Struthers-Dunn - 48 Series - Contactor Motor Relays

The 48 series is a contactor with a 4 normally open, double make contacts rated up to 3HP. It uses a solenoid type moving core design which generates high contact forces. The coil is encapsulated for complete protection. Screw terminals are standard. Available as an option is a SPDT, 15 Amp, snap switch, auxiliary contact.

Additional contact configurations and coil options are available – please use the RFQ/RFI tab above to submit your request.
Made in U.S.A.

48 Series - Contactor Relays - Dimensional Picture

Unit of Measure

Items	48LXX90-125VDC 48 Series - Contactor Motor Relays	48LXX90-120VAC 48 Series - Contactor Motor Relays
Series	N/A 48
Contact Arrangement	N/A LXX- 4 poles - N.O., double make
Optional Features	N/A 1 Form C Auxiliary contact
Coil Voltage	N/A 125 VDC	N/A 120 VAC
Contact Configuration	N/A 4PST - N.O. - Double Make
Contact Material	N/A Silver Alloy
Contact Rating	N/A 15 A
Contact Rating 120 / 240VAC Resistive	N/A 15 A
Contact Rating 28VDC Resistive	N/A 15 A
Motor 120VAC 1 Phase	N/A 1 hp
Motor 240VAC 3 Phase	N/A 3 hp
Contact Resistance, Initial	N/A 50 milliohms max at 6VDC
Coils Available	N/A AC and DC
Nominal Coil Power AC	N/A 22 VA
Nominal Coil Power DC	N/A 10 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
Operate Time (max)	N/A 60 ms
Release Time (max)	N/A 30 ms
Across Open Contacts	N/A 2500 Vrms
Between Mutually Insulated Point	N/A 2500 Vrms
Insulation Resistance	N/A 1,000 Mohms min. at 500VDC
Operating	N/A -40 to 50 ºC-40 to 122 ºF
Storage	N/A -40 TO 105 ºC-40 to 221 ºF
Electrical (full load)	N/A 100,000
Mechanical (no load)	N/A 5,000,000
Mounting Position	N/A Vertical-Contacts Up
Enclosure	N/A Open
Weight	N/A 26.4 oz748 g