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MS-AT-7A-HV-WP

 

Weatherproof Motion Sensor

7A Max Load - High Voltage - Adjustable Time

Instruction Manual

Thank you for your purchase of the Larson Electronic

s MS-AT-7A-HV-WP motion sensor.

WARNING: 

READ CAREFULLY BEFORE INSTALLING FIXTURE. RETAIN THESE INSTRUCTIONS FOR FUTURE REFERENCE. 

CRITICAL SAFETY INSTRUCTIONS: 

INSTALLATION SHOULD ONLY BE CONDUCTED BY A QUALIFIED ELECTRICIAN IN ACCORDANCE WITH NEC AND ANY

RELEVANT LOCAL BUILDING CODES.

RISK OF FIRE OR ELECTRIC SHOCK. FIXTURE INSTALLATION REQUIRES KNOWLEDGE OF 

FIXTURE'S

 ELECTRICAL

SYSTEMS. IF NOT QUALIFIED, CONTACT A QUALIFIED ELECTRICIAN.

BE CERTAIN ELECTRICAL POWER IS OFF BEFORE AND DURING INSTALLATION AND MAINTENANCE.

MAKE SURE THE SUPPLY VOLTAGE IS THE SAME AS THE

 FIXTURE'S

 RATED VOLTAGE.

TO PREVENT WIRING DAMAGE OR ABRASION, DO NOT EXPOSE WIRING TO EDGES OF SHEET METAL OR SHARP

OBJECTS. SUITABLE FOR DAMP LOCATIONS.

The MS-AT-7A-HV-WP from Larson Electronics is a Weather Proof Motion Sensor that allows operators to add motion 

sensing functionality to existing fixtures. This motion sensor can operate on 120V AC, 220V AC or 240V AC (specified 

when ordering) and has a max amp load of 7 amps while only consuming approximately 0.5 watts of power.

Larson Electronics, LLC

 

Phone: (877) 348-9680

 Fax: (903) 498-3364 

  www.larsonelectronics.com 

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Mounting

The MS-AT-7A-HV-WP from Larson Electronics is enclosed in a 

case with surface mounting tabs on the back to allow for mounting 

to any flat surface. There are pre-drilled holes in the tabs to be 

used with mounting hardware of your choice. Mounting hardware is 

not included, but is available from Larson Electronics if needed. Be 

sure sensor is mounted in a location in appropriate proximity to the 

location in which you want motion to be detected, based on the 

settings you select with the dip switches. 

Wiring

We strongly encourage a licensed electrician install this product

, in all locations, 

especially in outdoor areas where weatherproofing may be required.

Warning:

 

Check product label for correct input voltage!

 

Secure each pair of wires according to the diagram. Utilize a junction box or similar 

device and take precautionary steps for weatherproofing all connections if installed in 

a location where water may come in contact with the unit. Ensure the unit is properly 

grounded and that wiring is done according to all local and national electrical/building 

codes.

 

This sensor is designed to 

connect one load only

, connecting more than one

load may result in damage or destruction to the sensor. 

Dip Switch Settings

1.

Detection Area:

2. Hold Time:

1

2

ON

ON

100%

ON

-

75%

-

ON

50%

-

-

10%

3

4

5

ON

ON

ON

5s

-

ON

ON

30s

ON

-

ON

1min

-

-

ON

3min

ON

ON

-

20min

VI

-

-

-

30min

Note: 

Front cover 

must be removed 

from enclosure to 

access dip 

switches.

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