Model: 157B2178PIECE4

Electromagnetic Relay

Properties:

Overall Length
5.600 inches
Center To Center Distance Between Mounting Facilities Parallel To Length
4.000 inches single mounting facility
Center To Center Distance Between Mounting Facilities Parallel To Width
4.000 inches single mounting facility
Overall Height
5.160 inches
Overall Width
5.400 inches
Environmental Protection
Dustproof
Unthreaded Mounting Hole Diameter
0.219 inches single mounting facility
Winding Quantity
1
Coil Quantity
1
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, momentary action
Nonpile-up Auxiliary Contact Arrangement
1 pole, single throw, normally open, momentary action and 1 pole, single throw, normally closed, momentary action
Auxiliary Contact Maximum Voltage Rating In Volts
115.0 ac
Operating Voltage Rating And Type At Specificationified Temp
440.0 volts ac 25 degrees celsius single winding
Main Contact Load Current Rating At Maximum Rated Voltage
27.0 amperes ac resistive load
Main Contact Maximum Voltage Rating In Volts
480.0 ac
Auxiliary Contact Load Current Rating At Maximum Rated Voltage
10.0 amperes ac resistive load
Terminal Type And Quantity
12 screw all functions
NSN
5945-01-165-5194
Part Number
157B2178PIECE4
Description
Relay,electromagnetic
CAGE
02989

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 157B2178PIECE4 NSN 5945-01-165-5194

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:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
5.5000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
M
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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