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 # 237XBXPLM-020-115-125VDC, 236TD /237 Series - Time Delay Relays
Rugged, industrial time delay versions of the popular 219 series. On delay, off delay and interval timing is available. Contacts can be configured up to four pole double
throw or six pole single throw. Blow out magnets can be added to increase DC switching capability. Time ranges are adjustable over a 1:100 range. Locking shaft
potentiometer and integral hold down clip are standard. A large option list makes this product easily customized for special applications.
Nuclear versions available
For Additional Configuration please contact the manufacturer.
·
SPECIFICATIONS
·
TIMING
·
CONTACTS
·
COIL
·
DIELECTRIC STRENGTH
·
TEMPERATURE
·
LIFE
EXPECTANCY
·
MISCELLANEOUS
SPECIFICATIONS
Series
237
Contact Arrangement
XBX (DPDT) - (2 form C)
Mounting Options
Plug-in
Timing Range
0.2 - 20 s
Adjustment Options
Locking shaft potentiometer
Operating Voltage
115-125 VDC
TIMING
Functions Available
On-delay, Off-delay, Interval
Time Range
Up to 7 hours
Timing Adjustment
Locking shaft potentiometer
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Timing Repeatability (Constant voltage and
temperature)
Reset Time maximum
3%
150
Input Pulse Length minimum
50
CONTACTS
Contact Configuration
DPDT, DPDT+NO
Contact Material
Silver Alloy Gold Diffused
Contact Rating
10 A
Contact Rating 120 / 240VAC Resistive
10 A / 5 A
Contact Rating 28VDC Resistive
10 A
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
5 VA
Nominal Coil Power DC
2.5 W
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
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Insulation Resistance
1,000 Mohms min at 500VDC
TEMPERATURE
-20 to 70 ºC
-4 to 158 ºF
Operating
Storage
-40 to 105 ºC
-40 to 221 ºF
LIFE EXPECTANCY
Electrical (full load)
100,000
Mechanical (no load)
10,000,000
MISCELLANEOUS
Mounting Position
Any
Mating Socket
12 pin = 27390D
14 pin = 33377D
Accessories
Hold down clip integral to relay
Enclosure
Clear Polycarbonate
Weight
8.6 oz
244 g
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