AMX RDM-HFDB User Manual

Installation Sheet

RDM-HFDB Heavy Duty FDB Module

2400 W

The RDM-HFDB Heavy Duty FDB Module is a heavy-duty, 2400 W positive
air gap relay and dimmer, built for strength and for reliable switching/dim­ming of Lutron FDB ballasts. It is designed for use with the RDA series of
enclosures, in a AMX Lighting™ modular digital dimming system. The
RDM-HFDB module's 120, 240, and 277 VAC ratings are CE, UL, and C-UL
approved.

Mounting points

High

voltage

connections

FIG. 1 RDM-HFDB

Line in (hot)

Positive air
gap relay

Neutral

Switched out
Dimmed out

Solid state relay

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

High
voltage
connections

RDM-HFDB UL and C-UL Ratings

• 120 VAC, 2400 W

• 240/277 VAC, 2400 W

Suggested Dimmed Loads

• Lutron© FDB Ballasts

• Lutron ECO-10
for more information)

®

Ballasts (refer to the AMX Lighting instruction manual

Specifications:

• Dimensions (HW): 10.0" x 2.75" (25.4 cm x 6.99 cm)

• Phase dependant

• Use wires rated at 75°C (167°F)

• Torque terminals to 20 in-lbs. (2.3 N/M)

• Max. wire size: 10 AWG (4 mm²)

• Wire stripping length: 0.28" (7 mm)

• Weight: 1.50 lbs. (0.680 kg)

• BTU/hr: 150

• Control current: 135 mA @ 12 VDC

• Use Dimming Curve 6 (refer to the Programming AMX Lighting
instruction manual for more information).

• For use with FDB ballasts.

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 the 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.

• All electrical ratings are for continuous duty.

• 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-HFDB to the AMX Lighting Master

Pin 3 (RLY)
Pin 2 (DIM)

Pin 1 (+12 V)

RDM-HFDB 4-pin module connector

3 (-)
2 (AC)
1 (+)

4-pin plug from 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-HFDB and AMX Lighting Master

Lighting Application Drawings

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

Florescent Ballast

Ballast

Switched

Dimmed

Line in (HOT)

Neutral

Circuit breaker
panel

FIG. 3 RDM-HDC application wiring

RDM-HFDB

NEUTRAL LINE SWITCHED DIMMED

Neutral

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 Corporat ion 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 support 800.932.6993

043-019-2239 10/01 ©2001 AMX Corporation. All rights reserved.