Distribution box model thickness specifications and parameters

Distribution boxes come in various models and specifications, with thicknesses ranging from 1.0 mm for metal boxes to flame-resistant ABS for plastic boxes, designed for low-voltage AC power distribution in industrial, commercial, and residential applications.

Models and Types

1. Low-Voltage Fixed Switchgear

• GGD series: Used in substations and power plants, AC 50Hz, rated voltage 380V, high breaking capacity, stable performance.
• GDH series: Similar to GGD, with manufacturer-specific variations.
• PGL series: Low-voltage fixed switchgear for stable power supply in various applications . 2. Low-Voltage Withdrawable Switchgear
• GCK series: Composed of power distribution center and motor control center, AC 60Hz, working voltage ~660V, suitable for motor control and lighting equipment.
• GCS series: AC 50Hz, rated voltage 400V, used in power supply systems for industrial and high-rise buildings.
• MNS series: Compact, stable, widely used in small power plants, industrial enterprises, and hotels . 3. Plastic Distribution Boxes
• HA, HK, LGD series: Dimensions range from 100–415 mm (length), 105–323 mm (width), 75–140 mm (height).
• MB-ABC, MB-AF, MB-AS, MB-LF series: Made of flame-resistant ABS plastic, modular design, suitable for AC 50Hz, rated voltage 220V/380V, widely used in homes, hospitals, airports, and commercial buildings . 4. JXF Series Power Distribution Box
• Customizable sizes and specifications according to installation requirements.
• Features zinc alloy AB lock, 180° free-opening door, foam sealing strip.
• Example: JXF box size 600×500×200 mm, thickness 1.0 mm .

Material and Thickness

• Metal boxes: Typically 1.0 mm thick steel or aluminum, robust for industrial use.
• Plastic boxes: Flame-resistant ABS, thickness varies by model, designed for insulation and safety .
• Busbars and droppers: EC grade aluminum, cross-section varies by KVA rating (e.g., 72×50×8 mm for 63/100 KVA, 112×50×15 mm for 160/315 KVA), .

Electrical Specifications

• Voltage rating: 220V–660V AC depending on model.
• Frequency: 50Hz or 60Hz.
• Breaking capacity: Up to 80 kA for isolators in industrial boxes.
• Phase busbars: RYB phase sequence maintained, insulated with PVC sleeves .
• Protection: Porcelain cutouts for outgoing circuits in higher KVA boxes, arc-chutes for isolators .

Structural Features

• Hinged doors (single or double), free-opening up to 180°.
• Foam sealing strips for dust and moisture protection.
• Modular design for easy installation and maintenance.
• Customizable according to user requirements, including size, thickness, and quantity .

Applications

• Industrial and mining enterprises, high-rise buildings, stations, hospitals, schools, and residential complexes.
• Suitable for power distribution, monitoring, metering, and protection of AC circuits below 500V . This overview provides a comprehensive guide to distribution box models, material thickness, electrical parameters, and structural specifications, helping in selection for industrial, commercial, or residential installations.