IP23 Enclosures for Transformers

What does the IP23 rating mean?

Under IEC/EN 60529, the first digit indicates protection against solid objects and the second against water. IP23 means:

• 2: protected against objects over 12.5 mm, i.e. against finger contact with live parts;
• 3: protected against spraying water (e.g. rain) at up to 60° from the vertical.

An IP23 enclosure therefore suits a plant room, workshop, riser or sheltered location. Where water may splash onto it, a higher rating such as IP54 is needed; for full exposure to the weather, IP65 or higher. Our protection ratings page explains each level.

Four sizes of IP23 enclosure

• IP23 enclosure 340 x 240 x 345 mm: the most compact, for small transformers and power supplies;
• IP23 enclosure 460 x 320 x 500 mm and IP23 enclosure 520 x 320 x 520 mm: the two mid-size models;
• IP23 enclosure 700 x 480 x 700 mm: the largest size, with front door and side louvres.

Cut and assembled in our workshop in Gailhan, in the Gard (southern France), all are made of anti-corrosion treated steel and let the air circulate: a transformer heats up in use, and the enclosure’s natural ventilation carries that heat away.

Choosing and installing an enclosure

Measure the transformer or equipment to be protected, then allow room for cables, terminals and free space around it so the air can circulate. Keep the ventilation louvres clear once the enclosure is installed. On request, the enclosures can be customised: specific drilling, mounting plate, handles, RAL colour or stainless-steel finish; ask for a quote and we will reply within 48 hours.

Our single-phase and three-phase transformers can also be ordered directly in IP23 or IP54.