Cartridge Fuse Holders
Enclosed Fuseholders > Panel Mounted
RoHS Pb
345 Series Shock-Safe Panel Mount Enclosed Fuse Holders
Product Characteristics
Compatible For 3AB, 3AG, 520mm, or 2AG Fuses
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
Description
depressed. Five fuseholder types assure design
efl xibility. 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 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
Electrical 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
Mounting 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
Molded Parts
94V0).
Grey, blue or black glass-filled thermoplastic (UL94 V-0)
Knob Material
Hex Nut Material: Black glass-filled thermoplastic.
Finger-Grip, Fuse Extractor type or Screwdriver Slot,
Fuse Extractor type with plated copper alloy insert.
Knob 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
Terminals Quick-Connect receptacle. .187 terminal for NEMA
Quick-Connect and .250 terminal for NEMA/DIN Quick-
Connect available.
Ambient
40C to +85C.
Temperature
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.
Hardware
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. Accesories can be order by separately.
* Please refer to Fuseology section for information on proper fuseholder re-rating.
Agency Approval
Additional Information
Agency Agency File 3AG/AB 520mm 2AG
Number
E14721 20A 250V 20A 250V 10A 250V
7316 20A 250V 20A 250V 10A 250V
Datasheet Resources Samples
40001642 10A 250V 10A 250V
2018 Littelfuse, Inc.
Specifications are subject to change without notice. Application testing is strongly recommended.
Revised: 02/05/18 U
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Cartridge Fuse Holders
Enclosed Fuseholders > Panel Mounted
Dimensions
Terminal Styles
Low Prole Fingergrip Knob
special 1/2" thread
.070"
.090" x .160"
.055"
HOLE
.60" DIA. HOLE
HOLE
.41" 1.59"
.187" .187" .250"
Rear Mount Fingergrip Knob
special 1/2" thread
3/16" DUAL 3/16" NEMA 1/4" NEMA/DIN
PURPOSE QUICK CONNECT QUICK CONNECT
SOLDER/QUICK
.65" DIA.
CONNECT
Bottom Terminal
.50" MIN. 1.50" MAX.
Suggested Mounting Holes Straight
Right Angle
High Prole Screwdriver Slot Knob
special 1/2" thread .475" .460" B
.04"x.25"
.480" .465"
C
.60" DIA. .500" A
.505"
1.35"
.40" AB C
Low Prole Screwdriver Slot Knob
.187" QC .53" .30" .020"
special 1/2" thread
.04"x.25"
.59" .36" .032"
.250" QC
.60" DIA.Push-O Type Retaining Nut
Plastic Hex Nut with Flange
for Quick Mount Fuseholder
.65"
.16" 1.59"
DIA.
.19"
Quick Mount Screwdriver Slot Knob
.04"x.25" .63"
.60" DIA.
.91" DIA.
SPECIAL .558"
.16" 1.59" 1/2" THREAD HEX.
Ordering Part Numbering System to order complete fuse holder (body and knob)
Example 03453LS7HXLNP - A 345 Series fuse holder for 3AG fuses with low profile body and a Screwdriver Slot knob, with
1/4" (Rt. Angle) Nema/Din QC terminals.
0 345 3 LS 7 H X L N P
Series Name
Fuse Size Style Terminals Packing Accessory*
2 LF 1 H L
2AG Low Profile Body 3/16" (Rt. Angle)
For 100 Pieces (Bulk) Lockwasher
.177" x .570" Black Fingergrip Knob Dual Purpose Solder/QC
N
3 RF 2
3AG Rear Mount Body 3/16" (Straight)
Neoprene Washer
.250" x 1.250" Black Fingergrip Knob Dual Purpose Solder/QC
P
5 HS 3
Drip-Proof Ring**
5 x 20mm High Profile Body 3/16" (Rt. Angle)
with Neoprene Washer
.197" x .787" Screwdriver Slot Knob NEMA QC
LS 4 *Optional (L,N,P) can be ordered
individually or in combination
Low Profile Body 3/16" (Straight)
**Screwdriver slot knob only
Screwdriver Slot Knob NEMA QC
QS 7
1/4" (Rt. Angle)
Quick Mount Body
NEMA/DIN QC
Screwdriver Slot Knob
8
Screwdriver Slot Knob
1/4" (Rt. Angle)
2AG - Blue Knob
NEMA/DIN QC
3AG - Grey Knob
5 x 20mm - Black Knob
Note - If accessory is needed, add the as filler on the ordering part number
2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 02/05/18
U
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