TAC1 Series Timer - Delay-on-Make Features
Timer - Delay-on-Make
TAC1 Series
The TAC1 Series was designed to delay the
operation of a compressor relay. It eliminates the
possibility of relay chatter due to half-wave failure
of the output. It connects in series with the load
relay coil and provides a delay-on-make time delay
each time input voltage is applied. It can be used
for random start, anti-short cycling, sequencing,
and many other applications. It is an excellent
choice for all air conditioning and refrigeration
equipment .
Operation (Delay-on-Make):
Upon application of input voltage, the time delay begins.
The output is de-energized before and during the time
delay. At the end of the time delay, the output energizes
and remains energized until input voltage is removed.
Reset: Removing input voltage resets the time delay
and output .
Connection:
L1
For more information see:
Appendix A, pages 156-164 for function descriptions
and diagrams .
Appendix B, page 165, Figure 1 for dimensional drawing.
N/L2
Features
• UL approved for air conditioning &
refrigeration equipment
• Fixed or adjustable delays from 0.05 - 600s
• 24 to 230VAC
• Fail-safe design eliminates contactor chatter
problems
• ±2% repeat accuracy
Approvals:
Auxiliary Products:
• External ad just potentiometer:
P/N: P1004-XX
P/N: P1004-XX-X
• Female quick connect:
P/N: P1015-64 (AWG 14/16)
• Mounting bracket: P/N: P1023-6
• Quick connect t o s crew ad aptor:
P/N: P1015-18
• Versa-knob: P/N: P0700-7
• DIN rail: P/N: C103PM (Al)
• DIN rail adaptor: P/N: P1023-20
• Plug-on adjustment module:
P/N: VTP(X)(X)
Time Delay
1 - 0.05-3s
2 - 0.5-60s
3 - 2-180s
4 - 5-600s
Load may be connected to terminals 3 or 1.
RT is used when external adjustment is ordered.
VTP P/N
VTP4B
VTP4F
VTP4J
VTP5N
Selection Table for VTP Plug-on
Adjustment Accessory.
Available Models:
TAC1413
TAC1223
TAC14164
TAC1411
TAC141150
TAC1412
If desired part number is not listed, please call us to
see if it is technically possible to build .
Order Table:
TAC1
X
Input Voltage
─2 - 24VAC
─4 - 120VAC
─6 - 230VAC
X
Adjustment
─1 - Fixed
─2 - External adjust
X
Time Delay*
─1 - 0.05 - 3s
─2 - 0.5 - 60s
─3 - 2 - 180s *If fixed delay is selected, insert
─4 - 5 - 600s delay (0 .05 - 600) in seconds .
Specifications
Time Delay
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Analog circuitry
Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.05 - 600s in 4 adjustable ranges or fixed
Repeat Accuracy . . . . . . . . . . . . . . . . . . . . . . . . ±2%
Tolerance (Factory Calibration) . . . . . . . . . . . . ±20%
Recycle Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≤ 20ms after timing, during timing - 0.1%
of time delay or 75ms, whichever is greater
Time Delay vs Temp. & Voltage . . . . . . . . . . . ≤ ±10%
Input
Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24, 120, or 230VAC
Tolerance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20%
AC Line Frequency . . . . . . . . . . . . . . . . . . . . . . 50/60 Hz
Output
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Solid state
Form . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . NO, open during timing
Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5A steady state, 10A inrush at 60°C
96
Voltage Drop . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 & 230VAC: ≅ 4.2V @ 0.5A
24VAC: ≅ 2.5V @ 0.5A
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 1.21 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° to 80°C / -40° to 85°C
Humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95% relative, non-condensing
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≅ 2.4 oz (68 g)
www.ssac.com • 800-843-8848 • fax: 605-348-5685
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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