SSAC KRD9 Digi-Timer Catalog Page

Dedicated

timers

Motion Detector - Retriggerable Single Shot

KRD9 Digi-Timer
Time Delay Relay

Description

The KRD9 Series microcontroller timing circuit provides excellent repeat accuracy and stability. Cost effective
approach for OEM applications that require small size, isolation, reliability, and long life.

Compact Time Delay Relay
Microcontroller Circuitry, +/-

0.5% Repeat Accuracy

Isolated 10 A SPDT

Output Contacts

Onboard or External
Adjustment or Fixed Time
Delay

Delays from 100 ms ...
1000 m in 6 Ranges

Input Voltages from 12 ...
230 V in 5 Ranges

Approvals:

Accessories

B

External adjust
potentiometer
P/Ns:

P1004-95 (fig A)

A

P1004-95-X (fig B)

Operation- Retriggerable Single Shot

Function Type A (Output Initially De-energized):

Input voltage must be applied prior to and during
timing. When the initiate switch is closed, (momentary
or maintained) the output energizes and the time delay
starts. On completion of the delay, the output de­energizes. The unit will time out if S1 remains in the
open or closed position for the full time delay. Reclosing
the initiate switch resets the time delay and restarts
timing; the output remains energized. The output will
not energize if the initiate switch is closed when input
voltage is applied.
Function Type B (Output Initially Energized): Upon
application of input voltage, the output energizes and
the time delay starts. At the end of the time delay,
the load de-energizes. The unit will time out if S1
remains in the open or closed position for the full time
delay. Closing (re-closing) the initiate switch resets
the time delay and restarts timing; the output remains
energized.
Reset: The time delay and the output are reset when
input voltage is removed.

Connection

Function

Motion Detector/
Retriggerable Single Shot
De-energized

Motion Detector/
Retriggerable Single Shot
Energized

V = Voltage S1 = Initiate Switch
R = Reset TD = Time Delay
t = Incomplete Time Delay
NO = Normally Open NC = Normally Closed

Versa-knob
P/N: P0700-7

Mounting bracket
P/N: P1023-6

Female quick
connect
P/Ns:

P1015-64

(AWG 14/16)

P1015-13 (AWG 10/12)

C = Common, Transfer Contact UTL = Untimed Load

A knob is supplied for adjustable units, or R

terminals 4

T

& 5 for external adjust. See external adjustment vs time
delay chart. The untimed load is optional. Dashed lines
are internal connections. Relay contacts are isolated.

Ordering Table

Quick connect to
screw adaptor
P/N: P1015-18

DIN rail P/Ns:

017322005 (Steel)
C103PM (Al)

←

KRD9

Series

X

Input Function Type

–1 - 12 V DC
–2 - 24 V AC/DC
–4 - 120 V AC
–5 - 110 V DC
–6 - 230 V AC

X

Adjustment

–1 - Fixed
–2 - Onboard
Adjustment
–3 - External
Adjustment

→

DIN rail adaptor

P/N: P1023-20

See accessory pages for
specifications.

5.98 Low Voltage Products & Systems

1TRC 001 009 C0202 ABB Inc. • 888-385-1221 • Technical assistance 800-377-7722 • www.ssac.com

Example P/N:

KRD9421A = 120 V AC; Onboard adjust from 1 to 100 seconds, De-energized Function

KRD9610.5SB = 230 V AC, Fixed at 0.5 seconds, Energized Function

X

Time Delay *

–0 - 0.1 ... 10 s
–1 - 1 ... 100 s
–2 - 10 ... 1000 s
–3 - 0.1 ... 10 m
–4 - 1 ... 100 m
–5 - 10 ... 1000 m

X

–A - De-energized
–B - Energized

* If Fixed Delay is selected,
insert delay [0.1 … 1000]
followed by (S) sec. or
(M) min.

KRD9Gen 08.15.06

Motion Detector - Retriggerable Single Shot

KRD9 Digi-Timer
Time Delay Relay

Technical Data

Time Delay

Type Microcontroller based with watchdog circuitry
Range 0.1 s ... 1000 m in 6 adjustable ranges or fixed
Repeat Accuracy +/-0.5% or 20 ms, whichever is greater
Tolerance (Factory Calibration) ≤ +/-5%
Reset Time ≤ 150 ms
Initiate Time ≤ 40 ms; ≤ 750 operations per minute
Time Delay vs. Temperature & Voltage ≤ +/-5%

Input

Voltage
Tolerance 12 V DC & 24 V DC/AC -15% ... +20%
110 VDC, 120 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 ; Electrical -- 1 x 105

Protection

Circuitry Encapsulated
Isolation Voltage ≥ 1500 V RMS input to output
Insulation Resistance ≥ 100 MΩ
Polarity DC units are reversed 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 -40°C ... +60°C/-40°C ... +85°C
Humidity 95% relative, non-condensing
Weight ≅ 2.6 oz (74 g)

12, 24 or 110 V DC; 24, 120 or 230 V AC

Dedicated

timers

Output Current / Ambient Temp.

External Resistance vs Time Delay

KRD9Gen 08.15.06

Low Voltage Products & Systems 5.99

ABB Inc. • 888-385-1221 • Technical assistance 800-377-7722 • www.ssac.com 1TRC 001 009 C0202

Mechanical View

External Adjust Detail
Replaces Knobs if Ordered

Inches (Millimeters)