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O-Ring Material
Specifications Met
Electrical Enclosure Drains
 |  |
Style A | Style B |
Mount these drains at the bottom of your enclosure to let moisture drip out and keep electronics dry.
Style A—Style A drains have a gasket that seals out air, water, and dust during high-pressure washdowns or when submerged. They also meet UL 94 V-0 for flame retardance.
Style B—Style B drains are for use in dusty and wet environments.
Style | Thread Type | Thread Size | For Hole Dia. | Head Dia. | For Max. Panel Thk. | Material | Enclosure Rating | Environment | Specs. Met | Flammability Rating | Each | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | Metric | M50 x 1.5 mm | 2" | 2 3/8" | 3/16" | Plastic | IP66, IP67, IP69K | Dusty, Washdown, High-Pressure Washdown, Outdoor, Submersible, Wet | UL 746C f1 | UL 94 V-0 | 7066K41 | 000000 | |
| B | Metric | M3 x 0.5 mm | 5/8" | 15/16" | 0.079" | Plastic | IP55 | Dusty, Washdown, Wet | — | — | 7066K511 | 0000 |
Hazardous-Location Electrical Enclosure Drain Vents
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Glass-Filled Nylon |
 |
316 Stainless Steel |
Safe for use around hazardous gasses and dust, these drain vents maintain steady pressure and prevent moisture buildup from temperature changes inside enclosures. They allow air to flow through the enclosures while protecting the contents from washdowns, dirt, and weather. Install these drain vents at the lowest point on an enclosure, so moisture can drip out.
Increased Safety—Increased-safety drain vents keep sparks, high temperatures, or current creepage inside an enclosure, so they won’t ignite flammable gasses and dust.
Flameproof—Flameproof drain vents reduce the risk of igniting flammable gasses and dust if an explosion occurs within the enclosure.
Glass-Filled Nylon—Glass-filled nylon drain vents are lightweight yet durable. They’re good for most areas.
316 Stainless Steel—316 stainless steel drain vents stand up to corrosion. They’re best for areas with salt water.
Thread Size | Ht. | Enclosure Rating | Nut Material | O-Ring Material | Color | Max. Temp., ° F | Hazardous Location Rating | Each | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Increased-Safety Drain Vents | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Glass-Filled Nylon | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| M20 × 1.5 mm | 1 1/4" | NEMA 4X, IP66 | Brass | Buna-N | Black | 185 | ATEX II 2DG IECEx Ex Tb IIIC Db IECEx Exe II Gb NEC Class I Division 2 Groups A, B, C, D | 5901N15 | 000000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
316 Stainless Steel | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| M20 × 1.5 mm | 1" | NEMA 4X, IP66 | 316 Stainless Steel | Buna-N | — | 185 | ATEX Ex E IIC Gb ATEX Ex Tb IIIC Db IECEx Ex E IIC Gb IECEx Ex Tb IIIC Db NEC Class I Division 2 Groups A, B, C, D | 5901N11 | 000000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| M25 × 1.5 mm | 1 5/16" | NEMA 4X, IP66 | 316 Stainless Steel | Buna-N | — | 185 | ATEX Ex E IIC Gb ATEX Ex Tb IIIC Db IECEx Ex E IIC Gb IECEx Ex Tb IIIC Db NEC Class I Division 2 Groups A, B, C, D | 5901N2 | 000000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Flameproof Drain Vents | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
316 Stainless Steel | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| M20 × 1.5 mm | 1" | NEMA 4X, IP66 | — | Silicone Rubber | — | 300 | ATEX Ex D IIC Gb ATEX Ex E IIC Gb ATEX Ex Tb IIIC Db IECEx Ex D IIC Gb IECEx Ex E IIC Gb IECEx Ex Tb IIIC Db NEC Class I Division 2 Groups A, B, C, D | 5901N13 | 000000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| M25 × 1.5 mm | 1 5/16" | NEMA 4X, IP66 | — | Silicone Rubber | — | 300 | ATEX Ex D IIC Gb ATEX Ex E IIC Gb ATEX Ex Tb IIIC Db IECEx Ex D IIC Gb IECEx Ex E IIC Gb IECEx Ex Tb IIIC Db NEC Class I Division 2 Groups A, B, C, D | 5901N14 | 000000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
