ALZ Distribution Box Standard Dimensions

ALZ distribution boxes typically follow standard low-voltage enclosure dimensions, ranging from compact wall-mounted units around 200×200×120 mm to larger multi-way boxes up to 800×600×300 mm.

Typical Dimension Ranges

While exact ALZ model dimensions may vary, most low-voltage distribution boxes share these general ranges:

• Small wall-mounted boxes: 200–400 mm height × 200–400 mm width × 120–200 mm depth
• Medium boxes: 400–600 mm height × 300–500 mm width × 150–250 mm depth
• Large multi-way boxes: 600–800 mm height × 400–600 mm width × 200–300 mm depth These dimensions include the external height, width, and depth, while the internal usable space is slightly smaller due to wall thickness, mounting plates, and door returns .

Factors Affecting Box Size

1. Number of ways: ALZ boxes can range from 1-way to 36-ways, with larger boxes accommodating more circuit breakers .
2. Mounting type: Wall-mounted boxes are generally smaller, while floor-standing or freestanding enclosures are taller and deeper .
3. Material and protection: Boxes are often made from thermoplastics (PC, ASA) or powder-coated steel, with IP ratings (IP55 or higher) affecting wall thickness and overall size .
4. Internal layout: Space for busbars, DIN rails, cable entries, and heat dissipation reduces usable internal volume compared to external dimensions .

Recommendations

• Verify technical drawings: Always check the ALZ catalog or datasheet for the specific model to confirm exact dimensions.
• Plan for clearance: Include extra space for wiring, ventilation, and future expansion.
• Consider IP rating and material: Higher protection ratings may slightly increase external dimensions. By following these guidelines, you can select an ALZ distribution box that fits your installation requirements while ensuring safe and organized electrical distribution .