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EN3 MINI WEATHERTIGHT CONNECTOR SERIES
CONNECTORS & RECEPTACLES
?
FAX: 773 792-2129
* Please visit the product pages on our website for the most up-to-date product information
EN3 ? MINI WEATHERTIGHT CONNECTOR SERIES
41
GENERAL FEATURES AND BENEFITS
? Great all-purpose connector “weather” or not sealing feature is required.
? Superior leakage protection. Contact area is double-sealed for
excellent moisture and chemical resistance when mated to
Switchcraft’s connectors.
? Integral O-ring and gasket. O-ring is molded onto cord housing
assembly and gasket is molded onto panel housing assembly
to prevent leakage and eliminate need for additional O-rings
and gaskets.
? Reduced part count for reduced labor to assemble.
? No Grommets. Cable clamp assembly features living hinges,
which snap easily onto and support the cable.
Cord
Connector
? Thermoplastic rubber body simulates closed entry contact
system to prevent probe damage or accidental loss of
spring retention due to misaligned or bent pins.
? Abrasion-resistant thermoplastic boot provides strain relief
ENVIRONMENTAL
Panel
Connector
and accepts cable diameter .195" to .265".
? Housing rated UL 94V-O against flammability.
? Panel connector shell features a positioning keyway to prevent
misalignments and a polarizing single “D” design for proper panel
mounting and to prevent rotational movement.
? 2-18 pins.
? Exceeds Coast Guard specifications for water tightness
(CFR 46 Part 110.20).
? Optional cap covers panel housing assembly when not in use.
? Exceeds enclosure rating IP16/IP18 when not mated or
covered and IP66/IP68 when mated or covered (IEC 529).
? Exceeds enclosure rating 6P at 1000V when mated or covered (NEMA 250).
MATING INSTRUCTIONS FOR A CORD CONNECTOR TO A
PANEL MOUNT OR IN-LINE CONNECTOR
First, align the notched keyway on both the panel mount or in-line and
Temperature Limits: -40°C to +65°C (non-operating)
Moisture Resistance: Mil-Std 202 Method 106F
Insulation Resistance: Mil-Std 202 Method 302
condition B
Thermal Shock: Mil-Std 202 Method 107G
Salt Spray: Mil-Std 202 Method 101D condition B
RATINGS
IP16/IP18 CFR 46 Part 110.20
IP66/IP68 UL 94V-O
NEMA 250 (6P)
Patent 5,485,673 File 36049
EN3 ? Weathertight Connector Current Carry Capability
(per UL 498 Standard)
cord connector. Then, push the cord connector onto the mating connector.
Grasp the coupling ring between the slots, push it toward the panel
50.00
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mount connector and rotate it clockwise nearly one half a turn. Continue
rotating until you feel the coupling ring ride over the locking “bump”. This
40.00
▲
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■
◆
is the locked position. The cord connector is not securely in place unless
this procedure is followed.
APPLICATIONS
30.00
20.00
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▲
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10.00 ◆
Process Control
Marine Electronics
Medical Instrumentation
Geothermal Instrumentation
Communications
Transportation
General Industrial Electronics
Harsh Environments
0.00
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7
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10
12
13
15
MATERIALS
Cord and panel connector shells, contact locking disk,
Current (Amps) - w/14 AWG Wire
◆ Female 3 pin ▲ Female 8 pin
and cable clamp assembly: Thermoplastic polymer glass
■
Male 3 pin
? Male 8 pin
fiber, flame retardant
Coupling ring: Nylon
Rear boot and connector shell interior: Thermoplastic rubber
Contacts: Copper base alloy gold-plated over nickel underplate
Dielectric Withstanding Voltage
Contact size/
SPECIFICATIONS
MECHANICAL
Shock: Mil-Std 202 Method 213B, condition K
Vibration: Mil-Std 202 Method 201
Life: 600 insertion/withdrawal cycles (minimum)
ELECTRICAL
Voltage Rating (sea level): Tested at 600 VRMS
Insulation Resistance: 100 megohms (minimum) at 77° F
Contact Resistance: 5 milliohms (maximum)
Current Rating: 3.0 Amps (#26 contact)– 9 through 18pin
6.5 Amps (#20 contact)– 7 and 8 pin
7.5 Amps (#20 contact)– 2 through 6 pin
13.0 Amps (#16 contact)– 2 and 3 pin
DIMENSIONS ARE FOR REFERENCE ONLY
Inch
(mm)
number of contacts
#20-2
#20-4
#20-3
#16-2
#20-7, #20-8
#16-3
#20-5, #20-6
Voltage
3000
2000
1000
SWITCHCRAFT, INC. 5555 N. Elston Ave. ? Chicago, IL 60630
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