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7014NCB Datasheet(PDF) 1 Page - Tyco Electronics

Part # 7014NCB
Description  Industrial Electropneumatic Timing Relay
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Manufacturer  MACOM [Tyco Electronics]
Direct Link  http://www.macom.com
Logo MACOM - Tyco Electronics

7014NCB Datasheet(HTML) 1 Page - Tyco Electronics

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1248
AGASTAT
Dimensions are shown for
reference purposes only.
Dimensions are in inches over
(millimeters) unless otherwise
specified.
Catalog 1308242
Issued 3-03 (PDF Rev. 10-07)
Specifications and availability
subject to change.
www.tycoelectronics.com
Technical support:
Refer to inside back cover.
7000 series
Industrial Electropneumatic
Timing Relay
File E15631
File LR29186
Note:7032 types and certain models with accessories are not agency approved.
Users should thoroughly review the technical data before selecting a product
part number. It is recommended that users also seek out the pertinent
approvals files of the agencies/laboratories and review them to confirm the
product meets the requirements for a given application.
Consult factory for ordering information.
Design Features
• Available in on-delay, true off-delay, and on/off-delay.
• Timing from 0.1 seconds to 60 minutes, in linear increments.
• Oversize time-calibrated adjustment knobs, serrated with high-resolution
markings visible from all angles makes the timer easy to set timers.
• Inherent transient immunity.
• Standard voltages from 6-550VAC and 12-550VDC (special voltages available.)
• Available in 2-pole or 4-pole models.
• Numerous enclosure options:
explosion proof, dust tight, watertight,
hermetically-sealed, NEMA 1.
• Auxiliary timed and instantaneous switches can be added for greater switching
flexibility.
• Many mounting options: Surface mount, Panel mount, Octal plug-in mounting.
• Options: quick-connect terminals, dial stops, and transient protection module.
• Easy-to-reach screw terminals, all on the face of the unit, clearly identified.
• Modular assembly - timing head, coil assembly and switchblock are all
individual modules, with switches field-replaceable.
Design & Construction
There are three main components of Series 7000 Timing Relays:
Calibrated Timing Head uses no needle valve, recirculates air under
controlled pressure through a variable orifice to provide linearly adjustable
timing. Patented design provides instant recycling, easy adjustment and long
service life under severe operating conditions.
Precision-Wound Potted Coil module supplies the initial motive force
with minimum current drain. Total sealing without external leads eliminates
moisture problems, gives maximum insulation value.
Snap-Action Switch Assembly - custom-designed over-center
mechanism provides greater contact pressure up to transfer time for
positive, no flutter action. Standard switches are DPDT arrangement, with
flexible beryllium copper blades and silver-cadmium oxide contacts. Special
"timing-duty" design assures positive wiping action, sustained contact pres-
sure and greater heat dissipation during long delay periods.
Each of these subassemblies forms a self-contained module which is
then assembled at the factory with the other two to afford a wide choice of
operating types, coil voltages, and timing ranges.
The squared design with front terminals and rear mounting permits the
grouping of Series 7000 units side-by-side in minimum panel space.
Auxiliary switches may be added in the base of the unit, without affecting
the overall width or depth.
On-delay model 7012 (delay on pickup)
NOTE: Seismic & radiation tested E7000 models are available.
Consult factory for detailed information.
Operation
Two basic operating types are available.
“On-Delay” models provide a delay period on energization, at the end of
which the switch transfers the load from one set of contacts to another. De-
energizing the unit during the delay period immediately recycles the unit,
readying it for another full delay period on re-energization.
In "Off-Delay" models the switch transfers the load immediately upon
energization, and the delay period does not begin until the unit is de-
energized. At the end of the delay period the switch returns to its original po-
sition. Re-energizing the unit during the delay period immediately resets the
timing, readying it for another full delay period on de-energization. No power
is required during the timing period.
In addition to these basic operating types, "Double-Head" models offer
sequential delays on pull-in and drop-out in one unit. With the addition of
auxiliary switches the basic models provide two-step timing, pulse actuation
for interlock circuits, or added circuit capacity.
Applying continuous voltage to the coil
(L1-L2) starts a time delay lasting for
the preset time. During this period the
normally closed contacts (3-5 and 4-6)
remain closed. At the end of the delay
period the normally closed contacts
break and the normally open contacts
(1-5 and 2-6) make. The contacts re-
main in this transferred position until
the coil is deenergized, at which time
the switch instantaneously returns to
its original position.
De-energizing the coil, either during
or after the delay period, will recycle
the unit within 50 msec.
It will then provide a full delay period
upon re-energization, regardless of
how often the coil voltage is interrupt-
ed before the unit has been permitted
to "time-out" to its full delay setting.
Off-delay model 7022 (delay on dropout)
Applying voltage to the coil (for at
least 50 msec) will instantaneously
transfer the switch, breaking the nor-
mally closed contacts (1-5 and 2-6),
and making the normally open
contacts (3-5 and 4-6). Contacts
remain in this transferred position as
long as the coil is energized. The
time delay begins immediately upon
de-energization. At the end of the de-
lay period the switch returns to its
normal position.
Re-energizing the coil during the
delay period will immediately return
the timing mechanism to a point
where it will provide a full delay
period upon subsequent de-
energization. The switch remains in
the transferred position.
To increase the versatility of the basic timer models, auxiliary switches may
be added to either on-delay or off-delay types. They switch additional circuits,
provide two-step timing action, or furnish electrical interlock for sustained coil
energization from a momentary impulse, depending on the type selected and
its adjustment. Because of their simple attachment and adjustment features,
they can be installed at the factory or in the field, by any competent mechanic.
All auxiliary switches are SPDT with UL listings of 10A @ 125, 250, or 480
VAC. A maximum of one Code T or two Code L auxiliary switches may be
added to each relay. The L or LL switch is available with on-delay relays only.
The T switch is available with both the on-delay and off-delay relays.
Auxiliary Switch Options for On-Delay
Instant Transfer (Auxiliary Switch Code L,
maximum of 2 per relay.)
1. Energizing coil begins time delay and transfers auxiliary switch.
2. Main switch transfers after total preset delay.
3. De-energizing coil resets both switches instantly.
Auxiliary switch is nonadjustable.
Two-Step Timing (Auxiliary Switch Code T,
maximum of 1 per relay.)


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