SSAC THD4 Series Data Sheet
THD4 SeriesTimer - Delay-on-Make
Connection:
L1 N/L2
The THD4 utilizes solid-state circuitry and a
solid-state relay in one easy to use control. The
metallized mounting surface allows a metal panel
to dissipate heat rather than adding an expensive
heat sink. The solid-state output is rated 6, 10, or 20
amps steady and up to 200 amps inrush. Motors,
heaters and valves can be switched directly,
eliminating the expense of a separate contactor.
The THD4 offers substantial performance,
reliability, and cost advantages for OEM designers.
Operation (Delay-on-Make NC):
Upon application of input voltage, the load is energized
immediately. When the initiate switch closes, the time
delay begins. At the end of the time delay, the load
de-energizes.
Reset: When the initiate switch is reopened, the load is
again energized and the time delay is reset. Removing
input voltage resets the time delay and the output.
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 current capacity up to 20A, 200A
inrush
• Load energized prior to & during timing
• ±0.5% repeat accuracy
• ±1% factory calibration
• Totally solid state & encapsulated
• Fixed or adjustable delays from 0.1s - 1000m
in 6 ranges
Approvals:
Auxiliary Products:
• External adjust potentiometer:
P / N : P1004-9 5
P/N: P1004-95-X
• Female quick connect:
P / N : P 1 0 1 5- 1 3 ( AW G 10 / 1 2 )
P /N : P1 0 15 - 6 4 ( AW G 14 / 1 6 )
• Quick connect to screw adaptor:
P/N: P1015-18
• Versa-knob: P/N: P0700-7
Available Models:
There are no part numbers currently active. Please
call Technical Support with your requirements.
S1 = Low Current Initiate Switch
RT is used when external adjustment is ordered.
Order Table:
THD4
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
Specications
Time Delay
Range ............................0.1s - 1000m in 6 adjustable ranges or xed
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
Form .............................NC
Rating Output Steady State Inrush**
A 6A 60A
B 10A 100A
C 20A 200A
X
Time Delay*
─0 - 0.1 - 10s
─1 - 1 - 100s
─2 - 10 - 1000s
─3 - 0.1 - 10m
─4 - 1 - 100m
─5 - 10 - 1000m
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.
*If xed delay is selected, insert
delay (0.1 - 1000) followed by (S) sec.
or (M) min.
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