Struthers-Dunn
407 East Smith Street - Suite B
Timmonsville, SC 29161 US
Phone:
(843) 346-4427 •
Fax:
(843) 346-4465
E-Mail:
info@struthers-dunn.com •
Web site:www.struthers-dunn.com
Item # 388ACPSRX-30-120VAC, 388 Series - True Off Timer Relays
The 388 true off timers are square base, bladed products. Solid state circuitry combined with a magnetic latching relay allow this product to time when no power is
applied. Contacts transfer when power is applied. Timing begins when power is removed. Contacts return to the home position at the end of the timing cycle. No
external control switch is needed to initiate timing. The package on this series is typically socket mounted.
For Additional Configuration please contact the manufacturer.
·
SPECIFICATIONS
·
TIMING
·
CONTACTS
·
COIL
·
DIELECTRIC STRENGTH
·
TEMPERATURE
·
LIFE
EXPECTANCY
·
MISCELLANEOUS
SPECIFICATIONS
Series
388
Type
VAC Operated
Nominal Input Voltage
120 VAC
TIMING
Functions Available
True Off
Timing Range
0.1 to 10 s
Timing Adjustment
Timing Repeatability (Constant voltage and
temperature)
Reset Time maximum
Knob
3.0%
150
Input Pulse Length minimum
50
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CONTACTS
Contact Configuration
2PDT
Contact Material
Silver Alloy
Contact Rating
12 A
Contact Rating 120 / 240VAC Resistive
12 A / 12 A
Contact Rating 28VDC Resistive
12 A
Contact Rating Motor 120VAC
1/3 hp
Contact Rating Motor 240VAC
1/2 hp
Minimum Contact Load
500 mW
Contact Resistance, Initial
100 milliohms max at 6VDC, 1A
COIL
Coils Available
AC and DC
Transient Protection
Yes
Reverse Polarity Protection
Yes
Nominal Coil Power AC
1.5 VA
Nominal Coil Power DC
1W
Input Voltage Tolerance - AC
85% to 110% of nominal
Input Voltage Tolerance - DC
80% to 110% of nominal
Duty
Continuous
DIELECTRIC STRENGTH
Across Open Contacts
500 Vrms
Between Mutually Insulated Point
1500 Vrms
Insulation Resistance
1,000 Mohms min at 500VDC
TEMPERATURE
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