Model: MR-31-U20

Electromagnetic Relay

Properties:

Overall Length
2.840 inches
Center To Center Distance Between Mounting Facilities Parallel To Length
1.438 inches single mounting facility
Overall Height
2.380 inches
Overall Width
1.880 inches
Unthreaded Mounting Hole Diameter
0.156 inches single mounting facility
Fragility Factor
Moderately rugged
Frequency In Hertz
60.0
Winding Quantity
1
Purpose For Which Designed
General
Coil Quantity
1
Winding Dc Resistance Rating
705.0 ohms single winding
Duty Type
Continuous
Arc Quenching Method
Air
Mounting Facility Type And Quantity
2 unthreaded hole single mounting facility
Storage Type
General purpose warehouse
Cubic Measure
12.707 cubic inches
Mounting Facility Pattern
In-line single mounting facility
Nonpile-up Main Contact Arrangement
3 pole, single throw, normally open, momentary action and 1 pole, single throw, normally closed, momentary action
Operating Current Rating And Type
40.0 milliamperes ac single winding
Operating Voltage Rating And Type At Specificationified Temp
110.0 volts ac 25 degrees celsius single winding
Main Contact Load Current Rating At Maximum Rated Voltage
10.0 amperes ac resistive load and 10.0 amperes dc resistive load
Main Contact Maximum Voltage Rating In Volts
120.0 ac and 28.0 dc
Terminal Type And Quantity
10 pin all functions
NSN
5945-00-803-8738
Part Number
MR-31-U20
Description
Relay,electromagnetic
CAGE
04009

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 MR-31-U20 NSN 5945-00-803-8738

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:
2.9 X 1.9 X 2.4
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: 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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