Model: 57A146B3

Electromagnetic Relay

Properties:

Thread Class
2a single mounting facility
Thread Direction
Right-hand single mounting facility
Overall Length
1.344 inches
Center To Center Distance Between Mounting Facilities Parallel To Width
0.500 inches single mounting facility
Overall Height
1.921 inches
Overall Width
0.953 inches
Case Material
Steel, corrosion resisting
Environmental Protection
Hermetic
Fragility Factor
Moderately rugged
Contact Material
Silver
Winding Quantity
1
Purpose For Which Designed
General
Coil Quantity
1
Winding Dc Resistance Rating
300.0 ohms single winding
Duty Type
Continuous
Arc Quenching Method
Air
Mounting Facility Type And Quantity
3 threaded stud single mounting facility
Storage Type
General purpose warehouse
Cubic Measure
2.446 cubic inches
Thready Qty Per Inch (tpi)
40 single mounting facility
Thread Size
0.112 inches single mounting facility
Mounting Facility Pattern
Triangle single mounting facility
Nonpile-up Main Contact Arrangement
2 pole, double throw, one position momentary
Time Delay
0.01 seconds fixed release time
Time Delay
0.015 seconds fixed operate time
Center To Center Distance Between Mounting Facilities Parallel To The Altitude Of An Isosceles Triangle
1.000 inches single mounting facility
Operating Voltage Rating And Type At Specificationified Temp
27.5 volts dc 25 degrees celsius single winding
Main Contact Load Current Rating At Maximum Rated Voltage
3.0 amperes ac lamp load and 1.5 amperes dc lamp load
Main Contact Load Current Rating At Maximum Rated Voltage
3.0 amperes ac resistive load and 3.0 amperes dc resistive load
Main Contact Maximum Voltage Rating In Volts
115.0 ac and 28.0 dc
Precious Material And Location
Contacts silver
Precious Material
Silver
Thread Series Designator
Unc single mounting facility
Terminal Type And Quantity
8 wire hook all functions
NSN
5945-00-729-1790
Part Number
57A146B3
Description
Relay,electromagnetic
CAGE
10001

A relay which is actuated by the effect of a magnetic field developed by the current in its energizing coil(s). Includes solenoid and armature types. Excludes contactor, magnetic; relay, meter movement; relay, motor driven; relay, reed; relay, resonant reed; relay, rotary; and switch, stepping.

Part 57A146B3 NSN 5945-00-729-1790

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
32512
FIIG:
A03300
Concept No.:
1
App. Key:
A
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
S
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
ZZ
LVL_A:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
061300
UFC:
34410
LTL:
77.5
LCL:
77.5
WCC:
72D
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 8536490050
  • SITC: 77254
  • End Use: Electric apparatus
  • NAICS: 335314
  • USDA: 1

Freight Class: Relays, electromechanical, with contacts rated at less than 10 a, for a voltage exceeding 60 v but not exceeding 1000 v

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