Struthers-Dunn
Struthers-Dunn
407 East Smith Street, Suite B
Timmonsville, SC 29161
Telephone: (843)346-4427
Fax: (843)346-4465
Email: info@struthers-dunn.com
Website: www.struthers-dunn.com
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The 311 Series relays are sequencing (stepper) relays built on the industrial 219 style frame. Hold down clip is integral to the relay base. Double pole contacts transfer on energizing of coil or de-energizing. Dual cam movement allows contacts to operate together or separately. Works equally well with application of continous voltage to coil or energy saving impulse. No continuous voltage required for memory. Numerous custom switching arrangements are possible over 8 steps per revolution of the cams.

Additional contact configurations and coil options are available – please use the RFQ/RFI tab above to submit your request.
UL Recognized             RoHS Compliant   
Unit of Measure

Specifications

Series

 N/A 311

Contact Arrangement

 N/A XBX (DPDT) - (2 form C)

Standard Features

 N/A Plug-in with polycarbonate cover

Contact Transfer

 N/A Coil is energized

Optional Features

 N/A Indicator lamp

Coil Voltage

 N/A 240 VAC

Contacts

Contact Configuration

 N/A DPDT

Contact Material

 N/A Silver Alloy

Contact Rating

 N/A 5 A

Contact Rating 125 / 250VAC Resistive

 N/A 5 A

Contact Rating 28VDC Resistive

 N/A 5 A

Contact Resistance, Initial

 N/A 100 milliohms max at 6VDC

Coil

Coils Available

 N/A AC or DC up to 300V

Nominal Coil Power AC

 N/A 4.9 VA

Nominal Coil Power DC

 N/A 1.8 W

Input Voltage Tolerance - AC

 N/A 85% to 110% of nominal

Input Voltage Tolerance - DC

 N/A 80% to 110% of nominal

Drop-out voltge

 N/A 10% of nominal

Duty

 N/A Continuous

Timing

Operate Time (max)

 N/A 35 ms

Release Time (max)

 N/A 35 ms

Dielectric Strength

Across Open Contacts

 N/A 1500 Vrms

Between Mutually Insulated Point

 N/A 1500 Vrms

Insulation Resistance

 N/A 1,000 megohms min at 500VDC

Electrical (full load)

 N/A 100,000

Mechanical (no load)

 N/A 5,000,000

Temperature

Operating

N/A -20 to 60 ºC-4 to 140 ºF

Storage

 N/A -40 TO 105 ºC-40 to 221 ºF

Miscellaneous

Mounting Position

 N/A any

Mating Socket

 N/A 27390D

Enclosure

 N/A Clear Polycarbonate

Weight

 N/A 7.5 oz190 g