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SLC Class G Fuses
480 VAC, 600 VAC • Medium Time-Delay • 1/2 – 60 Amperes
Amperes
Refer to
Fig. No.
Dimensions in Inches (mm in parentheses)
A
B
C
D
1 2 – 15
1
1 5 16 (33.3)
3 8 (9.5)
9 32 (7.1)
13 32 (10.3)
20
1
1 13 32 (35.7)
3 8 (9.5)
9 32 (7.1)
13 32 (10.3)
25, 30
1
1 5 8 (41.3)
3 8 (9.5)
9 32 (7.1)
13 32 (10.3)
35 – 60
1
2 1 4 (57.2)
3 8 (9.5)
1 2 (12.7)
13 32 (10.3)
A
C
D
B
Fig. 1
1000
800
600
400
300
200
The compact design of Littelfuse SLC series Class G fuses offers a cost
effective, space saving alternative to other fuse classes. The unique
design of the SLC series provides superior time-delay characteristics
over competitive products, which can increase system reliability and
minimize downtime. Class G fuses meet NEC requirements for branch
circuit protection and vary in length to prevent over-fusing when used
with the appropriate Class G fuse block.
100
80
60
40
30
20
10
8
6
4
3
2
Features/Benefits
1
.8
.6
.4
.3
.2
• Current-limiting – Reduces damage to equipment caused by heating
and magnetic effects of short-circuit currents.
• 100,000 A.I.R. – Reliable interruption of all overcurrents up to
100,000 amperes.
• Time-Delay – Allows fuses to be sized closer to actual equipment
requirements and may reduce downtime caused by power surges.
.1
.08
.06
.04
.03
.02
.01
Note: For applications where greater time-delay is required, or where
ratings exceed 60 amperes, consider selecting Littelfuse time-delay
Class RK1, RK5, J or CC fuses.
CURRENT IN AMPERES
Specifications
Ampere Ratings
Voltage Ratings: 600 Volts AC ( 1 2 – 20A)
480 Volts AC (25 – 60A)
Interrupting Ratings: 100,000 a­peres r­s sy­­etrical
Ampere Range:
1 2
3
6
15
30
45
1
4
8
20
35
50
2
5
10
25
40
60
1 2 – 60 a­peres
Exa­ple part nu­ber (series & a­perage): SLC 10
Approvals:
Standard 248-5, Class G
Recommended Fuse Blocks
UL Listed (File No: E81895)
CSA Certified (File No: LR29862)
QPL: Federal Specification No: WF-1814
LG300 series; L300G30 (for 25 and 30 a­p fuses)
Refer to the Blocks & Holders section of this catalog for additional infor­ation.
44
© 2005 Littelfuse POWR-GARD Products Catalog