Fuseholder Datasheet

© 2024 Littelfuse, Inc.

Specifications are subject to change without notice.

Revised: GD. 05/01/24

2

342 Military Series

Panel Mount Enclosed Fuseholders for 3AB/3AG/F02/F03 Fuses

Dimensions

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not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at: www.littelfuse.com/disclaimer-electronics.

342021

NUT

NUT

LOCKWASHER

RECOMMENDED

MOUNTING HOLE

RECOMMENDED

MOUNTING HOLE

RECOMMENDED

MOUNTING HOLE

WASHER

(DRIP-PROOF)

0.055

0.45 FLAT

2.094

(WITH FUSE INSTALLED)

1.313 MAX

0.781

0.25

0.438

0.516

PROD HOLE

KNOCKOUT

0.475

0.480

0.502

0.510

342024

340267

General Application/Straight Terminal Product Dimensions

General Application/Right Angle Terminal Product Dimensions

Watertight Product Dimensions

2.16

REF

0.81

REF

0.937

REF

Ø 0.12

Ø 0.110 ± 0.005

Ø 0.690

Ø 0.690

KNOB

BODY

WASHER

LOCKWASHER

0.122 x 0.090

ELONGATED HOLE THRU

0.025 THK SIDE # TERMINAL

1/2-24 UNS-2A THREAD

0.812

0.885

MAX

0.050

MIN

0.570

0.575

BASE

O-RING

GASKET, NON-CONDUCTIVE

KNOB

CAP/CHAIN

RING, SPLIT TAB

GASKET, (RFI)

LOCKWASHER

NUT

BODY

0.09 x 0.13 ELONGATED HOLE

Ø 0.110 ± 0.005

0.060

0.050

0.25 ± 0.005

0.312

1/2-24 THREAD

2.234 MAX

0.172 MAX

Ø 0.875

1.0 MAX

0.45

ACROSS

FLATS

0.625

0.635

0.120

5/8-18 THREAD

LOCK WASHER

JOINT AROUND RIVET &

TERMINAL IS SOLDER

COATED TO PROVIDE A SEAL

0.025

1.78 MAX

WITH FUSE INSERTED

1.0

0.703

0.438

WASHER (DRIP-PROOF)

0.475

0.480

0.502

0.510

0.438

0.250

0.45 FLAT

NUT

0.032

GASKET

“O” RING

342025

Ø 0.140 ± 0.005

0.085 ± 0.005 x 0.120 ± 0.005

ELONGATED HOLE

1/2-24 UNS-2A THREAD

NUT

KNOB

BODY

WASHER

LOCKWASHER

MIL

Specification

Type

Designation

Catalog

Number

Ordering

Number

Type

Electrical

Rating

Terminal

Type

Knob

Type

MIL-PRF19207/11

FHN20G

342025

03420025Z

Drip-proof

20 A 250 V

Right Angle-solder

Knurled

MIL-PRF19207/16

FHN26G2

342024

03420024Z

Drip-proof

30 A 250 V

Straight Angle-solder

Fluted

MIL-PRF19207/16

FHN26W

342021

03420021Z

Water Tight

30 A 250 V

Straight Angle-solder

Fluted

MIL-PRF19207/36

FHN55W

340267

03400267Z Water Tight RFI

30 A 250 V

Straight Angle-solder

Fluted

Ordering Information