A2Y/A6Y
Form 600
Form 600 fuses
Mersen Form 600 fuses are the original current-limiting fuses, pre-dating all the
standards. Their 500V DC rating (through 600A) is a useful feature for special fusing
applications. Form 600 fuses provide a high degree of current limitation in AC and DC
applications. Types 1 and 3 are dimensionally interchangeable with Class H and K
fuses. Types 4 and 5 have unique rejection dimensions and are not interchangeable.
Catalog Numbers (amps)
250V
A2Y1-1
A2Y2-1
A2Y3-1
A2Y5-1
A2Y6-1
A2Y8-1
A2Y10-1
A2Y15-1
A2Y20-1
A2Y25-1
A2Y30-1
A2Y35-1
A2Y40-1
A2Y45-1
A2Y50-1
A2Y60-1
A2Y70-3
A2Y70-4
A2Y70-5
A2Y80-3
A2Y80-4
A2Y90-3
A2Y90-4
A2Y100-3
A2Y100-4
A2Y125-3
A2Y125-4
-
A2Y150-3
A2Y150-4
-
A2Y175-3
A2Y175-4
-
A2Y200-3
A2Y200-4
-
-
-
-
A2Y250-3
A2Y250-4
-
A2Y300-3
A2Y300-4
-
A2Y350-3
A2Y350-4
A2Y400-3
A2Y400-4
-
A2Y450-3
A2Y450-4
-
A2Y500-3
A2Y500-4
A2Y500-5
A2Y600-3
A2Y600-4
A2Y600-5
-
-
-
-
-
-
-
A6Y1-1
A6Y2-1
A6Y3-1
A6Y5-1
A6Y6-1
A6Y8-1
A6Y10-1
A6Y15-1
A6Y20-1
A6Y25-1
A6Y30-1
A6Y35-1
A6Y40-1
A6Y45-1
A6Y50-1
A6Y60-1
A6Y70-3
A6Y70-4
-
A6Y80-3
A6Y80-4
A6Y90-3
-
A6Y100-3
A6Y100-4
A6Y125-3
A6Y125-4
A6Y125-5
A6Y150-3
A6Y150-4
A6Y150-5
A6Y175-3
A6Y175-4
A6Y175-5
600V
A6Y200-3
A6Y200-4
A6Y200-5
A6Y225-3
A6Y225-4
A6Y225-5
A6Y250-3
A6Y250-4
A6Y250-5
A6Y300-3
A6Y300-4
A6Y300-5
A6Y350-3
A6Y350-4
A6Y400-3
A6Y400-4
A6Y400-5
A6Y450-3
A6Y450-4
A6Y450-5
A6Y500-3
A6Y500-4
A6Y500-5
A6Y600-3
A6Y600-4
A6Y600-5
A6Y650-4
A6Y800-4
A6Y800-5
A6Y1000-4
A6Y1000-5
A6Y1200-4
A6Y1200-5
Type 1,
1-60 Amperes Class K
Dimensions
Ampere
Rating
A
2
3
5
5-1/2
A2Y - 1-60A
1-30
35-60
1-30
35-60
9/16
13/16
13/16
1-1/16
Inches
B
Ratings:
A2Y
Volts
Amps
IR
A6Y
Volts
Amps
: 250VAC
: 500VDC
: 1 to 600A
: 200kA I.R.AC
: 100kA I.R. DC
: 600VAC
: 500VDC
: 1 to 8A (500VAC)
: 10 to 1200A (600VAC)
: 1 to 600A (500VDC)
: 200kA I.R. AC
: 100kA I.R. DC
A6Y - 1-60A
IR
Approvals:
•
UL Recognized Component
File E60314
•
DC Tested to UL248-1 (1-600A)
G13
G
A2Y/A6Y
Form 600
Type 3, 70-600 Amps, Class K Dimensions
Ampere Rating
Inches
A
5-7/8
7-1/8
8-5/8
10-3/8
7-7/8
9-5/8
11-5/8
13-3/8
B
1
1-1/2
2
2-1/2
1
1-1/2
2
2-1/2
C
1/8
3/16
1/4
1/4
1/8
3/16
1/4
1/4
D
23/32
1-1/8
1-5/8
2
23/32
1-1/8
1-5/8
2
E
1-5/8
2-3/16
2-15/16
3-13/16
2-5/8
3-7/16
4-7/16
5-5/16
J
2-21/32
2-25/32
2-25/32
2-25/32
2-21/32
2-25/32
2-25/32
2-25/32
250 VAC/500 VDC - A2Y (Amp) - 3
70-100
125-200
225-400
450-600
70-100
110-200
225-400
450-600
600 VAC/500 VDC - A6Y (Amp) - 3
Type 3 70-600A
Type 4, 70-600 Amps – Dimensions
Ampere
Rating
70-100
125-200
225-400
450-600
70-100
125-200
225-400
450-600
A
5-7/8
7-1/8
8-5/8
10-3/8
7-7/8
9-5/8
11-5/8
13-3/8
B
1
1-1/2
2
2-1/2
1
1-1/2
2
2-1/2
C
1/8
3/16
1/4
1/4
1/8
3/16
1/4
1/4
D
23/32
1-1/8
1-5/8
2
23/32
1-1/8
1-5/8
2
250 VAC/500 VDC - A2Y (Amp) - 4
1-5/8
2-3/16
2-15/16
3-13/16
2-5/8
3-7/16
4-7/16
5-5/16
4-7/8
5-3/4
6-3/4
8-1/8
6-7/8
8-1/4
9-3/4
11-1/8
13/64
17/64
21/64
25/64
13/64
17/64
21/64
25/64
2-21/32
2-25/32
2-25/32
2-25/32
2-21/32
2-25/32
2-25/32
2-25/32
1/2
11/16
15/16
1-1/8
1/2
11/16
15/16
1-1/8
Inches
E
F
H
J
P
600 VAC/500 VDC - A6Y (Amp) - 4
Type 4 70-600A
Type 4, 650-1200 Amps – Dimensions
Ampere
Rating
650-1200
A
10-1/2
B
3
D
2
E
3-3/8
600 VAC only - A6Y (Amp) - 4
7-7/8
3-3/4
1-5/16
5/8
Inches
F
J
K
Q
Type 4 650-1200A
Type 5, 125-600 Amps – Dimensions
Ampere
Rating
125-200
225-400
450-600
A
10-3/4
13-1/4
B
1-1/2
2
C
3/16
1/4
1/4
D
1-1/8
1-5/8
2
E
3-7/16
4-7/16
5-5/16
600 VAC/500 VDC - A6Y (Amp) - 5
8-1/4
9-3/4
11-1/8
3/4
7/8
1
17/64
21/64
25/64
2-25/32
2-25/32
2-25/32
11/16
15/16
1
Inches
F
G
H
J
P
15-3/16 2-1/2
Type 5 125-600A
Type 5, 650-1200 Amps – Dimensions
Ampere
Rating
650-1200
A
12-1/8
B
3
D
2
E
3-3/8
600 VAC only - A6Y (Amp) - 5
7-7/8
3-3/4
1-5/16
5/8
Inches
F
J
K
Q
Type 5 650-1200A
G14