Recycling (Flasher)
HRD3 Power-Time
Time Delay Relay
Description
The HRD3 Series combines an electromechanical relay output with microcontroller timing circuitry. It offers 12
to 230 V operation in five ranges and factory fixed, external, or onboard adjustable time delays with a repeat
accuracy of +/-0.5%. The output contact rating allows for direct operation of heavy loads such as compressors,
pumps, blower motors, heaters, etc. This series is ideal for OEM applications where cost is a factor.
Operation (ON Time First)
Upon application of input voltage, the output relay
energizes and the T1 ON time begins. At the end of
the ON time, the output de-energizes and the T2 OFF
time begins. At the end of the OFF time, the output
relay energizes and the cycle repeats as long as input
voltage is applied.
Reset:
Removing input voltage resets the output and
time delays, and returns the sequence to the first
delay.
Function
Recycling (ON First)
Equal ON and OFF Delays
30 A SPDT N.O. Output
Contacts
12 ... 230 V Operation in
5 Ranges
Encapsulated Circuitry
Delays from 100 ms ...100 m
in 5 Ranges
+/-0.5% Repeat Accuracy
Fixed, External, or Onboard
Adjustment
Recycling (OFF First)
Operation (OFF Time First)
Upon application of input voltage, the T2, OFF time
begins. At the end of the OFF time, the T1, ON time
begins and the load energizes. At the end of the ON
time the load de-energizes, and the cycle repeats
until input voltage is removed.
Reset:
Removing input voltage resets the output and
the sequence to the OFF time.
V = Voltage
R = Reset
L= Load
T1 = ON Time T2 = OFF Time
T1
≅
T2
Approvals:
Connection
Accessories
B
A
External adjust
potentiometer
P/Ns:
P1004-95
(fig A)
P1004-95-X
(fig B)
Mounting bracket
P/N:
P1023-6
NC
NO
C
Female quick
connect P/Ns:
P1015-64
(AWG 14/16)
P1015-13
(AWG 10/12)
Quick connect to
screw adaptor
P/N:
P1015-18
Versa-knob
P/N:
P0700-7
C = Common, Transfer Contact
NO = Normally Open L = Load
NOTE: A knob, or terminals 4 & 5 are only included
on adjustable units. R
T
is used when external
adjustment is ordered. Relay contacts are not
isolated. Dashed lines are internal connections.
Ordering Table
HRD3
Series
X
Input
–1 -
12 V DC
–2 -
24 V AC
–3 -
24 V DC
–4 -
120 V AC
–6 -
230 V AC
X
Adjustment
–1 -
Fixed
–2 -
Onboard
Knob
–3 -
External
Adjust
X
Time Tolerance
–A
- +/-1%
Blank - +/-5%
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
X
Operating
Sequence
–A - ON
Time First
–B - OFF
Time First
DIN rail P/Ns:
017322005
(Steel)
C103PM
(Al)
DIN rail adaptor
P/N:
P1023-20
→
See accessory pages for
specifications.
5.170
Example P/N:
HRD3421A
Fixed –
HRD341A0.5SB
Low Voltage Products & Systems
HRD3Gen
* If Fixed Delay is selected, insert
delay [0.1
…
1000]
followed by (S)
sec. or [0.1
...
100]
(M) min.
10.03.05
←
Recycling (Flasher)
HRD3 Power-Time
Time Delay Relay
Technical Data
Time Delay
Type
Range
Repeat Accuracy
Tolerance (Factory Calibration)
Reset Time
Time Delay vs. Temperature & Voltage
Input
Voltage
Tolerance
12 V DC & 24 V DC
24 ... 230 V AC
Line Frequency
Power Consumption
Output
Type
Form
Ratings:
General Purpose
125/240 V AC
Resistive
125/240 V AC
28 V DC
Motor Load
125 V AC
240 V AC
Life
Protection
Surge
Circuitry
Dielectric Breakdown
Insulation Resistance
Polarity
Mechanical
Mounting
Package
Termination
Environmental
Operating / Storage Temperature
Humidity
Weight
Microcontroller circuitry
100 ms ... 100 m in 5 adjustable ranges or fixed
+/-0.5 % or 20 ms, whichever is greater
+/-1%, +/-5%
≤
150 ms
+/-2%
12 or 24 V DC; 24, 120, or 230 V AC
-15% ... +20%
-20% ... +10%
50 ... 60 Hz
AC
≤
4 VA; DC
≤
2 W
Electromechanical relay
SPDT, non-isolated
SPDT-N.O.
SPDT-N.C.
30 A
15 A
30 A
15 A
20 A
10 A
1 hp*
1/4 hp**
2 hp**
1 hp**
Mechanical -- 1 x 10
6
; Electrical -- 1 x 10
5
, *3 x 10
4
, **6,000
IEEE C62.41-1991 Level A
Encapsulated
≥
2000 V RMS terminals to mounting surface
≥
100 MΩ
DC units are reverse polarity protected
Surface mount with one #10 (M5 x 0.8) screw
3 x 2 x 1.5 in. (76.7 x 51.3 x 38.1 mm)
0.25 in. (6.35 mm) male quick connect terminals
-40°C ... +60°C / -40°C ... +85°C
95% relative, non-condensing
≅
3.9 oz (111 g)
External Resistance vs Time Delay
Mechanical View
Onboard Adjust Detail Replaces
Terminals if Ordered
Inches (Millimeters)
HRD3Gen
10.03.05
Low Voltage Products & Systems
5.171
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