SSAC KRDI Digi-Timer Catalog Page
Dedicated
= Undefined time
timers
Interval
(Impulse ON)
KRDI Digi-Timer
Time Delay Relay
Description
The KRDI Series is a compact time delay relay measuring only 2 in. (50.8 mm) square. Its solid state timing
circuit provides excellent repeat accuracy and stability. Encapsulation protects against shock, vibration, and
humidity. The KRDI Series is a cost effective approach for OEM applications that require small size, isolation,
reliability, and long life.
Compact Time Delay Relay
Full 10 A SPDT Output
Contacts
Onboard or External Adjust
or Fixed Delay
Delays from 100 ms...100 m
in 5 Ranges
+/-0.5% Repeat Accuracy
+/-5% Factory Calibration
Input Voltages from 12 ...
230 V in 5 Ranges
Approvals:
Accessories
B
External adjust
potentiometer
A
P/Ns:
P1004-95 (fig A)
P1004-95-X (fig B)
Versa-knob
P/N: P0700-7
Operation
Upon application of input voltage, the time delay
begins. The output relay energizes during the time
delay. At the end of the time delay, the output deenergizes and remains de-energized until input voltage
is removed.
Reset: Removing input voltage resets the time delay
and the output.
Connection
Function
Interval
V = Voltage R = Reset TD = Time Delay
NO = Normally Open NC = Normally Closed
Mounting bracket
P/N: P1023-6
V = Voltage C = Common, Transfer Contact
NO = Normally Open NC = Normally Closed
A knob is supplied for adjustable units, or RT
terminals 4 & 5 for external adjust. See external
Female quick
connect
P/Ns:
P1015-64
P1015-13 (AWG 10/12)
Quick connect to
screw adaptor
P/N: P1015-18
DIN rail P/Ns:
017322005 (Steel)
C103PM (Al)
→
DIN rail adaptor
P/N:
P1023-20
See accessory pages for
specifications.
(AWG 14/16)
←
adjustment vs time delay chart. Relay contacts are
isolated. Dashed lines are internal connections.
Ordering Table
KRDI
Series
Example P/N:
X
Input
–1 - 12 V DC
–2 - 24 V AC/DC
–4 - 120 V AC
–5 - 110 V DC
–6 - 230 V AC
X X
Adjustment
–1 - Fixed
–2 - Onboard
Adjustment
–3 - External
Adjustment
KRDI421 = 120 V AC; Onboard adjust from 1 to 100 seconds
KRDI610.5S = 230 V AC; Fixed at 0.5 seconds
Time Delay *
–0 - 0.1 ... 10 s
–1 - 1 ... 100 s
–2 - 10 ... 1000 s
–3 - 0.1 ... 10 m
–4 - 1 ... 100 m
* If Fixed Delay is selected, insert delay
[0.1 … 1000] followed by (S) sec. or
[0.1 ... 100] (M) min.
5.106 Low Voltage Products & Systems
1TRC 001 009 C0202 ABB Inc. • 888-385-1221 • Technical assistance 800-377-7722 • www.ssac.com
KRDIGen 08.15.06
Interval
(Impulse ON)
KRDI Digi-Timer
Time Delay Relay
Technical Data
Time Delay
Range 0.1 s ... 100 m in 5 adjustable ranges or fixed
Repeat Accuracy +/-0.5% or 20 ms, whichever is greater
Tolerance (Factory Calibration) ≤ +/- 5%
Reset Time ≤ 150 ms
Time Delay vs. Temperature & Voltage ≤ +/-5%
Input
Voltage 12, 24 or 110 V DC; 24, 120 or 230 V AC
Tolerance 12 V DC & 24 V DC/AC -15% ... +20%
110 V DC, 120 V AC or 230 V AC -20% ... +10%
AC Line Frequency/DC Ripple 50 ... 60 Hz / ≤ 10%
Power Consumption AC ≤ 2 VA; DC ≤ 2 W
Output
Type Isolated relay contacts
Form Single pole double throw (SPDT)
Rating (at 40°C) 10 A resistive at 125 V AC
5 A resistive at 230 V AC & 28 V DC; 1/4 hp at 125 V AC
Max. Switching Voltage 250 V AC
Life (Operations) Mechanical -- 1 x 107;
Protection
Circuitry Encapsulated
Isolation Voltage ≥ 1500 V 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
Package 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 -20°C ... +60°C / -40°C ... +85°C
Humidity 95% relative, non-condensing
Weight ≅ 2.6 oz (74 g)
Electrical -- 1 x 105
Dedicated
timers
Output Current/Ambient Temp.
External Resistance vs Time Delay
KRDIGen 08.15.06
Mechanical View
External Adjust Detail
Replaces Knobs if Ordered
Inches (Millimeters)
Low Voltage Products & Systems 5.107
ABB Inc. • 888-385-1221 • Technical assistance 800-377-7722 • www.ssac.com 1TRC 001 009 C0202
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