Cartridge Fuse Holders
Enclosed Fuseholders > Panel Mounted
345 Series Shock-Safe Panel Mount Enclosed Fuse Holders
Product Characteristics
Compatible
Fuses
RoHS
Pb
For 3AB, 3AG, 5×20mm, or 2AG Fuses
Designed to eliminate the possibility of electrical
shock, as defined in IEC standards 60127-6. The
universal fuseholder body will accept 3AB, 3AG, 5
× 20mm, and 2AG fuse sizes depending on knob
selected. Permits inventory reduction of bodies and
provides knob interchange versatility. Anti-tease feature
eliminates circuit interruption when knob is accidentally
depressed. Five fuseholder types assure design
flexibility. Available with two knob styles — screwdriver
slot or fingergrip. Available in two terminal styles
— dual-purpose for soldering or 3/16” NEMA quick
connect; and ¼” NEMA/DIN quick connect. Quick fuse
size identification is provided with letters on fingergrip
knob and color-coded screwdriver slot knobs.
Insulation Resistance: 10,000 megohm minimum at
500 VDC. Contact Resistance: Less than .005 ohm
average at currents up to 1 ampere.
Threaded styles withstand 15 in.-lb. mounting torque.
Low profile and High profile panel thickness: .032”
min./.310” max. Quick mount panel thickness: .012”
min./.360” max. Rear mount panel thickness: .012”
min./.260” max.
Body Material: Black glass-filled thermoplastic (UL
94V0).
Grey, blue or black glass-filled thermoplastic (UL94 V-0)
Hex Nut Material: Black glass-filled thermoplastic.
Finger-Grip, Fuse Extractor type or Screwdriver Slot,
Fuse Extractor type with plated copper alloy insert.
Plated copper alloy contact clips. Spring loaded, locking
mechanism provides an anti-tease feature and will not
vibrate loose.
Copper alloy. Tin-plated. Three styles available. A .187”
dual purpose terminal accepts wire for soldering or a
Quick-Connect receptacle. .187” terminal for NEMA
Quick-Connect and .250” terminal for NEMA/DIN Quick-
Connect available.
–40ºC to +85ºC.
Threaded style fuseholders are supplied with a
thermoplastic hex nut unassembled. Quick mount style
fuseholders are supplied with a push-on type retaining
nut, black oxide finish, unassembled. A synthetic rubber
“O” ring will be supplied only with the screwdriver
slot knob when the drip-proof version is requested.
To order with a metal internal tooth lockwasher (L)
and/or neoprene panel washer (N) and/or drip-proof
synthetic rubber “O” ring with Neoprene washer (NP)
[Screwdriver slot knob only], add the appropriate suffix
(L, N, or NP) respectively (or in combination) to the
catalog number.
Description
Electrical
Mounting
Molded Parts
Knob Material
Knob
Terminals
Ambient
Temperature
Hardware
* Please refer to Fuseology section for information on proper fuseholder re-rating.
Additional Information
Agency Approval
Agency
Agency File 3AG/AB
Number
E14721
7316
40001642
20A 250V
20A 250V
10A 250V
5×20mm
10A 250V
10A 250V
10A 250V
2AG
10A 250V
10A 250V
—
Datasheet
Resources
Samples
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice. Application testing is strongly recommended.
Revised: 07/27/15
Cartridge Fuse Holders
Enclosed Fuseholders > Panel Mounted
Dimensions
Low Profile Fingergrip Knob
US
special 1/2" thread
.090" x .160"
HOLE
1.59"
special 1/2" thread
Terminal Styles
.070"
HOLE
.60" DIA.
.41"
.055"
HOLE
.187"
.187"
E
Rear Mount Fingergrip Knob
High Profile Screwdriver Slot Knob
.04"x.25"
FUS
E
F
Low Profile Screwdriver Slot Knob
.04"x.25"
FU
S
E
F
´
Quick Mount Screwdriver Slot Knob
.04"x.25"
FUS
E
F
Part Numbering System
EXAMPLE:
(Complete Assembly with Options)
Fuse Size
2
2AG
.177" x .570"
3
3AG
.250" x 1.250"
5
5 x 20mm
.197" x .787"
To Order Body Including Nut(s) Only:
Terminal Style
3/16” Dual Purpose
3/16” Dual Purpose
3/16” NEMA QC
3/16”NEMA QC
¼” NEMA/DIN QC
¼”NEMA/DIN QC
***Low Profile Body will accept either Fingergrip or Screwdriver Slot Knob.
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 07/27/15
FUS
E
F
FUS
E
F
.250"
1/4" NEMA/DIN
QUICK CONNECT
US
.65" DIA.
.50" MIN.
1.50" MAX.
special 1/2" thread
3/16" DUAL
PURPOSE
SOLDER/QUICK
CONNECT
Suggested Mounting Holes
.475"
.480"
.500"
.505"
.460"
.465"
3/16" NEMA
QUICK CONNECT
US
US
US
E
Bottom Terminal
Right Angle Straight
C
A
A
B
C
.187" QC .53" .30" .020"
.250" QC .59" .36" .032"
B
.60" DIA.
.40"
1.35"
special 1/2" thread
E
E
.60" DIA.
.16"
1.59"
"Push-On" Type Retaining Nut
for Quick Mount Fuseholder
E
Plastic Hex Nut with Flange
.19"
.65"
DIA.
.63"
.60" DIA.
.91" DIA.
.16"
1.59"
SPECIAL
1/2" THREAD
.558"
HEX.
Series Number
345 3 LS 7 L N P
Style
LF
Low Profile Body
Black Fingergrip Knob
RF
Rear Mount Body
Black Fingergrip Knob
HS
High Profile Body
Screwdriver Slot Knob
LS
Low Profile Body
Screwdriver Slot Knob
QS
Quick Mount Body
Screwdriver Slot Knob
Screwdriver Slot Knob
2AG — Blue Knob
3AG — Grey Knob
5 x 20mm — Black Knob
Terminals
1
3/16" (Rt. Angle)
Dual Purpose Solder/QC
2
3/16" (Straight)
Dual Purpose Solder/QC
3
3/16" (Rt. Angle)
NEMA QC
4
3/16" (Straight)
NEMA QC
7
1/4" (Rt. Angle)
NEMA/DIN QC
8
1/4" (Straight)
NEMA/DIN QC
Options*
L
Lockwasher
N
Neoprene Washer
P
Drip-Proof “O” Ring**
with Neoprene Washer
**Options
(L, N, P) can be ordered
individually or in combination.
**Screwdriver slot knob only.
To Order Knob Only:
Fuse Size
2AG
3AG
5 × 20mm
Fingergrip
Knob
3452LF1-020
3453LF1-020
3455LF1-020
Screwdriver Slot
Knob
3452LS1-020
3453LS1-020
3455LS1-020
Quick Mount Body
Part Number
3453QS1-010
3453QS2-010
3453QS3-010
3453QS4-010
3453QS7-010
3453QS8-010
Bottom Terminal
(Rt. Angle)
(Straight)
(Rt. Angle)
(Straight)
(Rt. Angle)
(Straight)
Low Profile Body
Part Number***
3453LF1-010
3453LF2-010
3453LF3-010
3453LF4-010
3453LF7-010
3453LF8-010
High Profile Body
Part Number
3453HS1-010
3453HS2-010
3453HS3-010
3453HS4-010
3453HS7-010
3453HS8-010
Rear Mount Body
Part Number
3453RF1-010
3453RF2-010
3453RF3-010
3453RF4-010
3453RF7-010
3453RF8-010
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