Lex PowerGATE LELTS-1 Series Manual

Emergency Lighting
Transfer Switch
Installation Instructions &
User Manual
LM-ELTS REV.000
Switches & Panels
PowerGATE™

PowerGATE™ Emergency Lighting Transfer Switch
Contact Lex Products: 800.643.4460 [email protected]
2
Table of Contents
3 Introduction
4 Product Components
5 Step 1: Shipment: Unpacking and Inspection
6 Step 2: Installation of the ELTS Enclosure
7 Step 3: Planning Wire Entry into the Cabinet
8 Step 4: Connecting Power
10 Step 5: Operation
11 Technical Support

PowerGATE™ Emergency Lighting Transfer Switch
Contact Lex Products: 800.643.4460 [email protected] 3
Introduction
–This manual details the installation and use of your Lex Emergency Lighting Transfer Switch. Before installation read this manual in
its entirety. Store this manual in a safe location for future reference.
–How to use this manual:
• This manual covers two product variants
◊LELTS–XX-1 has individual 120VAC, 20A circuit emergency power feeds for each output circuit (Discrete feed)
◊LELTS-XX-3 has a single 120/208 3Ø emergency power feed (Main feed)
• For the remainder of the document the different variants will be referred to as “discrete feed” and “main feed”
WARNING
–This equipment has the potential to be the source of an electric shock hazard. Take extreme caution when the cabinet door is
opened and the system is energized
–This equipment should only be installed, commissioned and serviced by qualied service personnel
–Tools Needed:
• Blade screwdriver (3/16” blade)
• Phillips screwdriver
• Metric Allen key set (Main feed panels only)
• Socket wrench for mounting bolts
• Drill suitable for drilling holes in wall to mount the panel
• Metal punches to make conduit entry holes in cabinet
• Wire strippers
• Pliers
• Anchors suitable for the wall that the ELTS is to be mounted on are required, and are not included.

PowerGATE™ Emergency Lighting Transfer Switch
Contact Lex Products: 800.643.4460 [email protected]
4
Lex PowerGATE™Emergency Lighting Transfer Switch Components
Normal Operation Indicator
Transfer Relays
Test Key Switch
Emergency Operation Indicator
Door Latch and Lock
Emergency 3Ø Supply
(Main version only)
Monitored Normal 3Ø Supply
Controller Supply Fuses
Voltage Dropout Adjustment
Programmable Logic Controller
Auxiliary, Fire Alarm & Generator Start
Circuits from Dimmers
To Load Circuits
20A Type J Fuses

PowerGATE™ Emergency Lighting Transfer Switch
Contact Lex Products: 800.643.4460 [email protected] 5
INSTALLATION
Step 1: Unpack and Inspect
Before you begin your installation, carefully check your shipment to ensure it arrived complete and undamaged.
1. Check the shipping container for obvious physical damage such as:
• Torn or opened container
• Water stains or wetness
• Crushed or punctured container
2. If you nd damage, document it to help with a claim against the shipper
3. Unpack your order and check the contents against the packing list to ensure your order is complete
4. Open the cabinet door and check for loose components or broken components as the result of shipping vibrations and handling
• Tighten anything that has come loose
• If it can’t be tightened or if something is broken, contact Lex Technical Services at 800.643.4460
5. For any of the above issues, or any other concerns, call Lex Customer Service at 800.643.4460

PowerGATE™ Emergency Lighting Transfer Switch
Contact Lex Products: 800.643.4460 [email protected]
6
Step 2: Installation of the ELTS Enclosure
When considering the mounting location and planning the installation of the ELTS, take into account the following:
–Depending on the number of circuits and features of your system, enclosure size will vary
• Consider the overall cabinet mounting dimensions (Height, Depth and Width) when selecting the mounting location
–Leave adequate space around the cabinet for entry
• You must mount the cabinet with sufcient front clearance (minimum 3 ft, 2 inches) to allow the door to open completely
–Ensure that there is adequate space around the cabinet for conduit
• On Main Feed cabinets, the emergency feed conduit may require additional space to meet NEC bend radius requirements
–Mount the cabinet on a load bearing wall, in a location where it will not be subject to tampering or vandalism
• Choose a location where it will be the most likely to be secure from damage from re, ood, or other conditions and incidents
that will require its used
• If there are any doubts about about a location’s suitability, contact Lex Technical Services
–Do not install the cabinet inside any other electrical or conned enclosure provided
• Anchors suitable for the wall material will be required
– NOTES:
• After determining where to mount the cabinet, make sure you have adequate equipment to lift and support the cabinet in
place while securing it to the mounting location
• The cabinet has pre-drilled mounting holes in each of the 4 corners
• Secure the cabinet to the mounting location using the 7/16” diameter screws (not included)
• Anchors suitable for the wall the panel is to be mounted on will be required and are not included

