275 Series - Motor Reversing Contactor
2X - 3PST, 15 Amp
GENERAL SPECIFICATIONS (@ 25° C)
Contacts:
Contact Conguration
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
Section 3
275 Series - Motor Reversing Contactor
2X - 3PST, 15 Amp
Outline Dimensions
Dimensions Shown in inches & (millimeters)
Ordering Code 275 KXX 90 -24VAC
Series
275
Contact Arrangement
KXX (2X 3PST – N.O. – double make)
Optional Features
2 Auxiliary contacts each SPDT
(1 per coil) .25” quick connect terminals - CODE 90
4 Auxiliary contacts each SPDT
(2 per coil) .25” quick connect terminals - CODE 91
Rectied coil - CODE V2
Coil Voltage
AC: 12, 24, 120, 240 (Add VAC)
DC: 12, 24, 125 (Add VDC)
AC Coil, 50/60HZ DC Coil
Nominal Resistance Nominal Resistance
voltage ohms ±10% voltage ohms ±10%
 4.80 12 31
110-120 125 24 125
220-240 500 32 210
48 500
Coil Specications
2.88
(73.1)
2.56
(65.0)
1.59
(40.4)
3.40
(86.4)
2.27
(57.7)
Motor Relays
15 - 75 Amp
3/8
www.struthers-dunn.com (843) 346-4427
UP
Recommended
Mounting Position