Cut Sheet

General Purpose Fuses
General Purpose Fuses
48
w w w . l i t t e l f u s e . c o m
© 2005 Littelfuse
•
POWR-GARD
™
Products Catalog
Plug Fuses
125 VAC
•
Time-Delay
•
1/4 – 30 Amperes
Edison-base Plug fuses
TOO Fuses are dual-element time-delay Edison-base fuses designed for
motor and motor branch circuit protection; also suitable for all general purpose
circuits. Use for replacement purposes only.
Ampere Ratings
3
⁄
10
1
1
⁄
8
2
1
⁄
4
4 7 15
4
⁄
10
1
1
⁄
4
2
1
⁄
2
4
1
⁄
2
8 20
1
⁄
2
1
4
⁄
10
2
8
⁄
10
5 9 25
6
⁄
10
1
6
⁄
10
3 5
6
⁄
10
10 30
8
⁄
10
1
8
⁄
10
3
2
⁄
10
6 12
1 2 3
1
⁄
2
6
1
⁄
4
14
TLO Fuses are medium time-delay Edison-base fuses designed for general
purpose branch circuit protection. See TOO and SOO fuses for motor
protection. Use for replacement purposes only.
Ampere Ratings
15 20 25 30
Type S Plug fuses
SOO Fuses are dual-element time-delay Type S fuses designed for motor and
motor branch circuit protection; also suitable for all general purpose circuits.
Ampere Ratings
1
⁄
4
1 2 3
1
⁄
2
6
1
⁄
4
14
3
⁄
10
1
1
⁄
8
2
1
⁄
4
4 7 15
4
⁄
10
1
1
⁄
4
2
1
⁄
2
4
1
⁄
2
8 20
1
⁄
2
1
4
⁄
10
2
8
⁄
10
5 9 25
6
⁄
10
1
6
⁄
10
3 5
6
⁄
10
10 30
8
⁄
10
1
8
⁄
10
3
2
⁄
10
6 12
SLO Fuses are medium time-delay Type S fuses for general purpose branch
circuit protection.
Ampere Ratings
15 20 25 30
Littelfuse Plug fuses provide overcurrent protection to general purpose
circuits and small motor loads. Edison-base Plug fuses (TOO and TLO
series) feature metal threads similar to incandescent lamp bases. Type S
Plug fuses (SOO and SLO series) utilize a nonmetallic threaded base and
must be used with Type S adapters (SAO series). The National Electrical
Code permits Edison-base Plug fuses to be used for replacement
purposes only. Type S fuses and adapters prevent shunting open fuses
and over-fusing.
SAO
Adapter Rating
Accepts
Fuse Ratings:
Other SOO Fuse
Ratings Which Fit
SAO 1
3
⁄
10
– 1 —
SAO 1
1
⁄
4
1
1
⁄
8
, 1
1
⁄
4
3
⁄
10
– 1
SAO 1
6
⁄
10
1
4
⁄
10
, 1
6
⁄
10
3
⁄
10
– 1
1
⁄
4
SAO 2 1
8
⁄
10
, 2 —
SAO 2
1
⁄
2
2
1
⁄
4
, 2
1
⁄
2
1
8
⁄
10
, 2
SAO 3
2
⁄
10
2
8
⁄
10
, 3
2
⁄
10
1
8
⁄
10
– 2
1
⁄
2
SAO 4 3
1
⁄
2
, 4 —
SAO 5 4
1
⁄
2
, 5 3
1
⁄
2
, 4
SAO 6
1
⁄
4
3
1
⁄
2
, 6
1
⁄
4
3
1
⁄
2
– 5
SAO 8 7, 8 —
SAO 15 7, 8, 9 10, 12, 14, 15 7, 8, 9, 10
SAO 20 20 only —
SAO 30 20, 25, 30 —
Specifications
Voltage Rating: 125 VAC
Interrupting Rating: 10,000 amperes rms symmetrical
Approvals: UL Listed Plug Fuses, Standard UL 248-11
Note: See NEC Article 240-V for additional information on Plug fuse applications.