275 Series - Motor Reversing Contactor
2X - 3PST, 15 Amp
GENERAL SPECIFICATIONS (@ 25° C)
Contacts:
Contact Conguration
Contact Material
Contact Rating
120 / 240VAC Resistive
Motor 120VAC 1 Phase
Motor 240VAC 1 Phase
Motor 240VAC 2-3 Phase
Motor 480 / 600VAC 2-3 Phase
Contact Resistance, Initial
Coil:
Coils Available
Nominal Coil Power
Input Voltage Tolerance - AC
Input Voltage Tolerance - DC
Drop-out voltge
Duty
Timing:
Operate Time (max)
Release Time (max)
Dielectric Strength:
Across Open Contacts
Between Mutally Insulated Points
Insulation Resistance
Temperature:
Operating
Storage
Life Expectancy:
Electrical (full load operations)
Mechanical (no load operations)
Miscellaneous:
Mounting Position
Enclosure
Weight
3PST-NO Double Make per side
Silver alloy
15 Amp / 10 Amp
1Hp
1.5Hp
3Hp
3Hp
100milliohms max @ 6VDC
AC and DC
17VA 4.9W
85% to 110% of nominal
80% to 110% of nominal
10% of nominal
Continuous
50mS
30mS
2500 VRMS
2500 VRMS
1000 Megohms @ 500 VRMS
-34 to 74°C (-30 to 165°F)
-40 to 105°C (-40 to 221°F)
100,000
5,000,000
Vertical , Contacts Up
Semi-Enclosed
16.0oz (406 grams)
The 275 series is a 2 coil, compact motor reversing contactor which nds extensive applications in
the industrial door operator industry, the hoist industry and electronic wheel balancers, to name a
few. The 275 series has Quick connect coil terminals extending out the back (opposite the contact
terminals), mechanically interlocked armatures is a standard feature.
File No. E13224
3/7 www.struthers-dunn.com (843) 346-4427
275 Wire Diagram
6
23
1
45
7 8 9