Glossary
Materials and construction
IP66 and IP65 enclosure ratings
Also known as IP66, IP65, ingress protection rating.
IP66 and IP65 are IEC 60529 ingress-protection ratings indicating the degree to which an enclosure protects internal contents from dust and water. Both are dust-tight (the first digit "6"); they differ in water-protection level:
- IP65 — protected against low-pressure water jets from any direction
- IP66 — protected against powerful water jets from any direction
Applications
IP65 and IP66 are the standard ratings for outdoor industrial sonic horn accessories — solenoid valves, cycle controllers, local pressure indicators and isolators. The horn body itself, being a flow-through pneumatic device, is not normally IP-rated.
Related terms
Related terms
- NEMA enclosure ratingNEMA enclosure ratings are the US National Electrical Manufacturers Association standards for electrical enclosure protection. NEMA 4 / 4X are common for outdoor sonic-horn accessories.
- Sonic hornA sonic horn is a pneumatically-driven low-frequency sound emitter (typically 60–400 Hz at 140–180 dB SPL) used to dislodge particulate fouling from boilers, ESPs, baghouses and process vessels.