AMX RDM-INC User Manual

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 incandes­cent lights, cold-cathode, neon and two-wire dimmable ballasts. The RDM­INC module's 120, 240, and 277 VAC ratings are CE, UL, and C-UL
approved.

Mounting
points

Line In

Line Out

350µS
Choke

20 A power device

Low-voltage control
wiring: 4-pin
connector to AMX
Lighting master
controller

High-voltage
connections

• 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

Pin 4 (GND)
Pin 3 (RLY)

Pin 2 (DIM)
Pin 1 (+12 V)

RDM-INC four-pin module connector

2 (-)
1 (+)

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).

FIG. 2 Connecting the RDM-INC to the AMX Lighting Master

Lighting Application Drawing

All neutrals are common
to the Neutral block in the
enclosure. Provide a
separate neutral for each

Line in
(HOT)

Load

load.

FIG. 1 RDM-INC

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.

Circuit breaker
panel

FIG. 3 Sample wiring diagram

Neutral

Load

Neon lights
(cold-cathode, on/off)

Neutral

Load

Two-wire dimmable ballast

AMX Corporation reserves the right to alter specifications without notice at any time.

For full warranty information, refer to the AMX Instruction Manual(s) associated with your Product(s).

The AMX logo is a trademark of AMX Corporation. AMX Cor poration reserves the right to alter specifications without notice at any time.

3000 research drive, richardson, TX 75082 USA • 469.624.8000 • 800.222.0193 • fax [phone] • technical suppor t 800.932.6993

043-019-2206 8/01 ©2001 AMX Corporation. All rights re served.