Model: HED42M020

Circuit Breaker

Special Features:

Calibration for 50c application; high-capacity interruption level; high ic rating; black label

Properties:

Overall Length
6.344 inches
Overall Width
2.000 inches
End Application
P/n 17-92147 rev.3 sheet 90, panel, window htr, pwr. 05-50-1 onboard 420 ft wagb coast guard vessels
Pole Quantity
2
Operating Voltage Type And Rating Per Pole In Volts
480.0 ac all locations and 250.0 dc all locations
Circuit Protection Type
Undervoltage all locations
Trip Release Method
Thermal-magnetic all locations
Frequency In Hertz
50.0 all locations or 60.0 all locations
NSN
5925-01-475-8542
Part Number
HED42M020
Description
Circuit Breaker
CAGE
66842

A device with means other than fuses for automatically opening the circuit in which it is installed when the current varies from the predetermined value for which the device is set. May include provisions for manual operation. At least one set of contacts must be in series with the actuating element(s). A combination of semiconductor and passive devices may be used in lieu of contacts. For automatically operated items in which the actuating (tripping) element and contacts are not in series, see relay (as modified). For items which are operated both manually and automatically but the actuating elements and contact are not in series, see relay-switch. Excludes circuit breaker box and magneto "breaker" assemblies. See also switch (as modified); and controller.

Part HED42M020 NSN 5925-01-475-8542

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
00136
FIIG:
A030A0
Concept No.:
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:
P
PMIC:
A
ESD:
A
ESD:
A
MMAC:
CRITL:
X

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Schedule B and Export
  • Schedule B: 8536200040
  • SITC: 77252
  • End Use: Electric apparatus
  • NAICS: 335313
  • USDA: 1

Freight Class: Automatic circuit breakers, for a voltage not exceeding 1,000 v, nesoi

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