ATC-Automatic Timing & Control 314B Series Data Sheet

The ATC 314 is an economical multi-range solid-state TDR with two models; one
for off-delay (delay-on-break) and one for interval-on-delay operation. With
three dial-selected adjustable ranges, it provides any timing period between

0.035 and 100 SEC with excellent repeat accuracy even with wide changes in
voltage, temperature and reset time.

OFF-DELAY MODEL: Presuming the AC line is energizing the unit continuously,
when the start switch is closed the relay energizes, the pilot light goes on and
the unit resets. Opening the start switch begins the timing cycle. A relaxation
oscillator runs at a rate determined by the set pot. When the oscillator count is
equal to the level set by the range switch, a digital count circuit is satisfied and
the unit times out.

At time out, the timing circuit and relay are de-energized and the pilot light
goes off. Closing the start switch resets the unit. After a power failure (or on
first startup) the unit will go to the timed out condition (relay de-energized)
until the unit is reset by closing the start switch to begin a new cycle.

INTERVAL-ON-DELAY MODEL: Timing begins when the start switch is closed;
simultaneously the relay is energized and the pilot light goes on. Either a
momentary/sustained start or a sustained start input can be used (see wiring).
Reset is accomplished by de-energizing the unit. At time-out, the timing circuit
and relay are de-energized and the pilot light goes off.

E48329

Plug-In Multi-Range

Of-Delay/Interval

WIRING

INTERVAL-ON-DELAY
Momentary or Sustained
Start Sustained Start*

TERMINAL WIRING

OFF-DELAY(Delay on
Break)(Drawn power
off-relay de-energized)

MODEL NUMBER

MODEL NUMBER

RANGE
Three dial-selected ranges 134

(1 SEC,10 SEC,100 SEC)
Special 000

VOLTAGE & FREQUENCY
120 VAC, 50/60 Hz Q
240 VAC, 50/60 Hz R
24 VAC, 50/60 Hz T
Special K

ARRANGEMENT
Off-Delay mode 2
Interval mode 3

FEATURES
Standard C
Special K

ACCESSORIES
Surface Mounting Socket 000-825-63-00
Retaining clip for use with socket 319-025-06-00
Panel mount bezel kit 319-261-44-00
Panel mount socket kit 314-260-07-00

314B

TIME DELAY RELAYS 314B Series

11 PIN SURFACE MOUNT SOCKET

Automatic Timing & Controls

MODELS OFF-Delay mode
Interval mode

RANGES AND Three dial-selected adjustable ranges
MINIMUM SETTINGS 0.035–1.0 SEC

0.18–10 SEC

1.8–100 SEC

LOAD RELAY TYPE DPDT, hard wired
CONTACT RATING LIFE 50,000,000 operation (no load)

CONTACT 7A resistive at 120 or
RATING 240V 1/10 HP at 120V

TEMPERATURE 32 to 158° F (0 to 70° C)
RATING

MOUNTING PLUG-IN 11-PIN BASE;mounts in any position

OPTIONAL: surface-mounting socket panel-
mounting bezel kit plug-on socket kit

POWER REQUIREMENTS 120 VAC 95 to 132V, 50/60 Hz, 0.02A
240 VAC 190 to 264V, 50/60 Hz, 0.02A

SETTING ACCURACY 10% at full scale

REPEAT ACCURACY Varies as a function of line voltage and

temperature but not of reset time (see
Recycle Characteristics)
± 1% of setting or 2.0 mSEC, when temperature
is constant and line voltage is constant or varies
within limits*
± 4% of setting or 2.0 mSEC, when line voltage
is constant and temperature varies within limits*
± 6% of setting or 2.0 mSEC, when line voltage
and temperature vary within limits*

TIME DELAY RELAYS 314B Series

*Variations of line voltage must be within 95 and
132V; of temperature between 0° and 70°C
(32° and 158°F);and reset/start time must be
at least 75 mSEC.

RESET TIME OFF-DELAY: 75 mSEC during timing or after time-out

START INTERVAL-ON-DELAY: 45 mSEC (for momentary start wiring)

POWER INTERRUPTION OFF-DELAY A power failure over 5 mSEC during timing will

cause relay drop-out. If power is restored in up to
75 mSEC, the unit will re-energize its relay and
continue timing. If the power loss is over 75 mSEC
the unit will lock in to the timed-out (relay
de-energized) position until reset.
INTERVAL-ON-DELAY
A power failure over 5 mSEC causes relay
drop-out. Restoring power in up to 75 mSEC
will re-energize the relay and timing will
continue. A power loss over 75 mSEC will
always reset the timer fully.

HOUSING Dust, moisture and impact-resistant molded plastic case

WEIGHT NET: 6 oz. SHIPPING: 10 oz.

DIMENSIONS (INCHES/MILLIMETERS)SPECIFICATIONS

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Automatic Timing & Controls