Installation Manual

Larson Electronics LLC www.LarsonElectronics.com [e-mail]
9419 E US HWY 175, Kemp, TX 75143 - P: [phone] - F: [phone]
EPP-15A
IMPORTANT: These plugs must be installed by trained, qualified and competent personnel.
NOTE: All installations must comply with applicable local and/or national electrical codes, as well as
safety practices for this type of equipment.
WARNING: Electrical power must be OFF during installation. Disconnect supply circuit and Lock Out.
CAUTION: To reduce the risk of ignition of hazardous atmospheres, do not use in Class II, Group F
locations that contain electrically conductive dusts. Before installing, check the carton label and product
nameplate to be sure you have the correct type.
INSTALLATION
1. Loosen (2) screws (with lock washers) “A” in plug face and pull Plug Contact Assembly (with
gasket) form Plug Body. NOTE: Fiber insulator should remain in Plug Body. Loosen (2) screws “B”
at back of plug to remove Cord Clamp Cover.
2. Strip cord jacket and wire insulation from #12 or #14 (as required) AWG type SR, SO, ST or STO
cord, per strip gage shown below. Cord diameter must be .540 to .635 inches. Do not use cords
of smaller diameters.
3. Loosen (2) Cord Clamp screws “C” and feed cord, prepared end first, through Cord Clamp Cover
and Cord Clamps. Lubricate approximately 1-1/2” of prepared end of cord jacket with a suitable
lubricant and insert cord through sealing Grommet into Plug Body.
4. Loosen all (3) Wire Terminal screws and insert wire into proper terminals: Green lead (Ground)
to terminal by Green mark; White (Neutral) lead to terminal by White mark (125V only); Black
and/or Red (Line Lead) to unmarked terminal. Hand tighten terminal screws to 8 in. lbs. Torque.
5. Check to make sure fiber insulator is installed in Plug Body. Properly align the Plug Contact
Assembly (with gasket) and slide Plug Body down over contact assembly until seated. Insert (2)
screws and lock washers “A” and tighten to 8 in. lbs. Torque.
6. Tighten Cord Clamp screws “C”, alternating between them to equalize torque. Tighten until
clamps firmly grip cord to prevent movement.
7. Position Cord Clamp Cover; insert and tighten (2) screws “B”. Check for ground continuity
between ground post and plug body. Check for discontinuity between live spade contacts
and/or plug body.
OPERATIONAL DATA
1. Lift receptacle door and insert plug all the way into the receptacle.
2. Turn plug to clockwise limit (45°). This closes internal contacts and completes circuit.
3. Release plug. Plug will move outward to “LOCK” position. Check by trying to turn plug without
pushing inward; plug should not turn.