Model: B-312W

Electromagnetic Relay

Properties:

Overall Length
3.660 inches
Center To Center Distance Between Mounting Facilities Parallel To Length
3.100 inches single mounting facility
Center To Center Distance Between Mounting Facilities Parallel To Width
3.100 inches single mounting facility
Overall Height
4.440 inches
Overall Width
3.660 inches
Environmental Protection
Shock resistant and vibration resistant
Unthreaded Mounting Hole Diameter
0.201 inches single mounting facility
Winding Quantity
1
Coil Quantity
1
Winding Dc Resistance Rating
12.0 ohms single winding
Duty Type
Continuous
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
Time Delay
0.03 seconds fixed operate time
Time Delay
0.05 seconds fixed release time
Nonpile-up Auxiliary Contact Arrangement
1 pole, single throw, normally open, double make, momentary action and 1 pole, single throw, normally closed, double break, momentary action
Auxiliary Contact Maximum Voltage Rating In Volts
230.0 ac and 28.0 dc
Operating Voltage Rating And Type At Specificationified Temp
28.0 volts dc 25 degrees celsius single winding
Main Contact Load Current Rating At Maximum Rated Voltage
120.0 amperes ac resistive load
Main Contact Load Current Rating At Maximum Rated Voltage
120.0 amperes dc motor load
Main Contact Maximum Voltage Rating In Volts
440.0 ac
Auxiliary Contact Load Current Rating At Maximum Rated Voltage
25.0 amperes ac resistive load and 25.0 amperes dc resistive load
Terminal Type And Quantity
12 threaded stud all functions
NSN
5945-01-122-9078
Part Number
B-312W
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 B-312W NSN 5945-01-122-9078

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:
ESD:
MMAC:
EH
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.1000lbs
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

End Items End applications NSN 5945-01-122-9078 is a component of

  • An/tpq-36 And An/tpq-37 Firefinder Radar
  • An/tpq 36/37 Mortar And Artillery Radar Locating
  • 012291277
  • Radar Set

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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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