Specialty Relays
SRC Series, Specification Grade Repeat Cycle, Plug-in Time Delay Relay
Timing Specifications
Timing Modes
—
Repeat Cycle: Application of line voltage
starts the pre-set OFF-time period Upon
expiration of the period, the output relay
is energized, its contacts transfer, and
the pre-set ON-time period begins. At
the end of this period the output relay is
deenergized, and a new cycle begins.
The OFF and ON cycles continue until
power is removed. To reset the timer,
input voltage must be removed for at
least 25 ms.
Timing Ranges
— OFF time and ON
time ranges need not be the same.
6 to 180 cycles; 0.1 to 3 / 1 to 10 / 0.5
to 15 / 1 to 30 / 2 to 60 / 4 to 120 / 6 to
180 / 10 to 300 sec.; 0.33 to 10 / 0.5 to
15 / 1 to 30 / 2 to 60 min. (All are
+10%, –1% of maximum values).
Timing Adjustment
— Two internal
potentiometers with external knobs.
Accuracy
—
Repeat Accuracy — ±1% ±0.004 sec.
Overall Accuracy — ±2.25% max.
Reset Time
— 25 ms. max. (between
deenergization and reenergization with-
out affecting accuracy.)
Relay Operate Time
— 20 ms.
Relay Release Time
— 15 ms.
Contact Data @ 25°C
Arrangements
— 2 Form C (DPDT).
Rating
— 10A @ 28VDC or 120VAC,
resistive; 1/3 HP @ 120/240VAC.
Expected Mechanical Life
—
10 million operations
Expected Electrical Life
— 500,000
operations, min., at rated resistive load.
Initial Dielectric Strength
—
Between Terminals & Case and Mutually
Isolated Contacts — 1,480VAC.
Operating
<0.1 ms
Voltage
12VDC
1,000V
12VDC
1,000V
1,000V
24VAC/VDC
48 VAC/VDC 1,000V
120 VAC/VDC 3,000V
3,000V
240VAC
<1 ms
240V*
240V*
240V*
480V*
2,500V*
2,500V*
*Minimum source impedance of 100 ohm
Environmental Data
Temperature Range
—
Storage — -40°C to +85°C
Operating — -30°C to +65°C
Input Data @ 25°C
Voltage
— See Ordering Information
section for details.
Power Requirement
— 3W max.
Transient Protection
— Non-repeti-
tive transients of the following magni-
tudes will not cause spurious operation
of affect function and accuracy.
Mechanical Data
Mounting/Termination
—
Quick connect terminals fit either
27E121 or 27E893 (snap-on) socket
(order separately)
Weight
— 5.3 oz. (149g) approximately
Product Facts
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Repeat Cycle timing mode
Dual knobs for user
adjustment of on and off
times
13 timing ranges from 0.1
sec. to 60 min.
10A DPDT output contacts
Exceptional immunity to line
transients and noise
Premium components
enhance reliability
Superior reset time of 24
msec.
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Ordering Information
7
2
A
|
|
|
|
Output
|
Series SRC
|
|
Repeat
|
2 = DPDT
|
|
Relay
|
Cycle
|
|
Timer.
|
|
|
Operating Mode
|
7= Repeat Cycle
|
|
|
|
|
|
|
|
|
|
|
SRC
|
C
|
Timing Range
Off-Time
A =0 .1 to 3 sec.
B = 0.5 to 15 sec.
C = 1 to 30 sec.
D = 2 to 60 sec.
E = 4 to 120 sec.
F = 6 to 180 sec.
G = 10 to 300 sec.
I = 2 to 60 min.
K = 3 to 180 cycles
L = 0.33 to 10 min.
M = 0.5 to 15 min.
N = 1 to 30 min.
P = 0.1 to 10 sec.
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.
C
|
|
|
|
|
|
|
|
|
|
|
|
|
|
A
|
Timing
Adjustment
A = Dual Knob
Adjust
1.97
(50)
.40
(10)
1.97
(50)
3.7 MAX.
(94)
Outline Dimensions
Operating Voltage
(+10%, –15%)
A = 120VAC, 50/60
Hz. / 120VDC
B = 240VAC, 50/60
Hz.
E = 24VAC, 50/60 Hz.
/ 24VDC
F = 48VAC, 50/60 Hz.
/ 48VDC
Q = 12VDC
Timing Range
On-Time
A =0 .1 to 3 sec.
B = 0.5 to 15 sec.
C = 1 to 30 sec.
D = 2 to 60 sec.
E = 4 to 120 sec.
F = 6 to 180 sec.
G = 10 to 300 sec.
I = 2 to 60 min.
K = 3 to 180 cycles
L = 0.33 to 10 min.
M = 0.5 to 15 min.
N = 1 to 30 min.
P = 0.1 to 10 sec.
Authorized distributors are likely to stock the following:
Wiring Diagram (Bottom View)
None at present.
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
12–38
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.