Installation Instructions - Progressive Dynamics PD1618 Installation And Operation Manual

Types of AC Strain Reliefs
The PD1600 series inverter includes knockouts for use with a standard 3/8" trade size strain relief. Use of a strain relief is required when
hard wiring your inverter. Neglecting to use a strain relief may cause undue stress and fatigue to the wiring connections on your unit. PDI
lists examples of some commonly utilized types of strain relief. Strain reliefs are not provided with purchase of the inverter, and must be
provided by installer at the time of installation.
Figure 10
Recommend Strain Relief
The type of 3/8" trade size strain relief used is ultimately at the discretion of the installer. PDI can only recommend
types of strain relief for end use, and is not responsible for any misuse or absence of strain relief at installation.
Push-In Style
Halex #20515 or equivalent

3/8" trade size push–in connector-

Material: Zinc plated metal


Installation Instructions

1. Loosen screws on strain relief
2. Slide strain relief over wire to be connected.
3. Remove plastic plug from unit.
4. Push stripped wires into terminal block.
5. Slide strain relief up wire and press securely into opening in unit.
6. Tighten the strain relief using screws on the side
Metal Clamp Style
Halex #20570 or equivalent

3/8" trade size clamp combination connector

Material: Zinc plated metal

Installation Instructions
1. Loosen screws on strain relief.
2. Remove threaded nut from strain relief.
3. Slide strain relief over wire to be connected.
4. Remove plastic plug from unit.
5. Run wires into unit through open hole. Slide threaded nut over wires.
6. Push stripped wires into terminal block.
7. Slide strain relief up wire and insert into opening in unit.
8. Thread nut onto strain relief securely.
9. Tighten the strain relief using screws on the side
Push-In-Style Plastic Clamp
Halex #27515 or equivalent

3/8" trade size clamp combination connector

Material: Plastic

Installation Instructions
1. Slide strain relief over wire to be connected.
2. Remove plastic plug from unit.
3. Push stripped wires into terminal block.
4. Slide strain relief up wire and press securely into opening in unit.
5. Tighten the strain relief by sliding retention clip into slot in strain relief.
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