Model: MD81PCRT21B9

Electromagnetic Relay

Properties:

Thread Class
2b single mounting facility
Overall Length
4.000 inches
Center To Center Distance Between Mounting Facilities Parallel To Length
0.750 inches single mounting facility
Overall Height
1.210 inches
Overall Width
1.750 inches
Winding Quantity
2
Coil Quantity
1
Winding Dc Resistance Rating
500.0 ohms second winding
Winding Dc Resistance Rating
25.0 ohms first winding
Duty Type
Continuous
Mounting Facility Type And Quantity
2 threaded hole single mounting facility
Pile-up Main Contact Form Arrangement
2a
Thread Size
0.164 inches single mounting facility
Mounting Facility Pattern
In-line single mounting facility
Operating Current Rating And Type
87.5 milliamperes dc all windings
Operating Voltage Rating And Type At Specificationified Temp
48.0 volts dc 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
50.0 dc
Thread Series Designator
Unc single mounting facility
Terminal Type And Quantity
8 pin all functions
Fsc Application Data (non-core)
Panel, telephone switchboard
NSN
5945-00-332-9120
Part Number
MD81PCRT21B9
Description
Relay,electromagnetic
CAGE
04773

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 MD81PCRT21B9 NSN 5945-00-332-9120

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

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:
00
LVL_A:
Q
LVL_B:
Q

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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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