PowerGATE™ Emergency Lighting Transfer Switch
Contact Lex Products: 800.643.4460 [email protected] 7
Step 3: Planning Wire Entry into the Cabinet
–Refer to Figure 1 for recommended conduit entry locations
–Please note that main feed and discrete feed models have different terminal block locations.
FIGURE 1
Recommended Conduit Entry Locations Into Cabinet
NOTES:
–For ease of wiring, the product has been designed so all electrical connections terminate in the top and right side of the cabinet
– Main Feed Series Panels
• The emergency power conduit enters the top of the panel directly above the lugs marked 208 VAC Emergency Power
– Discrete Feed Series Panels
• The emergency feed conduit circuits, the normal feed circuits and the load circuits, enter the right side of the panel, close to
their respective terminal blocks
• Control, normal power sensing and options connect within the areas noted in the example diagram above
–Do not run the control, normal power sensing, or option conductors in the same conduit used for the emergency power conductors

PowerGATE™ Emergency Lighting Transfer Switch
Contact Lex Products: 800.643.4460 [email protected]
8
Step 4: Connecting Power
WARNING
–To prevent death or serious injury due to electrical shock, both normal and emergency power must be turned off during the
installation, servicing or maintenance of the system
Connecting Emergency Power:
– Main Feed
• For the Main Feed series, the emergency power lugs are located in the top center of the cabinet
• Create an appropriately sized hole for the conduit directly above the power lugs
• Install the conduit and pull the emergency power conductors into the cabinet
• Connect the appropriate conductor to the corresponding lug and tighten each phase conductor and neutral as follows:
• The Main Feed terminal blocks support wire sizes from #14 to 350kcmil. Ground is from #6AWG to 250kcmil.
– Discrete Feed
• On the Discrete Feed series panels, connect each emergency supply circuit to the terminal block marked 120V Emergency Power
Inputs, located on the right side of the cabinet
• Tighten each connection to 25 lb-in
– Connecting Normal Power - Main Feed and Discrete Feed Versions:
• The normal 120V circuits (often from dimmers) are connected to the terminal block marked as 120V Normal Power Inputs, located
on the right side of the cabinet
• NOTE: Each normal circuit must be protected with a 20A circuit breaker located at the source cabinet
• The 120V Normal Power Input terminal blocks support the following wire sizes:
Connecting the Lighting Loads - Main Feed and Discrete Feed Versions:
–The output load terminal block is on the right side of the cabinet.
–Connect the load conductors to the 120V Load terminal block
–The terminal blocks support the following wire sizes:
Wire Size Torque
350-#3/0 200 lbs-in
2/0-#1 100 lbs-in
#2-#6 80 lns-in
#8-#14 35 lbs-in
Wire Size Torque
#22 - #10 AWG 25 lbs-in
Wire Size Torque
#22 - #10 AWG 25 lbs-in

