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Distribution Box Equipment Dimension Specifications Table

Distribution boxes vary in dimensions, mounting sizes, and number of ways, with specifications depending on type, material, and protection rating.

General Specifications

Material: Typically fabricated from 2 mm GI sheet steel for outdoor LT distribution boxes, with reinforced body and slanted roof for water runoff. Industrial boxes may use UL-compliant plastics or metals for IP67-rated protection. Protection Rating: Commonly IP55 for outdoor LT boxes and IP67 for industrial automation boxes.

Locking & Hinges: Godrej-type 3-position locking system with concealed hinges; manual locking provisions are galvanized to prevent rust. Earthing: Two solid earthing points on either side of the box. Cable Entry: Heavy-duty, double compression cable glands for incoming and outgoing cables; detachable plates for fixing cable glands.

Bus Bars & MCCBs: Copper flat bus bars (e.g., 25x4 mm) with insulation tubing; provision for 4-pole MCCB and outgoing feeders with 2- or 3-pole MCCBs. Dimension Specifications Table (Illustrative)Distribution Box TypeNumber of WaysLength (mm)Width (mm)Height (mm)Mounting SizeTOP-TS1–12200–600150–400100–300Standard DIN/Wall Mount TOP-TF1–18250–700200–450120–350Standard DIN/Wall Mount TOP-LS1–24300–800250–500150–400Standard DIN/Wall Mount TOP-PS1–30350–900300–550180–450Standard DIN/Wall Mount TOP-PF1–36400–1000350–600200–500Standard DIN/Wall Mount TOP-S1–36450–1100400–650220–550Standard DIN/Wall Mount Notes: Dimensions are illustrative; tolerances of ±10% may apply.

Standard cable lengths for pre-wired boxes range from 1 m to 10 m, with options for customization. Boxes may include LED indicators for power and function, and support M8, M12, or M16 connectors for industrial applications.

Additional Features

Environmental Resistance: IP67-rated boxes are oil-resistant, vibration-resistant, and suitable for harsh industrial environments. Customization: Labels, coding, pre-wiring, and high-flex cables are available for automation and robotics applications. Testing & Certification: Outdoor LT boxes require type-test certificates for IP protection, impulse, and short-circuit tests from CPRI or government-approved labs.

This table and specifications provide a comprehensive overview for selecting distribution boxes based on size, capacity, protection, and application requirements.

Distribution Box Equipment Dimension Specifications Table

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Technical note

This reference is intended for preliminary fiber and communications infrastructure research. Optical interface, fiber type, port or core capacity, electrical input and output, enclosure protection, cooling, installation limits and applicable standards must be verified for the specific project.

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