Littelfuse 348 Series User Manual
Cartridge fuse holders, Enclosed fuseholders > panel mounted
© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/19/13
Enclosed Fuseholders > Panel Mounted
Cartridge Fuse Holders
Product Characteristics
Dimensions
Compatible Fuses
For 3AG Type Fuses
Features
Low profile design
Blown fuse indicator
Electrical
348 Series: Rated at 15 amps for any voltage up to
250 volts.
344 Series: Rated at 15 amps at lamp voltage
shown below.
Dielectric Strength
1500 volts minimum. When designing indicating
type fuseholders into a circuit, consideration should
be given to the resistance of fractional amperage
fuses and the parallel resistance of the indicator
lamp and its resistor.
Mounting
Panel thickness range: .031” through .125”.
Molded Parts
Black thermoplastic body (UL94 V-0). Thermoplastic
bezel, cap and lens (UL94 V-2). See tables below for
colors.
Terminals
Brass. Tin-plated.
Ambient
Temperature
Non-indicating: –40ºC to +85ºC. Indicating: –40ºC
to +60ºC.
Fuse Installation
Insert a fuse into the cap and push the assembly
into the body until it latches. Press in and down to
unlatch for removal.
Agency Approval
Agency
Agency File Number
E14721
007316
NOTE: Ensure that proper de-rating is factored in fuseholder selection.
Ordering Information
Catalog Number
lamp
Type
lamp
Voltage
lamp
Current Resistor
lens
Color
3/16” Q.C.
Terminals
1/4” Q.C.
Terminals
344 601
344 801 Incande-
scent
6
40 ma
No
Amber
344 602
344 802 Incande-
scent
14
80 ma
No
Amber
344 603
344 803 Incande-
scent
28
40 ma
No
Amber
344 604
344 804
Neon
120
1.2 ma
Yes
Clear
344 605
344 805
Neon
240
.3 ma
Yes
Clear
NOTE:
Standard Body and Bezel color is black. Other Bezel colors may be available as special order.
Please contact Littelfuse for additional information and detailed arrangements.
Side
Front
Top
344 Series
.85"
1.95"
(WITH FUSE
ASSEMBLED)
.53"
.4"
.87"
.42"
.054" DIA.
344 800 SERIES
.250" X .032"
344 600 SERIES
.187" X .020"
NEMA Q.C.
.054" DIA.
FUSE
PRESS
.85"
1.95"
(WITH FUSE
ASSEMBLED)
Side
Front
Top
.28"
.4"
.87"
.42"
.054" DIA.
348 800 SERIES
.250" X .032"
348 600 SERIES
.187" X .020"
NEMA Q.C.
.054" DIA.
348 Series
Lens/Cap Bezel Body
Cap Bezel Body
Note: Standard Body and Bezel color is black. Other Bezel colors are available as special order.
348 Series (Low Profile)
344 Series (Indicating)
344/348 Series Blown Fuse Indicating / Low Profile Holders for 3AG Fuses
Catalog Number
bezel Color
Cap Color
3/16” Q.C.
Terminals
1/4” Q.C.
Terminals
348 671
348 871
Black
Red
348 677
348 877
Black
Black
NOTE:
Standard Body and Bezel color is black. Other Bezel and Cap colors may be available as special order.
Please contact Littelfuse for additional information and arrangments.
Additional Information
348 Series
344 Series
348 Series
344 Series
348 Series