Rack Dimmer Unit
Technical Specifications
UL Listed
DIMMER MODULE
Functions
Initial Level, Slope, Autodim, Flicker, Two (2) Work Circuits, Test
Dimmer
Control Input
Analog: 0-10 Volts DC
Autodim: Switch closure or open collector gate (active low)
Dimmer
Output
Load: 0.1A min. To 20A max. (resistive or inductive)
Response time: Adjustable from 100ms to 10 sec.
Initial
Level
Adjustable from full off to full on
Slope
(y=mx+b)
Positive slope for normal dimmer operation
Negative slope for dimmer output that is the inverse of control input
Functions in either ANALOG or AUTODIM mode
Autodim
Switch closure or open collector gate (active low)
Independently adjustable rates up and down - 100ms to 10 sec.
Adjustable Initial Level and Slope
Dimming
Curve
Switchable between square law and crossfade
Work Circuits
Sends dimmer output to maximum level, overrides other inputs
Switch closure or open collector gate (active low)
Two (2) independent control busses (Switch selected on each module)
Integral 20 Amp circuit breaker each module
RACK DIMMER HOUSING
Capacity
Holds 12 individual 2K watt modules
Convection
Cooled
No fans, operation up to 40°C ambient
Control
Input Connections
40-pin PC edge connector (compatible with Flat Ribbon wire transition)
Optional dual row 20-pin barrier strip
Power
Input
Three
(3) 110-125 VAC, single phase feeds, 80 Amps maximum per feed
Optional three (3) 220-250 VAC single phase feeds, 80 Amps maximum per
feed (jumper selected)
50Hz or 60Hz operation (jumper selected)
#2 wire clamps for: hot for each feed, neutral, and ground
Accepts 2.5" conduit
Output
Connection
#12 wire clamps for hot neutral, and ground, for each dimmer output
Accepts 2.5" conduit
Construction
Steel cabinet, textured baked enamel finish (black)
Reversible rails provided for wall or rack mount
Approval
Approved by the Los Angeles City Electrical Testing Laboratories
Dimensions
W 17.4" x H 12.2" x D 8.2" (44.2cm x 31cm x 20.8cm)
With mounting rails W 19.0" (48.25cm)
Weight
34.5 pounds (15.7Kg)