IDEC GT3F Series Data Sheet

GT3F Series

GT3F Series — True OFF Delay Timers

Key features of the GT3F series include:

“True” power OFF-delay up to 10 minutes

•
No external control switch necessary

•
Available with reset inputs

•
Mountable in sockets or fl ush panel

•

Switches & Pilot LightsDisplay LightsRelays & SocketsTimersTerminal Blocks

UL, c-UL Listed
File No. E55996

Specifi cations

Operation True power OFF-delay

Time Range 0.1 seconds to 600 seconds

Rated Voltage

Contact Rating

Contact Form SPDT DPDT

Minimum Power Application Time 1 second

Voltage Tolerance

Repeat Error ±0.2%, ±10 msec

Voltage Error ±0.2%, ±10 msec

Temperature Error ±0.2%, ±10 msec

Setting Error ±10% maximum

Insulation Resistance 100MW minimum

Dielectric Strength

Power Consumption

Mechanical Life 20,000,000 operations minimum

Electrical Life 100,000 operations minimum

Vibration Resistance 100m/sec2 (approximate 10G)

Shock Resistance

Operating Temperature –10 to +50°C

Storage Temperature –30 to +80°C

Operating Humidity 45 to 85% RH

Weight (approximate) 77g 79g

1. An inrush current fl ows during the minimum power application time. AF20: approximate 0.4A,
AD24: approximate 1.2A

2. GT3F does not read the preset time range shown on the knob after power is turned off. Note that minimizing
the preset time, by turning the knob to zero, does not shorten the delay time after power is removed.

Circuit Breakers

GT3F-1 GT3F-2

100 to 240V AC, 50/60Hz

24V AC/DC

250V AC/30V DC, 5A

(resistive load)

AF20: 100 to 240V AC

AD24: 21.6 to 26.4VDC, 20.4 to 26.4VAC

Between power and output terminals:

2,000V AC, 1 minute (SPDT)
1,500V AC, 1 minute (DPDT)

Between contacts on different poles:

1,000V AC, 1 minute (DPDT)

Between contacts of the same pole:

750V AC, 1 minute

AF20: 3.7VA (200V AC, 60Hz)
AD24: 0.8W (DC), 1.2VA (AC)

Operating extremes:

100 m/sec2 (approximate 10G)

Damage limits: 500 m/sec

250V AC/30V DC, 3A

(resistive load)

2

(approximate 50G)

Timers

826

www.idec.com

Timers

GT3F Series

GT3F

Mode of

Operation

Power OFF-delay

Optional reset input resets the contact to the OFF state before time out.

Rated

Voltage Code

AF20: 100 to
240VAC (50/60Hz)

AD24: 24V AC/DC

Time Range Output Contact Optional Input

0.1 seconds to
600 seconds

GT3F-1 Timing Diagrams

GT3F-1 (8-pin) GT3F-1E (11-pin)

Part Numbering List

Complete Part Number

8-Pin 11-Pin

250V AC, 5A,

30V DC, 5A (resistive load) GT3F-1AD24 GT3F-1EAD24

250V AC, 3A,

30V DC, 3A (resistive load) GT3F-2AD24 GT3F-2EAD24

Delayed SPDT Reset

Delayed DPDT

None (8p)
Reset (11p)

GT3F-1AF20 GT3F-1EAF20

GT3F-2AF20 GT3F-2EAF20

Timing Diagrams/Schematics

Delayed SPDT Output, with Reset Input

Switches & Pilot Lights Display Lights Relays & Sockets Timers Terminal Blocks

Item Terminal Number Operation

Power

Reset
Input

Delayed
Contact

Indicator POWER

Set Time

2 - 7 (8p)

2 - 10 (11p)

1 - 4 (8p)

6 - 7 (11p)

T = Set time
Ta = Shorter than set time
Ts = 1 Second
Tr = Minimum Power Application Time
GT3F-1: 1 Second

5 - 8 (8p)

1 - 4 (11p)

6 - 8 (8p)

1 - 3 (11p)

ON or L

(NC)

(NO)

Tr T Ta Ts T

1. For time ranges, see page 829.

2. For sockets and accessory part numbers, see page 838.

3. When power is applied, the NO output contact closes. When power is removed, the timing period
begins. When time has elapsed, the NO contact opens.

4. For the timing diagram overview, see page 794.

Circuit Breakers

USA: 800-262-IDEC Canada: 888-317-IDEC

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