GE Industrial Solutions Power Mark Gold Generator Interlock Kit - Manual

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DEH41103 Installation Instructions For
PowerMark Gold Generator Interlock Kit
Power Mark Gold

Generator Interlock Kit
Cat# THQLLX1
WARNING: Hazard of electrical shock or burn.
Turn off power supplying this equipment before working inside.
General
To comply with the National Electrical Code and Underwriters
Laboratories, the Generator Interlock kit must be installed in accordance
with the information contained in this sheet and by a qualified electrical
contractor and/or licensed electrician.
Introduction
This bulletin provides instructions for installing the interlock & circuit
breaker retainer on 150 - 255A rated Model 6 PowerMark Gold

GE
Load centers.
The retainer is used to secure a 2-pole branch breaker on the load center
interior in spaces 2 & 4 when the breaker is used as a back-fed main
circuit breaker for generator power.
The interlock slides between the handle of the 4-pole main circuit
breaker and the handle of 2-pole back-fed main circuit breaker to make
sure that only one main circuit breaker is in the ON position at a time.
Installation
Step 1 – Install the Retainer
1. Uninstall the Dead front/shield and retain the mounting screws.
2. Install the 2-pole back-fed main circuit breaker in position 2-4
only. See the load center directory label or numbers stamped on the
dead front/shield to locate position 2-4.
3. Install the conductors into the 2-pole back-fed circuit breaker. See
the circuit breaker for wire range and tightening torque
information.
4. Install the retainer and secure with the 2 nuts provided with the kit.
Tighten to 35 lb-in(4Nm). See figure 1.
Fig 1
(4-pole Main breaker not shown)
Step 2 – Drill the Mounting Holes
The template is provided to ensure proper alignment of the
interlock.
1. Locate the Dead front/shield removed earlier in Step 1.
2. Insert the folds of the template in the knockout of 4-pole
main breaker and slide towards the branch breaker
knockouts until it ceases to slide further. See figure 2.
3. Drill two pilot holes through the two identified holes in
the template for mounting the interlock bracket using a
3/32 in. (.093) drill bit.
4. Remove the drill template and re-drill the two the pilot
holes with ¼ drill bit.
5. Turn the front/Shield over and remove the burrs from the
holes.
Fig 2
Step 3 – Mounting the Interlock
1. Turn the front/shield back to the front side and position the
interlock over the two holes drilled in Step 2.
2. Mount the interlock using the 2 screws, washers, and nuts
provided. Tighten to 45lb-in(5 Nm). See figure 3.
3. Make sure both 4-pole main and 2-pole back-fed circuit
breakers are in the OFF position before reinstalling the
dead front/shield to the load center.
Folds