Littelfuse 445_ATO Series User Manual
For ato, Fuses, For mini
For ATO
®
Fuses
In-Line Type
SPECIFICATIONS:
Electrical:
Intended for use with 32 volts Autofuse
®
fuses rated to 20 or
30 amperes depending on wire size and terminal combinations.
Mounting:
Capable of snap-mounting to panel from rear. Fuseholders
interlock for multiple mounting.
Molded Parts:
Black Thermoplastic (UL 94V2).
Terminals:
Brass. Tin-plated. Snap-lock into body.
Ambient Temperature:
– 40°C to +85°C.
Wire:
Stranded with PVC insulation, black #14 AWG for 155 300 Series
and orange #10 AWG for 155 400 Series.
PATENTED
ORDERING INFORMATION:
Catalog Number
Assembled with
Assembled with
Fuse
8" Wire Loop,
8" Wire Loop
Amperage
Unassembled
No Fuse
and Fuse
Rating
155 320U
155 300
155 303A
3
(Terminals designed
(#14 wire/
155 304A
4
for #14 AWG
terminals rated
155 305A
5
stranded wire and
to 20A).
155 37.5A
7.5
marked “14”).
155 310A
10
155 315A
15
155 320A
20
155 430U
155 400
155 425A
25
(Terminals designed
(#10 wire/
155 430A
30
for #10 AWG
terminals rated
stranded wire and
to 30A).
marked “10”).
UNASSEMBLED
For MINI
®
Fuses
In-Line Type — Easy Crimp Fuseholder
SPECIFICATIONS:
Terminals:
Copper Alloy/Tin plated.
Body:
Black Thermoplastic.
Operating Temperature:
– 40°C to +105°C.
Use standard crimping tool and crimp the matted area to secure wire.
(Possible crimp tool - Ideal #30-428 [Toothed Die slot] or equivalent).
ORDERING INFORMATION:
For ATO
®
Fuses
P.C. Board Mount Type
SPECIFICATIONS:
Electrical:
Intended for use with 32 volts ATO
®
fuses rated to 15
amperes.
Molded Parts:
Black Thermoplastic
Terminals:
Copper Alloy, Tin Plated
Ambient Temperature:
– 40°C to +85°C
.
ORDERING INFORMATION:
Catalog Number: 04450715
Catalog
Number
Description
153 002
20A Max. Rating — Terminals will accept #16 – 22 AWG (1.0-
.33 mm
2
) stranded wire (use appropriate wire size based on
fuse usage). For example — Use #16 AWG wire for 20A fuse.
153 003
30A Max. Rating — Terminals will accept #10– 14 AWG (5.0-
2.0 mm
2
) stranded wire (use appropriate wire size based on
fuse usage). For example — Use #10 AWG wire for 30A fuse.
Typical Multiple Mounting
(Fuseholders interlocked)
Recommended Panel Mounting Hole
(.04" / .078" thick panel)
10.16
(.40")
37.08
(1.46")
30.48 (1.20")
24.64
(.970")
19.05 (.75")
10.54 (.415")
10.41 (.410")
27.94 (1.10")
26.92 (1.06")
.254 (.01") R. Max.
Add .400" to width for each additional fuseholder
Tool For Fuse Removal or Replacement; Part No. 097024.
MATTED
(CRIMP) AREA
11.43
(.45")
END VIEW
17.02
(.67")
52.58
(2.07") Max
SIDE VIEW
6.35 (.25")
17.02 (.67")
9.3
(.366")
21.8
(.858")
9.3
(.366")
2.5
(.098")
4.5
(.177") Ref.
9
(.354")
22
(.866")
* Please refer to Fuseology section for information on proper fuseholder de-rating.
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13
FUSEHOLDERS
Fuseholders
Special Types