Multimode Dimmer Module RDM-MDM Manuals

Installation Sheet
RDM-MDM Multimode Dimmer Module
2400 W
The RDM-MDM Multimode Dimmer Module is ideally used in situations 
Caution Pre-Installation Notes:
where the load is not specified or the load may change at the last moment. 

All Class 1 wiring must be connected to proper terminals.
This unit is a unique combination 2400 W Incandescent dimmer, 

All control wiring must be connected to proper terminals.
2400 W Switch, or 2400 W FDB fluorescent dimmer. It consists of a heavy 

Disconnect power while installing or connecting the unit.
duty SSR construction for dimming and a heavy duty positive air gap relay 

Keep top and bottom air vents clear at all times.
for switching. The RDM-MDM module's 120 and 240-277 VAC ratings are 

Test loads for shorts before connecting.
CE, UL, and C-UL approved. 

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 
Mounting points
of the dimmer.

Each dimming circuit must have a separate neutral connection.

All electrical ratings are for continuous duty.

For indoor use only.

AC lighting loads only.

This module may require extra power from the AXlink connection or an 
external power supply connected to the control card.
Connecting RDM Series Modules to the RDM-MDM:
350 µS Choke
Pin 4 (GND)
Pin 3 (RLY)
Pin 2 (DIM)
Pin 1 (+12 V)
RDM-MDM four-pin module connector
Mechanical Relay
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).

2400 W power device
FIG. 2  Connecting RDM series modules to the RDM-MDM
Low-voltage control
wiring: four-pin connector
to AMX Lighting master
RDM-MDM UL and C-UL Ratings:

120 VAC, 50/60 Hz, 2400 W per circuit

240/277 VAC, 50/60 Hz, 2400 W per circuit

Dimensions (HW):  10.00" x 2.75" (25.40 cm x 6.99 cm)

Phase dependant dimming

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: 4.5 lbs (2.04 kg)

BTU/hr: 300

Control current: 190 mA @ 12 VDC
Suggested Loads:
• Incandescent
• Two-wire, phase-controlled ballast
• Low-voltage
• Three-wire, phase-controlled ballast
• Neon, cold-cathode
• Switched fluorescent ballast

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