EN3 weathertight connector
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Cord and panel connector shells, contact docking disk and cable clamp assembly- Thermoplastic polymer glass fibre, flame retardant
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Coupling ring- Nylon
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Rear boot and connector shell interior- Thermoplastic rubber
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| Contacts- Copper base alloy gold-plated over nickel under plate.
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| Electrical |
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Current - 7.5 Amps (#20 contact) 6.5 Amps (#20 contact) - 7 and 8 pin
13.0 Amps (#16 contact) - 2 and 3 pin
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Voltage (Sea level) - 600 VRMS |
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Contact Resistance - 5mΩ max |
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Insulation Resistance - 100 megohms (minimum) at 77C
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| Mechanical |
| Shock- Mil-std 202 Method 213B, condition K
| | Vibration- Mil-std 202 method 201
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Life- 600 insertion/ withdrawal cycles (minimum)
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| Environmental |
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Temperature limits- -40C to +65C (non operating)
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Moisture resistance- Mil-std 202 method 106F
| | Insulation resistance- Mil-std 202 method 302 condition B
| | Thermal shock- Mil-std 202 method 107G
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| Ratings |
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IP16/IP18 CFR 46 Part 110.20
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IP66/IP68 UL 94V-O
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NEMA 250 (6p)
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Patent 5,485,673 File 36049
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EN3 weathertight connector
Switchcraft expands the EN3 series up to 18 pins. The EN3 series is a popular plastic connector series that meets a number of harsh weather environmental ratings.
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The EN3 is now available with from 2 through to 18 pins. The 2-8 versions carry the same environmental ratings as the 9-18, which include IP66/ IP68 and NEMA 250, when mated (Exceeds enclosure rating IP16/ IP18 when not mated or covered.) The 9-18 pin versions are only available with solder terminals. The solder terminals come in two styles, straight or staggered. The straight style has equal length terminals, all facing the same way. The staggered version has the inner set of terminals longer than the outer set. Also, the staggered terminals face radially away from the center of the connector, to make soldering much easier. The 9-18 versions carry the same environmental ratings as the 2-8, which include IP66/IP68 and NEMA 250, when mated.
There is an integral O-ring and gasket. The O-ring is moulded onto the card housing assembly and the gasket is moulded onto panel housing assembly to prevent leakage and eliminate the need for additional O-rings and gaskets. There is a reduced part count which means reduced labour during assembly. The EN3 connector has no grommets but has cable clamp assembly features which snap easily onto and support the cable. EN3s have a thermoplastic rubber body which simulates a closed entry contact system to prevent probe damage or accidental loss of spring retention due to misaligned or bent pins.
An abrasion resistant thermoplastic boot provides strain relief and accepts cable diameter 5mm to 6.7mm. Housing rated UL 94V-O against flammability. Panel connector shell features a positioning keyway to prevent misalignments and a polarising single 'D' design for proper panel mounting and to prevent rotational movement.
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Features
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| 2-8 pin versions are available in solder, crimp, straight and right angled PC versions.
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9-18 pin versions available in solder terminals only, either straight or staggered for easier soldering.
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Exceeds enclosure rating IP16/IP18 when not mated or covered
and IP66/IP68 when mated.
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Exceeds US Coast Guard specifications for water tightness (CFR 46 part 110.20)
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UL 94V-O rated material
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Gold plated pins and contacts to reduce contact resistance.
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FURTHER INFORMATION |
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