Model: 21-042A

Electromagnetic Relay

Properties:

Overall Length
5.250 inches
Center To Center Distance Between Mounting Facilities Parallel To Length
3.875 inches single mounting facility
Center To Center Distance Between Mounting Facilities Parallel To Width
3.500 inches single mounting facility
Overall Height
4.500 inches
Overall Width
4.760 inches
Environmental Protection
Humidity resistant
Unthreaded Mounting Hole Diameter
0.196 inches single mounting facility
Frequency In Hertz
Between 60.0 and 375.0
Winding Quantity
2
Coil Quantity
2
Duty Type
Continuous
Mounting Facility Type And Quantity
4 unthreaded hole single mounting facility
Features Provided
Polarized
Mounting Facility Pattern
Rectangular single mounting facility
Nonpile-up Main Contact Arrangement
1 pole, double throw, one position momentary
Operating Voltage Rating And Type At Specificationified Temp
115.0 volts ac 25 degrees celsius all windings
Main Contact Load Current Rating At Maximum Rated Voltage
3.0 amperes dc resistive load
Main Contact Maximum Voltage Rating In Volts
28.0 dc
Terminal Type And Quantity
7 pin all functions
NSN
5945-00-346-3642
Part Number
21-042A
Description
Relay,electromagnetic
CAGE
18741

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 21-042A NSN 5945-00-346-3642

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:
U
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
061300
UFC:
34410
LTL:
77.5
LCL:
--
WCC:
658
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 8536410020
  • SITC: 77254
  • End Use: Electric apparatus
  • NAICS: 335314
  • USDA: 1

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

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