Intermatic Fm1d20a User manual

FM1D Series

One Circuit Electronic

24 Hour or 7 Day Time Switches

FM1D20A

(surface mounting)

FM1D20E

(flush mounting)

APPLICATION

Time based control of lighting, ventilating, heating, cooling or other

electrical loads in commercial and industrial applications. The

FM1D Series time switches are programmable for 24-hour or

7-day schedules.

The FM1D20A and FM1D50A Series Time Switches are intended

for either surface or Din Rail mounting. The control is completely

enclosed in a plastic housing and includes a terminal cover and

sub-base for installation and hard wiring.

The FM1D20E Series and FM1D50E Series Time Switches are

intended for flush (panel) mounting.

Both models are supplied with a clear plastic dust cover.

TECHNICAL DATA

Output–1 SPDT relay with dry contacts

Switch Rating:

N.O. Contact:

-1/2hp, 120 V ac

-1hp, 240 V ac

-8 A, 24 V dc resistive

-16 A, 277 V ac resistive

-12 A Ballast, 120 V ac

-8 A Ballast, 240 V ac

-720 VA 240 V ac Pilot Duty

-360 VA 120 V ac Pilot Duty

-1000W Tungsten,240 V ac

-600W Tungsten,120 V ac

3 year Reserve (Non-Replaceable Battery)

Supply voltages: Separate Models –

FM1D20Series: FM1D50 Series:

24VAC/DC, 12 VAC/DC,

120VAC, 24 VAC/DC,

240VAC, 120 VAC,

240 VAC.

All Models 60Hz (refer to product label)

Shortest switch time–1 minute

Ambient Temperature Range –14°F to 131°F (–10°C to 55°C)

VA required: 120V & 240V models: 4VA

24V model: 2VA @ 24VAC, 1VA @ 24VDC

Screw terminal connections (FM1D20A and FM1D50A)

1/4” quick connects (FM1D20E and FM1D50E)

Accuracy ± 4 minutes per year

Agency Approvals: UL Recognized

INSTALLATION

To the installer:

1. Read operating instructions carefully.

2. Check the input and output ratings marked on the unit to

make sure this product is suitable for your power supply and

application.

3. Disconnect power supply prior to installation to prevent

electrical shock.

4. Wire in accordance with National and Local electrical code

requirements.

SURFACE MOUNTING—FM1D20A and FM1D50A

Remove dust cover, loosen two screws on opposite corners.

Remove the housing that surrounds the time switch and the

terminal cover away from the base. Remove timer module by

pulling straight out.

Place screws through 3 mounting holes in base and screw to

back panel or wall.

Wire in accordance with instructions. Replace terminal cover

and push timer firmly onto base. Now replace housing and

secure with screws.

PANEL MOUNTING—FM1D20E and FM1D50E

Cut a square hole 2-5/8” x 2-5/8” (66mm x 66mm) in the front

of the panel. Insert the time switch through the opening. With

a screwdriver, press down and turn outer screws (A) until

flanges are in position to fasten the unit in front panel, then

release. Insert plugs into holes (B).

Use 1/4” quick connects and make connections in accor-

dance with the wiring diagram shown and applicable code

requirements.

WIRING

1. Disconnect the power.

2. Wire input to timer,

24531

COM

120V

LINE

NEUTRAL

NO NC

LOAD

M, with the

proper voltage marked on the unit.

Wiring to incorrect voltage will void

the warranty.

3. Connect wiring according to the

wiring diagram. The terminals on

the Digi 20A sub-base will

accommodate 10 to 24 AWG wire.

Terminal Connections

N.C. Contact

-16 A, 277 V ac resistive

-8 A, 24 V dc Pilot Duty

-360 VA, 120 V ac Pilot Duty

Ex On 7 am 30 Mon., Tue., Wed., Thurs, Fri.

Prog ON/OFF h m Day(s)

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158--01449

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FM1D Series Program Schedules

INTERMATIC INCORPORATED

PRINTED IN MEXICO

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