Model: 25B4439

Circuit Breaker
Description:

Rectangular dimensional envelope body style, 17.688 inches overall length, 4.688 inches overall height, 8.250 inches overall width.

Properties:

Body Style
Rectangular dimensional envelope
Overall Length
17.688 inches
Overall Height
4.688 inches
Overall Width
8.250 inches
Case Material
Plastic
Pole Quantity
3
Mounting Facility Type And Quantity
4 threaded hole
Thready Qty Per Inch (tpi)
16
Maximum Continuous Load Current Rating Per Pole
125.0 amperes ac all locations and 125.0 amperes dc all locations
Operating Voltage Type And Rating Per Pole In Volts
250.0 ac all locations and 250.0 dc all locations
Maximum Interrupting Capacity Current Type And Rating Per Pole In Amps
10000.0 ac all locations and 10000.0 dc all locations
Circuit Protection Type
Overcurrent first location
Circuit Protection Type
Overcurrent second location
Circuit Protection Type
Undervoltage third location
Trip Release Method
Thermal all locations
Trip Release Characteristic
Instantaneous all locations and time delay all locations
Ultimate Trip Rating Of Continuous Current Rating Per Pole In Percent
125.0 all locations
Reset Method
Manual
Main Contact Tripping Mechanism Type
Trip free
Manual Actuator Type And Quantity
1 toggle
Actuator Function
Trip w/separate reset
Actuator Position Designation
At pole two
Internal Trip Release Configuration
Series trip all locations
Thread Size
0.375 inches
Trip Delay Time In Seconds Per Rated Continuous Current
108.000 at 200 pct all locations and 500.000 at 200 pct all locations
Trip Release Ambient Tempurature Rating
25.0 degrees celsius all locations
Frequency In Hertz
60.0 all locations
Thread Series Designator
Unc
Terminal Type And Quantity
6 screw
NSN
5925-00-174-3308
Part Number
25B4439
Description
Circuit Breaker
CAGE
79500

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 25B4439 NSN 5925-00-174-3308

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:
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

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
061300
UFC:
34410
LTL:
77.5
LCL:
--
WCC:
658
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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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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