Time Mark 339 Data Sheet
MODEL 339
TIME MARK is a division of
On/Off Delay Relay
Provides On Delay & True Off Delay
No Power Required During
Off Timing Cycle
On/Off Time Ranges Up to 5 Minutes
Separate Delay Adjustments
Standard Relay Wiring
DESCRIPTION
The Model 339 ON/OFF Delay Relay is an
electronic time delay relay which provides two
functions: ON delay and true OFF delay. The ON
delay begins when the appropriate power is
applied. The relay contacts will transfer to the
energized state upon completion of the ON delay
period. If power is removed and re-applied before
the delay period is completed, the delay period will
be reset to zero, requiring the full time period to be
completed before the OFF time can be started.
Timing of the true OFF delay period commences
when power is removed. The Model 339 is unique,
as it requires no power to be applied during the
timing of its OFF cycle. This feature allows the
Model 339 to find application in many cases where
delayed action is required when no power is
available.
Each time delay, ON and OFF, is separately
adjustable. The Model 339 uses the same pin-out
configuration as standard time delay and general
purpose relays. It can be used in new or
replacement applications for thermal, pneumatic, or
spring-wound timers, or in place of general purpose
relays or other electronic timers.
SPECIFICATIONS
MODEL 339-24-xxx 339-48-xxx 339-120-xxx 339-240-xxx
Supply Voltage 20-28VAC/DC 40-55VAC/DC 100-140VAC/DC 200-255VAC/DC
Nominal Voltage 24V 48V 120V 240V
Power Consumption
Transient Protection 2500V for 10ms
Timing Ranges
(ON and OFF)
Timing Accuracy ± 2% of all ranges (fixed conditions)
Repeatability ± 1%
Contacts DPDT 10A at 120VAC resistive
Operating Temp 0º to +130º F
Humidity Tolerance 0-97% w/o condensation
Enclosure Material ABS plastic
Mounting
Weight 5 oz.
0.25W max
1.0W max 1.5W max 2.25W max
0.25 to 10 sec; 0.25 to 60 sec;
0.25 to 180 sec; 0.25 to 300 sec
8-pin socket (not included)*
* order 8-pin socket number 51X120
O R D E R I N G O P T I O N S
MODEL VOLTS DELAY
339 24VAC/DC 10 Seconds
EXAMPLE: 339-240-60 orders a 240VAC/DC timer, with a delay range of
48VAC/DC 60 Seconds
120VAC/DC 180 Seconds
240VAC/DC 300 Seconds
0.25 to 60 seconds.
DIMENSIONS
12/2012
© 2012 TIME MARK CORPORATION
MODEL 339
TIME MARK is a division of
Contacts
Delay
Delay
Supply
Voltage
On/Off Delay Relay
READ ALL INSTRUCTIONS BEFORE INSTALLING, OPERATING OR SERVICING THIS DEVICE.
KEEP THIS DATA SHEET FOR FUTURE REFERENCE.
GENERAL SAFETY
POTENTIALLY HAZARDOUS VOLTAGES ARE PRESENT AT THE TERMINALS OF THE MODEL 339.
ALL ELECTRICAL POWER SHOULD BE REMOVED WHEN CONNECTING OR DISCONNECTING WIRING.
THIS DEVICE SHOULD BE INSTALLED AND SERVICED BY QUALIFIED PERSONNEL.
Installation Instructions
Relay ON time must be greater than OFF time to
recharge internal battery.
INSTALLATION
The Models 339 On/Off Delay Relay requires a
standard 8-pin socket for mounting, and uses a
standard pin configuration. Refer to the pin drawing
below, or on the timer, for terminal connections.
PIN DRAWING
NOTE: When installing the Model 339 relay in areas of
high humidity or contamination, it is recommended that
the base area and all exposed metal parts of the socket
be coated liberally with a good quality silicone grease,
such as Dow Corning DC-4 or DC-4X. Insert the unit
into the socket and wipe off excess grease around the
base. This will prevent the entrance of moisture and
other contaminates into the base and socket areas.
TIMING DIAGRAM
APPLICATION NOTE
Shows No Power Applied
OPERATION
When voltage is applied to the Model 339, the LED will
blink during the ON DELAY and then remain on
constantly as the relay energizes. If power is removed
before the ON DELAY time is completed, the relay will
reset and require the full ON time to be completed
before the relay operates when power is reapplied.
When voltage is removed, the Model 339 will remain
energized for the OFF DELAY with the dimmed LED
slowly blinking, then drop-out. If power is removed and
reapplied during the OFF DELAY period, the LED will
be on constantly and reset the OFF DELAY time.
The controls are monitored only while power is applied.
While timing ON, the delay can be reduced by turning
the ON DELAY control counterclockwise while it is
timing. The OFF DELAY cannot be changed while it is
timing.
ACCESSORIES
51X120 8-Pin Socket (required)
98A498 Safety Enclosure (optional)
-with built-in 51X120 8-Pin Socket
98A535 Hold Down Clamp (optional)
WARRANTY
This product is warranted to be free from defects in
materials and workmanship, and is covered by our
exclusive 5-year Unconditional Warranty. Should this
device fail to operate for any reason, we will repair it for
five years from the date of manufacture. For complete
warranty details, see the Terms and Conditions of Sales
page in the front section of the Time Mark catalog or
contact Time Mark at 1-800-862-2875.
12/2012
© 2012 TIME MARK CORPORATION
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