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 # 388ACPSOX-159-120VAC, 388 Series - Time Delay Relays
The 388 timers are square base, bladed versions of time delay relays. On delay, off delay and interval functions are all available with either AC or DC inputs. On delay
and interval products can have up to three poles. Off delays have two poles. The timing circuit is oscillator based. Fixed time and externally adjustable versions. Both
socket and flange mount versions are available.
For Additional Configuration please contact the manufacturer.
·
SPECIFICATIONS
·
TIMING
·
CONTACTS
·
COIL
·
DIELECTRIC STRENGTH
·
TEMPERATURE
·
LIFE
EXPECTANCY
·
MISCELLANEOUS
SPECIFICATIONS
Series
388
Type
On delay plug-in
Nominal Input Voltage
120 VAC
TIMING
Functions Available
On-delay
Timing Range
0.3 to 30 s
External Resistor
N/A ohms/s
Timing Adjustment
Timing Repeatability (Constant voltage and
temperature)
Knob
0.1%
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Reset Time maximum
150mS
Input Pulse Length minimum
50mS
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
2.75 VA
Nominal Coil Power DC
2W
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
1000 Vrms
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Between Mutually Insulated Point
1500 Vrms
Insulation Resistance
1,000 megohms min at 500VDC
TEMPERATURE
-20 to 55 ºC
-4 to 131 ºF
Operating
Storage
-40 to 85 ºC
-40 to 185 ºF
LIFE EXPECTANCY
Electrical (full load)
100,000
Mechanical (no load)
5,000,000
MISCELLANEOUS
Mounting Position
Any
Mating Socket
SK-SQB11-DS
Enclosure
Opaque Polycarbonate
Weight
4.0 oz
113 g
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