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 112 series relays are capable of sensing extremely low current flow. They are frequently used to detect ground faults or in applications where applied voltage varies significantly. DC versions can sense currents as low as 0.61mA and tolerate voltages up to 10X minimum. AC versions can sense currents as low as 0.74mA and can tolerate voltages up to 5X minimum. Single pole DC coil versions use as little as 12mW of power while double pole versions can be as low as 60mW. Single pole AC coil version use as little as 160mVA while double pole versions can be as low as 800mVA. Pick-up or drop-out current can be fine tuned by end user via knurled thumbwheel after loosening locknut. Remove all power to make adjustments.

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

Specifications

Series

 N/A 112

Contact Arrangement

 N/A XAX (SPDT) - (1 form C)

Construction

 N/A Plug-in / Front removable cover

Coil Current

 N/A 0.61mA DC

Contacts

Contact Configuration

 N/A SPDT, DPDT

Contact Material

 N/A Silver

Contact Rating

 N/A 2 A

Contact Rating 120 / 240VAC Resistive

 N/A 2 A

Contact Rating 28VDC Resistive

 N/A 2 A

Contact Resistance, Initial

 N/A 100 milliohms max at 6VDC

Coil

Coils Available

 N/A AC and DC

Minimum Coil Power-Single Pole

 N/A 10 mW

Minimum Coil Power-Double Pole

 N/A 60 mW

Duty

 N/A Continuous

Timing

Operate Time (max)

 N/A 20 ms

Release Time (max)

 N/A 20 ms

Dielectric Strength

Across Open Contacts

 N/A 500 Vrms

Between Mutually Insulated Point

 N/A 1500 Vrms

Insulation Resistance

 N/A 1,000 Mohms min at 500VDC

Temperature

Operating

N/A -20 to 60 ºC-4 to 140 ºF

Storage

 N/A -40 TO 105 ºC-40 to 221 ºF

Life Expectancy

Electrical (full load)

 N/A 100,000

Mechanical (no load)

 N/A 500,000

Miscellaneous

Mounting Position

 N/A any

Mating Socket

 N/A 27390D (P or PGF versions)

Weight

 N/A 7.5 oz241 g