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AT SERIES ARCHITECTURAL DIMMER

Revision 0.1 OWNERS MANUAL 08/29/2003

www.lightronics.com

Lightronics Inc. 509 Central Drive Virginia Beach, VA 23454 tel 757 486 3588

DESCRIPTION OF UNIT

The AT Series Dimmer is a unit specifically optimized for architecural applications. It can be supplied with up to

four 2400 Watt lighting circuits (channels) and be remotely controlled by a DMX lighting console. Some models

are provided with a fast acting 20 Amp magnetic circuit breaker for each channel. A table at the end of this

manual gives a description of the different model numbers. Additional models can be supplied for 220 VAC

operation.

The unit is intended for wall mounting. AT Series dimmers are for INDOOR USE ONLY.

POWER REQUIREMENTS

The AT Series dimmer requires a 120VAC hot power feed line for each lighting circuit (channel), a common

neutral, and an earth ground. Each of these feeds must powered by a circuit providing a minimum of 20 Amps

and supplies only one of the AT Series dimmer lighting circuits. The power feed for channel 1 also powers the

unit's internal electronic circuitry. The internal circuitry is protected by a replacable 1/2 Amp, 250 Volt, fast acting

fuse. The AT dimmer may be operated from either single phase or three phase power and may be switched

between these power types by the user.

INSTALLATION

120VAC

POWER IN

LIGHTING

LOADS

1/2AMP FUSE

AND SPARE

CIRCUIT

BREAKERS

NEUTRALS

GROUNDS

PROGRAMMING

CONTROLS

AND DISPLAY

CIRCUIT

BOARD

AT-402 FRONT VIEW (Cover Removed)

CONTROL

TERMINAL STRIP

1 2 3 4 5 6 7 8

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All Lightronics products are warranted for a period of TWO YEARS from the date of purchase against defects in materials and wo

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