Double-layer distribution box with 20 positions

A double-layer 20-position distribution box is a compact, space-saving electrical enclosure designed for low-voltage power distribution with two levels of terminal connections.

Overview

A double-layer 20-position distribution box typically features two rows of 10 terminals each, allowing for efficient wiring of multiple circuits in a single compact unit. This design reduces the need for separate terminal blocks when connecting two leads per device, which is common in DC circuits or motorized systems. These boxes are often used in industrial automation, building electrical installations, and low-voltage power distribution applications.

Key Features

Terminal Positions: 20 positions arranged in a double-layer or double-row configuration. Fuse Protection: Many models, such as the Altech DDFL4U-A20, include 2A fuses on the top level with a spare fuse for added safety. Space Efficiency: The double-layer design eliminates the need for multiple separate terminal blocks, saving installation space.

Durability: Enclosures are often made from cast aluminum or robust plastic, providing mechanical protection and resistance to dust and water (IP67 rating in some models),. Mounting: Compatible with DIN rail installation, simplifying integration into existing electrical panels. Dimensions: Example dimensions for a double-row 20-position aluminum enclosure are 145 x 125 x 62 mm.

Applications: Suitable for powering DC motorized shades, automation systems, and other low-voltage devices requiring multiple connections.

Advantages

Compact and organized wiring: Reduces clutter and simplifies maintenance. Enhanced safety: Built-in fuses and lever disconnects allow for easy isolation of circuits. Versatility: Can be used in industrial, commercial, or residential electrical setups.

Environmental protection: Many enclosures are dust- and water-proof, suitable for harsh environments.

Considerations

When selecting a double-layer 20-position distribution box, consider: Voltage and current ratings to match your application.

I

P rating for environmental protection. Compatibility with DIN rail or panel mounting. Space requirements and accessibility for wiring and maintenance.

These boxes provide a flexible, reliable, and compact solution for managing multiple electrical connections efficiently, making them ideal for modern electrical installations and automation projects.