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© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 03/03/17
Enclosed Fuseholders > Panel Mounted
Cartridge Fuse Holders
RoHS
Pb
Product Characteristics
Dimensions
Compatible Fuses For 3AB/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.
NOTE: Ensure that proper re-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 Ye s Clear
344 605 344 805 Neon 240 .3 ma Ye s 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
Recommended
mounting hole
.625
Sq.
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 3AB/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
Datasheet
Samples
Resources
Datasheet
Samples
Resources
344 Series
348 Series
344 Series
348 Series
344 Series
348 Series
Specifications are subject to change without notice. Application testing is strongly recommended.
Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and
test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications.
Read complete Disclaimer Notice at www.littelfuse.com/disclaimer-electronics.