Specialty Relays
SCE Series, Specification Grade Discrete Plug-in,
True Off-Delay Time Delay Relay
CAUTION: If unit has not been
energized for several months,
apply operating voltage for 20
minutes prior to initial time
delay.
Timing Specifications
Timing Modes
—
True Off-Delay — Upon application of
operating voltage (min. 100ms), output
relay contacts transfer. When operating
voltage is removed, the time delay
period is initiated. At the end of the delay
period, output relay contacts release.
If operating voltage is reapplied prior to
expiration of the delay period, the delay
will be cancelled and output relay con-
tacts will remain transferred.
Timing Ranges
—
0.1 to 3 / 0.5 to 15 / 1 to 30 / 4 to 120 /
10 to 300 sec.; 0.33 to 10 min.
Timing Adjustment
—
Knob adjustment — Internal poten-
tiometer with external knob adjustment.
Maximum time calibrated with +10%, –
0% of values shown below at rated volt-
age, at 68°F.
Fixed time — internal fixed resistor.
Users should thoroughly review the
technical data before selecting a product
part number. It is recommended that user
also seek out the pertinent approvals
files of the agencies/laboratories and
review them to ensure the product meets
the requirements for a given application.
Accuracy
—
Repeat Accuracy — ±1
Overall Accuracy — ±5%
Reset Time
— 30 ms. min.
Relay Operate Time
— 30 ms.
Input Data @ 25°C
Voltage
— See Ordering Information
section for details
Power Requirement
— 750mW
Transient Protection — 1,000V plus
twice rated voltage for 0.1 ms
Contact Data @ 25°C
Arrangements
— 1 Form C (SPDT)
and 2 Form C (DPDT)
Rating
—
1 Form C — 10A @ 120/240VAC,
resistive; 1/3 HP @ 120VAC; 345VA @
120VAC; 1/4 HP @ 240VAC; 275VA @
240VAC. Same polarity.
2 Form C — 5A @ 28VDC or
120/240VAC, resistive; 1/6 HP @
120/240VAC; 200VA @ 120/240VAC.
Same polarity.
Expected Mechanical Life
—
10 million operations
Expected Electrical Life
— 200,000
operations, min., at rated resistive load
Initial Dielectric Strength
—
Between Terminals and Case and relay
contacts and active circuitry —
1,480VAC for one minute
Environmental Data
Temperature Range
—
Storage — -40°C to +85°C
Operating — -30°C to +65°C
Mechanical Data
Mounting/Termination
— 8-pin
octal plug fits either 27E122 or 27E891
(snap-on) socket (order separately)
Weight
— 4 oz. (112g) approximately
Product Facts
n
n
n
n
True Off-Delay timing modes
Six time delays from 0.1
sec. to 10 min.
10A SPDT or 5A DPDT
output contacts
Excellent repeat
accuracy — typically better
than ±1%
8-pin octal plug.
File E15631, File LR51332
R
R
n
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Ordering Information
SCE
|
(All "X's" must be included to complete part number)
1.97
(50)
.60
(15)
3.25
(83)
R
X
|
|
|
Output Rating
Series SCE
|
True
|
W = 10A (SPDT)
Off-delay
|
X = 5A (DPDT)
|
Timer
|
Agency
Recognition
R = UL recognized
2
2
|
|
|
Output
|
|
1 = SPDT (W)
|
2 = DPDT (W)
|
|
1.97
(50)
Operating
Mode
2 = True
Off-Delay
A
|
|
|
|
|
|
|
|
|
|
|
C
|
Timing Range
A =0 .1 to 3 sec.
B = 0.5 to 15 sec.
C = 1 to 30 sec.
E = 4 to 120 sec.
G = 10 to 300 sec.
L = 0.33 to 10 min.
Outline Dimensions
Wiring Diagrams (Bottom Views)
Operating Voltage
(+10%, –15%)
A = 120VAC, 50/60
Timing Adjustment
Hz. / 125VDC
A = Knob Adjust
E = 24VAC, 50/60 Hz.
F = Fixed Times –Specify
/ 24VDC
time delay in seconds
F = 48VAC, 50/60 Hz.
per the following
/ 48VDC
examples:
XF9.000 = 9 sec.
XF99.00 = 99 sec.
XF999.0 = 9999 sec.
XF1000 = 1000 sec.
A
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Fixed Time
Or Knob Adjust
Fixed Time
Or Knob Adjust
Authorized distributors are likely to stock the following:
None at present.
12–36
Catalog 5-1773450-5
Revised 3-13
www.te.com
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
Dimensions are in millimeters
unless otherwise specified.
USA: +1 800 522 6752
Asia Pacific: +86 0 400 820 6015
UK: +44 800 267 666
For additional support numbers
please visit www.te.com
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