28C3021
Relays and Solenoids
RELAY,ELECTROMAGNETIC
28C3021
Northrop Grumman Systems Corporation
RELAY,ELECTROMAGNETIC
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Technical Characteristics
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Main Contact Load Current Rating At Maximum Rated Voltage
3.0 amperes ac resistive load and 3.0 amperes dc resistive load
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Fragility Factor
moderately rugged
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Nominal Thread Size
0.138 inches single mounting facility
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Overall Height
1.562 inches maximum
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Precious Material And Location
contacts silver
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Overall Width
1.031 inches maximum
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Cubic Measure
2.365 cubic inches
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Mounting Facility Pattern
rectangular single mounting facility
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Precious Material
silver
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Storage Type
general purpose warehouse
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Operating Voltage Rating And Type At Specified Temp
26.5 volts dc 25 deg celsius single winding
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Environmental Protection
hermetic
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Arc Quenching Method
air
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Thread Quantity Per Inch
32 single mounting facility
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Winding Quantity
1
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Thread Direction
right-hand single mounting facility
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Winding Dc Resistance Rating
300.0 ohms nominal single winding
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Time Delay
0.01 seconds maximum fixed release time
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Main Contact Maximum Voltage Rating In Volts
115.0 ac and 28.0 dc
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Mounting Facility Type And Quantity
4 threaded hole single mounting facility
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Nonpile-Up Main Contact Arrangement
4 pole, double throw, one position momentary
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Purpose For Which Designed
general
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Contact Material
silver
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Coil Quantity
1
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Overall Length
1.469 inches maximum
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Center To Center Distance Between Mounting Facilities Parallel To Width
0.375 inches nominal single mounting facility
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Case Material
steel, corrosion resisting
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Terminal Type And Quantity
14 tab, solder lug all functions
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Center To Center Distance Between Mounting Facilities Parallel To Length
0.438 inches nominal single mounting facility
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Thread Series Designator
unc single mounting facility
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Thread Class
2b single mounting facility
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Time Delay
0.025 seconds maximum fixed operate time
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Duty Type
continuous
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Main Contact Load Current Rating At Maximum Rated Voltage
3.0 amperes ac inductive load and 1.5 amperes dc inductive load