AMX RDM-3FDB User Manual download pdf

Installation Sheet

RDM-3FDB Triple Channel Lutron FDB Ballast Dimmer

1900 W

The RDM-3FDB Triple Channel Ballast Dimmer is a 1920 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 enclo-

sures, in an AMX Lighting™ modular digital dimming system. The RDM-

3FDB module's 120, 240, and 277 VAC ratings are CE, UL, and C-UL

approved.

RDM-3FDB UL and C-UL Ratings

• 120 VAC, 1920 W

• 240/277 VAC, 1920 W

Suggested Dimmed Loads

• Most 3-wire dimmable fluorescent ballasts

• Lutron

Hi-Lume

FDB Ballasts

• Lutron Eco-10

Dimmable Ballasts

Specifications

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

• Dimmed output protected by a 250 mA GMA 5 x 20 mm fuse

• 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)

• Weight: 1.57 lbs. (0.712 kg)

•BTU/hr: 5

• Control current: 85 mA @ 12 VDC

• 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.

• 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-3FDB to the AMX Lighting Master

Lighting Application Drawing

FIG. 1 RDM-3FDB

Relay

Line in (hot)

Switched out

Dimmed out

Fuse

Positive air

gap relay

Relay

Line in (hot)

Switched out

Dimmed out

Low-voltage control wiring:

4-pin connector to AMX

Lighting master controller

Mounting

points

Ballast A

Ballast B

Relay

Line in (hot)

Switched out

Dimmed out

Ballast C

FIG. 2 RDM-3FDB connections

FIG. 3 RDM-3FDB wiring configuration

Pin 3 (RLY)

Pin 2 (DIM)

Pin 1 (+12 V)

RDM-3FDB 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).

BALLAST

Ballast

Circuit breaker

panel

Line in (HOT)

Switched

Dimmed

Florescent

Ballast

Neutral

All neutrals are

common to the

Neutral block in the

enclosure. Provide a

separate neutral for

each load.

The fuses protect the dimming

circuit from a low impedance

load.

• The fuse would blow if it

were incorrectly wired

• Catastrophic ballast failure

• Reversing switched and

dimmed circuits

• Reversing dimmed and

line circuits.

The dimmed output must be

connected to a high impedance

load.

1 2

Installation Sheet 1

Summary of Contents

Page 1 - Installation Sheet

Installation SheetRDM-3FDB Triple Channel Lutron FDB Ballast Dimmer1900 WThe RDM-3FDB Triple Channel Ballast Dimmer is a 1920 W positive air gap relay

Page 2

AMX Corporation reserves the right to alter specifications without notice at any time. For full warranty information, refer to the AMX Instruction Man

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