KRDB Series Timer - Delay-on-Break Features:

KRDB Series Timer - Delay-on-Break Features:
Timer - Delay-on-Break
KRDB Series
Features:
The KRDB 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 KRDB Series is a cost effective approach for
OEM applications that require small size, isolation,
reliability, and long life.
Operation (Delay-on-Break):
Input voltage must be applied before and during timing.
Upon closure of the initiate switch, the output relay
energizes. The time delay begins when the initiate switch
is opened. The output remains energized during timing.
At the end of the time delay, the output de-energizes. The
output will energize if the initiate switch is closed when
input voltage is applied.
Reset: Reclosing the initiate switch during timing resets
the time delay. Loss of input voltage resets the time delay
and output .
Connection:
L1
• Compact time delay relay
• Microcontroller circuitry
• ±0.5% repeat accuracy
• Isolated, 10A, SPDT output contacts
• Factory fixed, onboard or external adjust
• Delays from 0.1s - 1000m in 6 ranges
• Input voltages from 12 to 230V in 6 options
• ±5% factory calibration
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:
KRDB1110S
KRDB112.5S
KRDB1120M
KRDB115M
KRDB1160M
KRDB120
KRDB121
KRDB124
KRDB125
V = Voltage
S1 = Initiate Switch
C = Common, Transfer Contact
NO = Normally Open
NC = Normally Closed
UTL = Untimed Load (optional)
If desired part number is not listed, please call us to
see if it is technically possible to build .
A knob is supplied for adjustable
units. The untimed load is optional.
Relay contacts are isolated .
Order Table:
KRDB
X
Input Voltage
─1 - 12VDC
─2 - 24VAC/DC
─3 - 24VDC
─4 - 120VAC
─5 - 110VDC
─6 - 230VAC
KRDB217S
KRDB222
KRDB31120S
KRDB415S
KRDB420
KRDB421
KRDB422
KRDB424
KRDB425
Output Current/Ambient Temperature
X
Adjustment
─1 - Fixed
─2 - Onboard knob
─3 - External adjust
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Repeat Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tolerance (Factory Calibration) . . . . . . . . . . . . . . .
Recycle Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Initiate Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Time Delay vs Temp. & Voltage . . . . . . . . . . . . . .
Input
Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tolerance
12VDC & 24VDC/AC . . . . . . . . . .
110VDC, 120 or 230VAC . . . . . . . . . .
AC Line Frequency / DC Ripple . . . . . . . . . . . . . .
Power Consumption . . . . . . . . . . . . . . . . . . . . . . . .
Output
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Form . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rating (at 40°C) . . . . . . . . . . . . . . . . . . . . . . . . . . . .
46
Microcontroller with watchdog circuitry
0.1s - 1000m in 6 adjustable ranges or fixed
±0.5% or 20ms, whichever is greater
≤ ±5%
≤ 150ms
≤ 40ms
≤ ±5%
12, 24, 110VDC; 24, 120 or 230VAC
-15% - 20%
-20% - 10%
50/60 Hz / ≤ 10%
AC ≤ 2VA; DC ≤ 2W
Isolated relay contacts
SPDT
10A resistive @ 125VAC;
5A resistive @ 230VAC & 28VDC;
1/4 hp @ 125VAC
Max. Switching Voltage . . . . . . . . . . . . . . . . . . . . .
Life (Operations) . . . . . . . . . . . . . . . . . . . . . . . . . . .
Protection
Circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Isolation Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . .
Insulation Resistance . . . . . . . . . . . . . . . . . . . . . . . .
Polarity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mechanical
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
250VAC
Mechanical - 1 x 107; Electrical - 1 x 105
Encapsulated
≥ 1500V RMS input to output
≥ 100 MΩ
DC units are reverse polarity protected
Surface mount with one #10 (M5 x 0.8) screw
2 x 2 x 1.21 in. (50.8 x 50.8 x 30.7 mm)
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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