IP31 Enclosure

Lianjie - Electrical Enclosure Manufacturer - Products - IP Enclosure -

IP31 enclosures protect against solid objects larger than 2.5mm and vertically falling water drops, making them ideal for indoor server racks and IT rooms.

Why IP31 Enclosure

Added Water Resistance

Protects equipment from vertically falling water drops, an upgrade over IP30.

Solid Object Protection

Prevents contact with tools or wires larger than 2.5mm, keeping circuits safe.

Optimized for Indoors

Ideal for server racks, telecom rooms, and IT spaces where minor drips or condensation may occur.

Cost-Effective Choice

Provides basic protection without the expense of higher IP-rated waterproof models.

Supports Ventilation

Often designed with airflow features, balancing equipment cooling and safety.

Custom IP31 Enclosures

Material

Size & Dimensions

Door Style

Accessory

Assembly Enclosure

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Applications for IP31 Enclosure

How We Control Quality

1 step electrical enclosure production process CNC Laser Cutting — 1. CNC Laser Cutting

2 step electrical enclosure production process Forming — 4. Forming

3 step electrical enclosure production process Pressure Riveting — 2. Pressure Riveting

4 step electrical enclosure production process Bending — 3. Bending

5 step electrical enclosure production process Seamless Pressed Corners — 5. Seamless Pressed Corners

6 step electrical enclosure production process Butt Welding — 6. Butt Welding

7 step electrical enclosure production process Auto Laser Welding — 7. Auto Laser Welding

8 step electrical enclosure production process Quality Control — 8. Quality Control

9 step electrical enclosure production process Polishing — 9. Polishing

10 step electrical enclosure production process Acid Pickling — 10. Acid Pickling

11 step electrical enclosure production process Powder Coating — 11. Powder Coating

12 step electrical enclosure production process PU Foaming — 12. PU Foaming

13 step electrical enclosure production process Assemble — 13. Assemble (if need)

14 step electrical enclosure production process Final Inspection — 14. Final Inspection

15 step electrical enclosure production process Packaging — Packaging

16 step electrical enclosure production process shipping — 15. Packaging & Shipping

Our Certificates

All IP Rating Enclosures

More Certificate Enclosures

About IP Rating & IP31

The IP rating (Ingress Protection) system defines how well an enclosure prevents solids and liquids from entering. The first digit rates solid protection, while the second digit measures water resistance.

An IP31 enclosure blocks solid objects larger than 2.5 mm, such as tools and thick wires, and protects against vertically falling water drops. This makes it suitable for indoor server racks, telecom rooms, and office distribution systems where minor drips or condensation may occur.

IP31 vs IP41 vs IP54

Feature	IP31	IP41	IP54
Solid Protection	Objects ≥ 2.5mm	Objects ≥ 1mm	Limited dust ingress, no harm
Water Protection	Vertical water drips	Vertical water drips	Water splashes from any direction
Typical Use	Server racks, telecom rooms	Indoor control panels, clean rooms	Workshops, light industrial, semi-damp areas
Relative Cost	Low	Moderate	Higher

IP31 & NEMA Type 2

An IP31 enclosure provides protection against solid objects larger than 2.5 mm and vertically falling water drops. In the NEMA standard, this level of protection is most closely aligned with a NEMA Type 2 enclosure, which also guards against limited dust, accidental contact, and dripping water in indoor environments.

While the two systems are tested differently, using IP31 ≈ NEMA 2 as a reference helps engineers and buyers ensure the right choice for controlled indoor applications such as server racks, utility rooms, and light industrial facilities.

Maintenance & Care Tips

Inspect Door Seals Regularly – Check gaskets and seals for wear to maintain dust and water protection.
Clean Surfaces & Coatings – Wipe off dust, oil, or salt buildup and keep anti-rust coatings in good condition.
Check Hinges & Locks – Ensure doors close tightly and hardware remains secure for lasting protection.

Need IP Rating Enclosure or Custom Rating

FAQs About IP31

What does IP31 mean for an enclosure?

The IP31 rating guards against solid objects larger than 2.5 mm (like tools or wires) and protects against vertically falling water drops (condensation). It’s designed for indoor environments with minor moisture risks.

Is an IP31 enclosure waterproof?

No. An IP31 enclosure offers no waterproof capabilities—it only protects against vertical drips. It’s not suitable for splash protection or wet environments.

Where are IP31 enclosures typically used?

IP31 enclosures are commonly used in indoor server racks, telecom rooms, IT cabinets, and office environments where dripping condensation may occur and cooling airflow is still important.

What is the difference between IP30 and IP31?

IP30 only protects against solid objects larger than 2.5 mm and offers no water protection. IP31 adds protection against vertically falling water drops (like condensation), giving it a slight edge in moisture-prone indoor spaces.

Does IP31 allow ventilation for server racks?

Yes. IP31 provides tool-sized solid protection and condensation resistance while still allowing airflow—making it ideal for server racks and IT equipment that require cooling in controlled indoor environments.

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IP31 Enclosure