Installation Sheet
RDM-INC Incandescent Dimmer Module
2400 W
The RDM-INC Incandescent Dimming Module is designed for use with the
RDA series of enclosures, in a AMX Lighting™ modular digital dimming
system. It is a standard 2400 W incandescent dimmer. It can dim incandes-
cent lights, cold-cathode, neon and two-wire dimmable ballasts. The RDM-
INC module's 120, 240, and 277 VAC ratings are CE, UL, and C-UL
approved.
RDM-INC UL and C-UL Ratings:
• 120 VAC, 50/60 Hz, 2400 W
• 240/277 VAC, 50/60 Hz, 2400 W
Suggested Dimmed Loads:
• Incandescent
• Low-voltage
• Neon, cold-cathode
• Two-wire, phase-controlled ballast
Specifications:
• Dimensions (HW): 10.0" x 2.75" (25.4 cm x 6.985 cm)
• Phase dependant
• Use wires rated at 75°C (167°F)
• Torque terminals to 7 in-lbs. (0.8 N/M)
• Max. wire size: 10 AWG (4 mm²)
• Wire stripping length: 0.28" (7 mm)
• Weight: 3.7 lbs. (1.67 kg)
• BTU/hr: 300
• Control current: 45 mA @ 12 VDC
• Choke: 350 µS Rise time @ 120 VAC
175 µS Rise time @ 240 VAC
Caution: Pre-Installation Notes:
• All Class 1 wiring must be connected to proper terminals.
• All control wiring must be connected to proper terminals.
• Disconnect power while installing or connecting unit.
• Keep top and bottom air vents clear at all times.
• Test loads for shorts before connecting.
• Use low voltage wires with a 300 volt rating or greater.
• Use field installed copper conductors.
• Run all low-voltage and control wires away from heat producing parts
of the dimmer.
• Each dimming circuit must have a separate neutral connection.
• All electrical ratings are for continuous duty.
• AC lighting loads only.
• For indoor use only.
• This module may require extra power from the AXlink connection or an
external power supply connected to the control card.
Connecting the RDM-INC to the AMX Lighting Master
Lighting Application Drawing
FIG. 1 RDM-INC
350µS
Choke
Line In
Line Out
Low-voltage control
wiring: 4-pin
connector to AMX
Lighting master
controller
20 A power device
High-voltage
connections
Mounting
points
FIG. 2 Connecting the RDM-INC to the AMX Lighting Master
FIG. 3 Sample wiring diagram
Pin 4 (GND)
Pin 3 (RLY)
Pin 2 (DIM)
Pin 1 (+12 V)
RDM-INC four-pin module connector
4-pin plug from a RDM series module
Note: The 4-pin plugs from the module
connector to the 4-pin connector on the
master (black plug cover facing up).
2 (-)
1 (+)
Neutral
Load
Neutral
Load
Neon lights
(cold-cathode, on/off)
Two-wire dimmable ballast
All neutrals are common
to the Neutral block in the
enclosure. Provide a
separate neutral for each
load.
Load
Line in
(HOT)
Circuit breaker
panel
