Plastic distribution box shells vary in size depending on series and configuration, with typical dimensions ranging from 100–415 mm in length, 105–323 mm in width, and 75–140 mm in height.

Common Series and Dimensions

MB-ABC Series (Flush Type, ABS Plastic):

• MB-ABC500: 200 mm (L) × 174 mm (W) × 95 mm (H)
• MB-ABC700: 255 mm × 172 mm × 95 mm
• MB-ABC900: 328 mm × 172 mm × 95 mm These boxes are modular and suitable for AC 50Hz circuits with rated voltages of 220V/380V, widely used in residential, commercial, and industrial applications . MB-AF Series (Flush Modular, ABS Plastic):
• 6-way: 185 mm (L) × 141 mm (W) × 60 mm (H1)
• 8-way: 230 mm × 175 mm × 74 mm (H2)
• 12-way: 308 mm × 209 mm × 99.5 mm (H3)
• 16-way: 233 mm × 290 mm × 103 mm
• 24-way: 314 mm × 344 mm × 103 mm
• 36-way: 314 mm × 428.7 mm × 103 mm These enclosures feature flame-proof, impulse-proof, and excellent insulation properties, conforming to BS EN60439-3 and JB/T7121-93 standards . EKDB10 Series (IP65 Waterproof, PC Plastic):
• Available in 4–39 ways, with single, double, or triple layers
• Designed for industrial, commercial, and photovoltaic applications
• Dimensions vary according to the number of ways and layers, providing flexibility for indoor and outdoor installations . AXM Series (ABS Plastic, Semi-Transparent):
• Supports wall-mounted (surface) and wall-embedded (concealed) installation
• Material: ABS engineering plastic with semi-transparent sight glass
• Dimensions are designed to suit different installation environments, though specific measurements depend on the model . Ex9XG Series (Outdoor/Construction Use):
• Suitable for outdoor charging stations, gardens, bathrooms, and construction sites
• Provides waterproof, moisture-proof, dustproof, and smoke-proof protection
• Dimensions vary by model, designed for robust environmental resistance .

Material and Installation Notes

• Most plastic distribution boxes are made of ABS or PC engineering plastics, offering mechanical strength, flame resistance, and insulation.
• Boxes can be wall-mounted or embedded, with modular designs allowing for multiple ways (outlets) and layers.
• IP ratings (e.g., IP65) indicate protection against dust and water ingress, important for outdoor or industrial applications . These dimensions and specifications help in selecting the appropriate distribution box shell for electrical installations, ensuring compatibility with modular components, environmental conditions, and safety standards.