THD3 Series Timer - Recycling Flasher

THD3 Series Timer - Recycling Flasher
Timer - Recycling Flasher
THD3 Series
The THD Series combines accurate timing circuitry
with high power, solid-state switching. It can
switch motors, lamps, and heaters directly without
a contactor. The THD3 has equal on and off time
delays . A single RT sets both time delays. You
can reduce labor, component cost, and increase
reliability with these small, easy-to-use, DigiPower timers .
Operation (Recycling Flasher - ON Time First):
Upon application of input voltage, the output 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 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 T1 ON time.
Operation (Recycling Flasher - 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 T1, T2 begins and the
load de-energizes. This cycle repeats until input voltage
is removed.
Reset: Removing input voltage resets the output and the
sequence to T2 OFF time .
Connection:
L1
N/L2
For more information see:
Appendix A, pages 156-164 for function descriptions
and diagrams .
Appendix B, page 165, Figure 4 for dimensional drawing.
External Resistance vs . Time Delay:
Features:
• High load currents up to 20A, 200A inrush
• Fixed or adjustable delays from 0.1s - 1000m
• ±0.5% repeat accuracy
• ±1% factory calibration
• 24, 120, or 230VAC
• Metallized mounting surface for heat
transfer
• Totally solid state & encapsulated
Approvals:
Auxiliary Products:
• External ad just potentiometer:
P/N: P1004-95
P/N: P1004-95-X
• 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
Available Models:
THD3C23A0
THD3C23A1
THD3C23A2
THD3C23A3
THD3C23A4
THD3C23A5
THD3C42A0
THD3C43A1
THD3C43A2
THD3C43A3
THD3C43A4
THD3C43A5
If desired part number is not listed, please call us to
see if it is technically possible to build .
S1 = Optional Low Current Initiate Switch
RT is used when external adjustment is ordered.
Order Table:
THD3
X
Output Rating
─A - 6A
─B - 10A
─C - 20A
X
Input Voltage
─2 - 24VAC
─4 - 120VAC
─6 - 230VAC
X
Adjustment
─1 - Fixed
─2 - External adjust
─3 - Onboard adjust
X
Operating
Sequence
─A - ON time first
─B - OFF time first
Specifications
Time Delay
Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1s - 1000m in 6 adjustable ranges or fixed
Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Single variable resistor changes both the
on & off times equally
Repeat Accuracy . . . . . . . . . . . . . . . . . . . . . . . . ±0.5% or 20ms, whichever is greater
Tolerance (Factory Calibration) . . . . . . . . . . . . ≤ ±1%
Reset Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≤ 150ms
Time Delay vs Temp. & Voltage . . . . . . . . . . . ≤ ±2%
Input
Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24, 120, or 230VAC
Tolerance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20%
AC Line Frequency . . . . . . . . . . . . . . . . . . . . . . 50/60 Hz
Power Consumption . . . . . . . . . . . . . . . . . . . . . ≤ 2VA
Output
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Solid state
Maximum Load Current
Output
Steady State
Inrush**
A
6A
60A
B
10A
100A
C
20A
200A
www.ssac.com • 800-843-8848 • fax: 605-348-5685
X
Time Delay*
─0 - 0.1 - 10s
─1 - 1 - 100s
─2 - 10 - 1000s
─3 - 0.1 - 10m
─4 - 1 - 100m
─5 - 10 - 1000m
*If fixed delay is selected, insert delay (0 .5 - 1000)
followed by (S) secs . or (M) mins .
Minimum Load Current . . . . . . . . . . . . . . . . . . 100mA
Voltage Drop . . . . . . . . . . . . . . . . . . . . . . . . . . . ≅ 2.5V at rated current
OFF State Leakage Current . . . . . . . . . . . . . . . ≅ 5mA @ 230VAC
Protection
Circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Encapsulated
Dielectric Breakdown . . . . . . . . . . . . . . . . . . . . ≥ 2000V RMS terminals to mounting surface
Insulation Resistance . . . . . . . . . . . . . . . . . . . . . ≥ 100 MΩ
Mechanical
Mounting ** . . . . . . . . . . . . . . . . . . . . . . . . . . . . Surface mount with one #10 (M5 x 0.8) screw
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 x 2 x 1.51 in. (50.8 x 50.8 x 38.4 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≅ 3.9 oz (111 g)
**Must be bolted to a metal surface using the included heat sink compound. The maximum
mounting surface temperature is 90°C. Inrush: Non-repetitive for 16ms.
89
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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