Circuit Protection
UL/CSA Fuses
Current Limiting
ERN Class H Renewable Link Fuse
ERS Class H Renewable Link Fuse
UL/CSA Fuses
General Purpose
15
20
25
30
35
40
3
5
6
7
8
10
12
15
20
25
30
35
ERN/ERS Specifications
“Renewable”
Amp Ratings
ERN 250V
45
100
50
110
60
125
70
150
80
175
90
200
ERS 600V
40
90
45
100
50
125
60
150
70
175
80
200
225
250
300
350
400
450
500
600
—
—
—
—
225
250
300
400
450
500
600
—
—
—
—
—
ERN - 250Vac, ERS - 600Vac
Amp Rating:
3 - 600 Amps
Interrupting Rating:
10,000 RMS Symmetrical Amps
Medium
Voltage Fuses
Benefits:
• Economical, for general purpose use.
• Time-lag design sustains overloads better than other
Class H fuses.
Voltage Rating:
Canadian
Fuses & Holders
3
5
6
7
10
12
Special
Purpose Fuses
Catalog Number ERN (3 - 600A) 250Vac or Less
Catalog Number ERS (3 - 600A) 600Vac or Less
Recommended Fuse Blocks:
Refer to page 124 in this catalog.
Recommended Upgrade:
ECNR/ECSR or LENRK/LESRK.
Fuse Blocks,
Holders & Misc.
Applications:
• Circuits having relatively low levels of available
short-circuit current.
• Industrial and commercial applications having frequent
outages where a renewable type fuse is desired.
• For motor applications, refer to Edison ECNR/ECSR.
Replacment Links for Renewable Type Fuses
Application
Section
Catalog Number ELNE (Amp) 250 Volts for ERN Fuses
Catalog Number ELS (Amp) 600 Volts for ERS Fuses
Amp Ratings
Refer to respective table above.
For additional information, visit www.edisonfuse.com
37
UL/CSA Fuses
Current Limiting
ELNE Class H Renewable Fuse Links
ELS Class H Renewable Fuse Links
Ferrule Design—3 through 60 Amps
100
80
100
80
60
60
40
40
30
30
20
20
10
8
10
8
6
6
4
4
3
3
400A
600A
100A
60A
200A
Amp
Rating
RMS Symmetrical Current in Amps
For additional information, visit www.edisonfuse.com
8,000
10,000
6,000
4,000
3,000
2,000
800
1,000
600
400
.01
20
.01
8,000
10,000
.02
6,000
.02
4,000
.03
3,000
.04
.03
2,000
.06
.04
800
1,000
.06
600
.1
.08
400
.1
.08
300
.2
200
.3
.2
60
.4
.3
80
100
.6
.4
40
.6
30
Blade
Width
F
–
–
3/4
1-1/8
1-5/8
2
–
–
3/4
1-1/8
1-5/8
2
1
.8
300
1
.8
38
Blade
Thickness
E
–
–
1/8
3/16
1/4
1/4
–
–
1/8
3/16
1/4
1/4
2
200
2
80
100
Time in Seconds
200
60
600A
400A
200A
100A
60A
30A
15A
200
20
Time in Seconds
300
30A
Special
Purpose Fuses
Fuse Blocks,
Holders & Misc.
Application
Section
Amp
Rating
300
RMS Symmetrical Current in Amps
Min.
Barrel Length
D
–
–
–
4-1/8
4-5/8
5-3/16
–
–
–
6-1/8
7-1/8
8-3/16
Average Time-Current Curves
Cat. No. ERS (Amp) 600V
Cat. No. ERN (Amp) 250V
Medium
Voltage Fuses
Canadian
Fuses & Holders
ERS
600Vac
Min.
Blade Length
C
–
–
1
1-3/8
1-7/8
2-1/4
–
–
1
1-3/8
1-7/8
2-1/4
40
Amps
3-30
35-60
70-100
110-200
225-400
450-600
3-30
35-60
70-100
110-200
225-400
450-600
ERN
250Vac
Max.
Diameter
B
9/16
13/16
–
–
–
–
13/16
1-1/16
–
–
–
–
Overall
A
2
3
5-7/8
7-1/8
8-5/8
10-3/8
5
5-1/2
7-7/8
9-5/8
11-5/8
13-3/8
15A
Volts and
Catalog Number
Knife Blade—70 through 600 Amps
30
UL/CSA Fuses
General Purpose
Dimensions - inches