Model: C-21AA

Electromagnetic Relay

Properties:

Overall Length
3.210 inches
Center To Center Distance Between Mounting Facilities Parallel To Length
1.875 inches single mounting facility
Center To Center Distance Between Mounting Facilities Parallel To Width
1.875 inches single mounting facility
Overall Height
3.000 inches
Overall Width
3.210 inches
Unthreaded Mounting Hole Diameter
0.176 inches single mounting facility and 0.182 inches single mounting facility
End Application
C-5aircraft
Frequency In Hertz
400.0
Winding Quantity
1
Coil Quantity
1
Mounting Facility Type And Quantity
4 unthreaded hole single mounting facility
Mounting Facility Pattern
Rectangular single mounting facility
Nonpile-up Main Contact Arrangement
3 pole, single throw, normally open, double make, momentary action
Auxiliary Contact Maximum Voltage Rating In Volts
115.0 ac and 28.0 dc
Operating Voltage Rating And Type At Specificationified Temp
18.0 volts dc 25 degrees celsius single winding
Main Contact Load Current Rating At Maximum Rated Voltage
25.0 amperes ac resistive load
Main Contact Load Current Rating At Maximum Rated Voltage
25.0 amperes ac motor load
Main Contact Load Current Rating At Maximum Rated Voltage
5.0 amperes ac lamp load
Main Contact Maximum Voltage Rating In Volts
208.0 ac
Auxiliary Contact Load Current Rating At Maximum Rated Voltage
1.0 amperes ac lamp load
Auxiliary Contact Load Current Rating At Maximum Rated Voltage
3.0 amperes ac resistive load
Auxiliary Contact Load Current Rating At Maximum Rated Voltage
3.0 amperes ac inductive load
Terminal Type And Quantity
8 threaded stud energizing element and contacts
NSN
5945-01-493-4161
Part Number
C-21AA
Description
Relay,electromagnetic
CAGE
74063

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 C-21AA NSN 5945-01-493-4161

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:
A
ESD:
B
ESD:
B
MMAC:
UC
CRITL:
X

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: 8536490075
  • SITC: 77254
  • End Use: Electric apparatus
  • NAICS: 335314
  • USDA: 1

Freight Class: Relays, electromechanical, for a voltage exceeding 60 v but not exceeding 1,000 v, nesoi

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