Protection Ratings
Rated Vertical Busbar Current (MCC)	1000A
Short-Time Withstand Current (Icw)	Up to 80kA (1s) for Main Busbar / 50kA (1s) for Vertical Busbar
Peak Withstand Current (Ipk)	Up to 176kA (Main) / 105kA (Vertical)
Drawer Module Sizes	1/2, 1, 1.5, 2, 3 Units (Up to 22 circuits per cabinet)
Enclosure Protection Degree	IP30 / IP40 (Custom IP54 available upon request)

Normal Operating Environment

Ambient Temperature: -5°C to +40°C (Average over 24h ≤ +35°C).
Altitude: Standard ≤ 2000m.
Relative Humidity: ≤ 50% at +40°C (Higher humidity allowable at lower temperatures, e.g., 90% at +20°C).
Installation Requirements: Indoor environment without severe dust, chemical corrosion, or intense vibration.