Model: F21B250V400A

Cartridge Fuse

Properties:

Body Style
Axial terminal type
Terminal Material
Copper or copper alloy
Overall Length
8.620 inches
Mounting Slot Width
0.406 inches
Body Length
Between 4.625 inches and 4.813 inches
Overall Diameter
2.410 inches
Case Material
Fiber
Continuous Current Rating In Amps
400.000
Terminal Width
1.625 inches
Terminal Thickness
0.250 inches
Maximum Voltage Rating In Volts
250.0 ac
Circuit Over-current Interruption Type
Time delay
Interruption Indicator Method
Opaque body
Features Provided
Nonrenewable fusible element
Circuit Over-current Interruption Delay Time In Seconds
10.0 200 pct of current rating
Short-circuit/interrupt Current Rating In Amps
200000.0
Test Data Document
81348-w-f-1814 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
Specification Data
81348-w-f-1814/60 government specification
NSN
5920-01-252-0614
Part Number
F21B250V400A
Description
Fuse,cartridge
CAGE
81349

A fuse in which the element is inclosed in a cylindrical body. The element may be renewable. The terminals may be of varying types. It may contain a visual indication that the fusible element is severed, and may also provide an audible alarm through auxiliary circuitry. For noncylindrical items, see fuse, inclosed link.

Part F21B250V400A NSN 5920-01-252-0614

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
00248
FIIG:
A01700
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:
P
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:
1.9000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
M
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
062060
UFC:
34740
LTL:
RATING VARIABLE
LCL:
--
WCC:
72D
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 8536100040
  • SITC: 77251
  • End Use: Electric apparatus
  • NAICS: 335313
  • USDA: 1

Freight Class: Fuses, except glass cartridge, for a voltage not exceeding 1,000 v

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