PowerGATE™ Emergency Lighting Transfer Switch
Contact Lex Products: 800.643.4460 [email protected] 9
–Remove the shorting jumper from between the “AUX” terminal blocks and connect your auxiliary control conductors
– NOTE: If the Auxiliary activation circuit is not going to be used, leave the shorting jumper in place
Connecting the Generator / Engine start circuit:
–The ELTS can be used to start a standby generator in the event of a power failure or emergency event
• Please note that your generator must support the remote start feature
• Consult your generator manual for details
–When the ELTS is in Emergency mode the GEN contacts are closed providing a closed circuit to the generator.
–To connect the Generator Start signal wires, rst locate the terminal block marked GEN, AUX, FA on the right side of the panel
• Connect your generator control conductors to the terminals marked GEN
– NOTE: Refer to your generator installation manual for start circuit wiring details
Step 4: Connecting Power (continued)
208V Monitoring Connections:
–The ELTS monitors the normal power to determine when a normal power failure occurs
–Sensing wires are required from a 3-pole breaker (not included) plus neutral, from the same normal feed as the circuits being
transferred
–Connect the sensing wires from the normal feed to the three phases and neutral on the terminal block labelled 208 VAC Monitored Power
–Terminals accept #22-#10 AWG conductors and should be tightened to 25 lb-in
– NOTE: Power sensing conductors must be 12 AWG or larger
Connecting the Fire Alarm Interface:
–You can connect your system to a re alarm interface so that it switches to the emergency mode when the re alarm is triggered
–The interfacing re alarm system is a 120 VAC circuit that must be able to provide an
open signal when it activates
–To connect the Fire Alarm signal wires, locate the terminal block marked Gen, Aux,
FA on the right side of the panel
–Remove the shorting jumper from between the “FA” terminals and connect your re
alarm control conductors.
– NOTE: If the Fire Alarm activation circuit is not going to be used, leave the shorting
jumper in place.
Connecting the Auxiliary Interface:
–You may connect your system to an auxiliary interface so that it switches to the
emergency mode when the auxiliary circuit is opened
–An example of an Auxiliary device would be a remote key switch
–Your auxiliary circuit is a 120 VAC circuit that must be able to provide an open signal
when it activates
–To connect the Auxiliary device signal wires, rst locate the terminal block marked GEN,
AUX, FA on the right side of the panel

PowerGATE™ Emergency Lighting Transfer Switch
Contact Lex Products: 800.643.4460 [email protected]
10
Step 5: Operation
WARNING
–Testing may only be performed by qualied personnel
–Having an energized open cabinet presents a serious electric shock hazard that could result in serious injury or death
Testing:
1. Apply 208 VAC monitoring power to the system
• In one (1) minute the circuit transfer contactors for the normal power will latch
2. The PLC will display “Auto-Switch Monitoring Inputs” on the LCD
3. At this time the green indicator light in the cabinet door will be illuminated
• If this is not the case, then the PLC will need to be placed in the active monitoring mode
To place the PLC in monitoring mode:
1. Press the “Menu” button
2. Press the “down arrow” button and select “RUN”
3. Once in the run mode, the LCD will display “Auto-Switch Monitoring Inputs” and the green indicator light in the cabinet door will
be illuminated
4. Once the circuit transfer contactors for the normal power have latched and the green indicator lamp is illuminated, apply normal power
and emergency power to the system
5. Test the system using the test key.

PowerGATE™ Emergency Lighting Transfer Switch
Contact Lex Products: 800.643.4460 [email protected] 11
Conditions:
–When a condition is detected that will switch the system to the emergency mode, the condition will be displayed on the PLC
display.
–The messages that can be displayed are:
– NOTE: The red indicator on the door will be illuminated during any failure mode.
Supply Voltage Measurements
–Once power has been applied to the system, use an AC volt meter to conrm that all normal and emergency voltages are within
+/- 10% of rated nominal voltage for that circuit
Time delays on transfer functions
–When the system is rst powered up, there is a 5 second delay before the normal power contactors are pulled in
–Similarly, when the system is switching from the emergency mode back to the normal mode there is a 1 minute delay from the
time the normal monitored inputs are recognized until the time the circuit transfer contactor are switched and the system is
energized with normal power.
Technical Services Team
–Lex Products is available to help answer any installation or operation inquiries
–If you have questions, need technical advice or have suggestions regarding this product, please contact us at 800.643.4460 or
email us at [email protected]
Connection Conductor Size
Auto-Switch Monitoring Inputs Normal operation, monitoring inputs
Loss Of Normal Power
One or more of the 3 monitored phases are absent
Undervoltage condition exists
Incorrect phase rotation
Test Switch Activation The test switch has been activated
Aux. Input Activation The external Aux. control circuit has been opened
Fire Alarm Activation The Fire Alarm control circuit has been opened

Lex Products
11 Forest Parkway
Shelton CT 06484
203.363.3738
203.363.3742 Fax
Lex West
12701 Van Nuys Blvd.
Suite Q
Pacoima CA 91331
818.768.4474
818.768.4040 Fax
www.lexproducts.com
[email protected]
800.643.4460
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PowerGATE™
Emergency Lighting Transfer Switch
Installation Instructions &
User Manual
Switches & Panels
PowerGATE™
TYPE 3R
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