EPO-20A
Larson Electronics, LLC
Phone: (800) 369-6671
Fax: (903) 498-3364
www.larsonelectronics.com
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PLUG OPERATION
Electrical connection between plug and compatible receptacle is accomplished
after plug fully inserts into receptacle and rotated clockwise.
1.
Lift receptacle door and locate polarization on mating plug pin and
receptacle face. Insert plug straight all the way into receptacle until it
cannot go further.
2.
Rotate plug clockwise limit (37º), this closes internal contacts and
completes circuit. This also mechanically locks plug into receptacle so it
cannot be pulled out.
3.
To remove plug, push plug inward and turn to counterclockwise, pull plug
straight out.
MOUNTING
The explosion proof receptacle features four, 1/4" mounting holes at every corner of the unit for permanent mounting
installations.
INSTALLATION
1.
Mount back box in desired position following methods that comply with NEC and
any local codes.
CAUTION:
Conduit sealing fittings MUST BE installed in Class 1, Group B
locations to comply with the requirements
in the latest edition of the NEC,
Section 501-5 and/or 502-5 plus any other applicable standards. Sealing fittings
must
be close-nippled to the enclosure.
2.
Pull all power source wiring into back box. Be sure wires are long enough to
make proper connections.
CAUTION:
Use only copper or copper-clad wire with this receptacle.
3.
Attach power source conductors to receptacle terminals in an approved manner.
Black conductor is attached to
bronze screw; white conductor is attached to
silver cadmium screw; and green grounding conductor is attached to the
green
screw.
4.
Push wiring into back box and attach receptacle using the four screws provided.
The preferred arrangement for the
receptacle is with the door hinge on top.
Tighten screws to 30 inch-pounds torque.
OPERATION
1.
Insert plug into receptacle as far as it will go.
2.
Turn clockwise as far as it can go. Internal contacts of the receptacle are closed
by this action and complete the
electrical circuit.
3.
Release plug allowing it to move outwardly slightly, into a locking detent position.
Check by trying to turn and/or pull
out without any inward pressure. Plug should
not pull out.
4.
To remove plug, press inward, turn counterclockwise and pull straight out.
Figure 1
“QW” TERMINAL CONNECTIONS
QW WIRING (See Figure 1) :
NOTE
: Use
only
copper wire with this device (10, 12
or 14 AWG).
Recommended wire strip length – ½
inch nominal (wire strip gauge also
available on the
QW terminal cover). Loosen all (3) Terminal Contact
Screws
and insert wire through the Wiring Entrance
holes, into proper terminals:
Green lead (Ground)
to terminal with ground mark & Green screw head;
White (Neutral) lead to
terminal with Silver screw
head (125V. only); Black and/or Red [Line lead(s)]
to terminal(s) with Brass screw head. Hand tighten
terminal screws
(recommended torque 8 in.-lbs.
