DIN-RAIL MOUNT SEMICONDUCTOR FUSING
ULTRASAFE
TM
3.07 in.
(78 mm)
2.32 in.
(59 mm)
1.77 in.
(45 mm)
0.49 in.
(12.4 mm)
0.69 in.
(17.5 mm)
0.20 in.
(5.1 mm)
1.67 in.
(42.4 mm)
3.07 in.
(78 mm)
0.10 in.
(2.5 mm)
1
L
O
C
K
ULTRASAFE
TM
3.71 in.
(94.2 mm)
3.01 in.
(76.5 mm)
1.77 in.
(45 mm)
1.04 in.
(26.4 mm)
4.21 in.
(106.9 mm)
0.15 in.
(3.8 mm)
L
O
C
K
ULTRASAFE
TM
4.06 in.
(103.1 mm)
3.01 in.
(76.5 mm)
1.77 in.
(45 mm)
1.38 in.
(35.1 mm)
4.88 in.
(124 mm)
0.15 in.
(3.8 mm)
Protection for Your Solid
State Power Controller
For protection of solid state power controllers, such as
Watlow's DIN-A-MITE
®
, a semiconductor fuse is
recommended to protect the power controller and ensure
long life. To safeguard your power controllers, Watlow offers
DIN-rail mount fuse holders and semiconductor fuses
in various sizes to accommodate the entire DIN-A-MITE SCR
power controller family and solid state relay products. These
fuse holders feature lockout/tagout and open fuse indication.
Amp I2T Part Dim. A Dim. B Weight Part Weight
Rating (A2Sec) Number mm mm gm Number gm
12
20
25
32
40
50
63
80
100
120 17-8012 10 38.1 9.2 17-5110 53.8
260 17-8020 10 38.1 9.2 17-5110 53.8
390 17-8025 10 38.1 9.2 17-5110 53.8
150 17-8030 14 50.8 21.0 17-5114 119.4
980 17-8040 14 50.8 21.0 17-5114 119.4
1800 17-8050 14 50.8 21.0 17-5114 119.4
2700 17-8063 22 58.0 53.1 17-5122 229.4
5100 17-8080 22 58.0 53.4 17-5122 229.4
10,000 17-8100 22 58.0 53.4 17-5122 229.4
Note: All fuses should be rated at 125 percent of connected load or the next standard fuse size above 125 percent. Due to special cases such
as cooler ambient or lower amperage loads, the connected load should be the determining factor. The semiconductor fuse I2t rating must not
exceed the SCR I2t rating. Semiconductor fuses are classified as supplemental protection for semiconductor. They are not approved for branch
circuit protection.
Fuse Fuse Holder
Fuse and Fuse Holders
17-5122
B
0.39 in. (10 mm) Holder
A
Fuse
DIN-A-MITE®is a registered trademark of Watlow Electric Manufacturing
Company.
©2003, 2009 Watlow Electric Manufacturing Company all rights reserved.
0.87 in. (22 mm) Holder
17-5110
0.55 in. (14 mm) Holder
17-5114
WIN-DFUS-0709