KRDS Series Timer - Single Shot Features:

KRDS Series Timer - Single Shot Features:
Timer - Single Shot
KRDS Series
Features:
The KRDS Series is a compact time delay relay
measuring only 2 in. (50.8 mm) square. Its
microcontroller timing circuit provides excellent
repeat accuracy and stability . Encapsulation
protects against shock, vibration, and humidity.
The KRDS Series is a cost effective approach for
OEM applications that require small size, isolation,
reliability, and long life.
Operation (Single Shot):
Input voltage must be applied before and during timing.
Upon momentary or maintained closure of the initiate
switch, the output relay energizes for a measured interval
of time. At the end of the delay, the output de-energizes.
Opening or reclosing the initiate switch during timing has
no affect on the time delay. The output will energize if the
initiate switch is closed when input voltage is applied.
Reset: Reset occurs when the time delay is complete and
the initiate switch is opened. Loss of input voltage resets
the time delay and output.
Connection:
L1
• Compact time delay relay
• ±0.5% repeat accuracy
• Isolated, 10A, SPDT output contacts
• Factory fixed, onboard or external adjust
• Delays from 0.1s - 1000m in 6 ranges
• ±5% factory calibration
• Input voltages from 12 to 230V in 5 options
Approvals:
Auxiliary Products:
• External ad just potentiometer:
P/N: P1004-95
P/N: P1004-95-X
• Mounting bracket: P/N: P1023-6
• Female quick connect:
P/N: P1015-13 (AWG 10/12)
P/N: P1015-64 (AWG 14/16)
• Quick connect t o s crew ad aptor:
P/N: P1015-18
• Versa-knob: P/N: P0700-7
• DIN rail: P/N: C103PM (Al)
• DIN rail adaptor: P/N: P1023-20
For more information see:
Appendix A, pages 156-164 for function descriptions
and diagrams .
Appendix B, page 165, Figure 1 for dimensional drawing.
N/L2
External Resistance vs . Time Delay:
Available Models:
KRDS120
KRDS221
KRDS225
If desired part number is not listed, please call us to
see if it is technically possible to build .
V = Voltage
S1 = Initiate Switch
C = Common, Transfer Contact
NO = Normally Open
NC = Normally Closed
UTL = Untimed Load
RT is used when external adjustment is ordered.
A knob is supplied for adjustable units. The
untimed load is optional . Relay contacts are
isolated .
Order Table:
KRDS
X
Input Voltage
─1 - 12VDC
─2 - 24VAC/DC
─4 - 120VAC
─5 - 110VDC
─6 - 230VAC
X
Adjustment
─1 - Fixed
─2 - Onboard knob
─3 - External adjust
KRDS424
KRDS430
Output Current/Ambient Temperature:
X
Time Delay*
─0 - 0.1 - 10s
─1 - 1 - 100s
─2 - 10 - 1000s
─3 - 0.1 - 10m
─4 - 1 - 100m
*If fixed delay is selected, insert delay (0 .1
─5 - 10 - 1000m - 1000) followed by (S) sec, or (M) min .
Specifications
Time Delay
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Microcontroller with watchdog circuitry
Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.1s - 1000m in 6 adjustable ranges or fixed
Repeat Accuracy . . . . . . . . . . . . . . . . . . . . . . . .±0.5% or 20ms, whichever is greater
Tolerance (Factory Calibration) . . . . . . . . . . . .≤ ±5%
Reset Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .≤ 150ms
Initiate Time . . . . . . . . . . . . . . . . . . . . . . . . . . . .≤ 40ms
Time Delay vs Temp. & Voltage . . . . . . . . . . .≤ ±5%
Input
Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12, 24 or 110VDC; 24, 120 or 230VAC
Tolerance
12VDC & 24VDC/AC . . . . . . .-15% - 20%
110VDC, 120VAC or 230VAC . . . . . . .-20%- 10%
AC Line Frequency / DC Ripple . . . . . . . . . . .50/60 Hz / ≤ 10%
Power Consumption . . . . . . . . . . . . . . . . . . . . .AC ≤ 2VA; DC ≤ 2W
Output
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Isolated relay contacts
Form . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SPDT
60
Rating (at 40°C) . . . . . . . . . . . . . . . . . . . . . . . . .10A resistive @ 125VAC;
5A resistive @ 230VAC & 28VDC;
1/4 hp @ 125VAC
Life (Operations) . . . . . . . . . . . . . . . . . . . . . . . .Mechanical - 1 x 107; Electrical - 1 x 105
Protection
Circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Encapsulated
Isolation Voltage . . . . . . . . . . . . . . . . . . . . . . . .≥ 1500V RMS input to output
Insulation Resistance . . . . . . . . . . . . . . . . . . . . .≥ 100 MΩ
Polarity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .DC units are reverse polarity protected
Mechanical
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Surface mount with one #10 (M5 x 0.8) screw
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 x 2 x 1.21 in. (50.8 x 50.8 x 30.7 mm)
Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.25 in. (6.35 mm) male quick connect terminals
Environmental . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating / Storage Temperature . . . . . . . . .-40° to 60°C/-40° to 85°C
Humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .95% relative, non-condensing
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .≅ 2.6 oz (74 g)
www.ssac.com • 800-843-8848 • fax: 605-348-5685
Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com
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