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Myers Emergency Power Systems, LLC  

44 S. Commerce Way 

Bethlehem PA 18017 

      

610-868-

3500 ǀ 

www.MyersEPS.com 

 

MODEL RLY-SW-2 INSTALLATION INSTRUCTIONS

 

 

IMPORTANT SAFEFGUARDS  

WHEN USING ELECTRICAL EQUIPMENT, BASIC SAFETY PRECAUTIONS SHOULD ALWAYS BE 

FOLLOWED. THESE INCLUDE:  

 

READ AND FOLLOW ALL SAFETY INSTRUCTIONS  

1.  This product can be used with LED, ballast, tungsten, and general use loads. 

 

2.  Make sure all connections are in accordance with the National Electrical Code and local regulations. 

 

3.  To reduce the risk of electric shock, disconnect both normal and emergency power supplies before servicing. 

 

4.  This product is intended to be used to control indoor and outdoor located loads. 

 

5.  An unswitched AC power source is required (120-240VAC/ 277VAC). 

 

6.  Do not install near gas or electric heaters. 

 

7.  Do not attempt to service a sealed Emergency Power Control. If it is malfunctioning, return to the manufacturer, 

Myers Emergency Power Systems, LLC, 44 S. Commerce Way, Bethlehem, PA 18017. 

 

8.  The use of accessory equipment is not recommended by the manufacturer and may cause an unsafe condition. 

 

9.  Do not use this product for other than intended use. 

 

10.  Servicing should be performed by qualified service personnel. 

 

11.  Equipment should be mounted in locations and at heights where it will not readily be subjected to tampering by 

unauthorized personnel.  

 

SAVE THESE INSTRUCTIONS  

5-Year Limited Warranty  

Myers Emergency Power Systems, LLC warrants to the original purchaser/users for the published warranty period 

from the date of shipment that should Myers EPS equipment prove defective by reason of improper workmanship or 

material, Myers EPS will repair or replace the same equipment without charge. This warranty does not cover defects 

or malfunctions arising from improper installation, operation, repair or neglect, accident, or abuse. Myers EPS will 

honor its warranty provided the equipment has not been physically damaged or improperly installed or connected. To 

obtain warranty/repair within the warranty period, the defective product should be shipped freight prepaid to the 

address at the bottom of this document. To the extent permitted by applicable law, all warranties extending beyond 

repair or replacement as described above are disclaimed. This includes implied warranties of merchantability and 

fitness for a particular purpose. Where applicable law prohibits disclaimers or the implied warranties of 

merchantability and fitness, those warranties are limited to 12 months from date of shipment. Myers EPS provides a 

90-day money back guarantee if equipment does not perform in accordance with the Myers EPS published 

specifications. The liability of Myers EPS and its agents under all warranties is limited to repair and replacement as 

described herein and under no circumstances shall there be liability for any other kind of loss, damage, or labor—

either consequential or for injury to a person or property or otherwise. 

 

Electrical Specifications 

 

120-240/277V Sensing Input 

 

20 Amp Ballast Load Rating (120-277V) 

 

20 Amp General Use Rating (120-277V) 

 

1200W Incandescent Load Rating (120V) 

 

1500W Incandescent Load Rating (277V) 

 

Normally Closed Output Contact 

 

UL924 Listed (U.S. UL/cUL)

  

  

 

Mechanical Specifications 

 

Mounts in 4-11/16” Junction Box with Extension Box 

 

Use single gang plaster ring or blank cover 

 

Suitable for installation in the plenum 

 

Tested to UL2043 UL94-5VA Plastic Flame Rating 
Shipping Weight: 8 oz Color : White 

 

Temperature: -10°C-60°C (14°F - 140°F) 

 

Flush Mounted Size: 4-1/2” x 2-3/4” x 1/4” 

 

Body Size: 2-7/8” x 1-3/4” x 1-7/32”

 

 

Summary of Contents for RLY-SW Series

Page 1: ...equipment without charge This warranty does not cover defects or malfunctions arising from improper installation operation repair or neglect accident or abuse Myers EPS will honor its warranty provided the equipment has not been physically damaged or improperly installed or connected To obtain warranty repair within the warranty period the defective product should be shipped freight prepaid to the...

Page 2: ...s the need for manual monthly testing and is approved for this purpose This allows installation in any location because its test switch does not need to be accessible This feature can be disabled in the field by cutting the blue jumper Inverter or Fire Alarm Remote Test Switch Some applications demand that emergency lighting be activated upon fire alarm security alarm or remote test switch activat...

Page 3: ...nience to occupants do not turn off regular utility power until you have checked each device as follows 1 Check that regular branch circuit breaker is connected and utility power is available The green LED should be lit If the green LED is not lit check connections and continuity to branch circuit breaker 2 Check that the emergency branch circuit breaker is connected and emergency power is availab...

Page 4: ...O the emergency light only needs a single ballast driver The Normal Only light s shown are separate light fixtures that you want to control with the same switch but which do not serve as emergency lighting during a power interruption Can I use the RLY SW 2 with 3 way switches YES replace the single pole wall switch above with your 3 way switches Can I use the RLY SW 2 with A B switching YES but yo...

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