DFJ Class J high speed fuses
Catalog symbol:DFJ -_
Description:
The Bussmann™ series DFJ drive fuse is a high speed, current-limiting fuse that provides maximum protection for AC and DC drives and controllers and meet NEC® branch circuit protection requirements. The drive fuse has the lowest I2t of any branch circuit fuse to protect power semiconductor devices that utilize diodes, GTOs, SCRs and SSRs.
Specifications:
Ratings
Volts
-
600Vac (or less)
-
450Vdc (or less, 15-600A)
Amps :1-600A
IR:
-
200kA RMS Sym.
-
100kA DC.
Agency information
-
UL® Listed Standard 248-8, Class J, Guide JDDZ, File E4273
-
CSA® Certified, C22.2 No. 248.8, Class 1422-02, File 53787
-
RoHS compliant
-
CE
Features:
-
Easily coordinated with existing and new variable speed drives and electric controllers.
-
Standard Class J dimensions allow using readily available fuse blocks, holders and switches.
-
Has the lowest let-through energy of any branch circuit overcurrent protective device
Typical applications
-
Protection of AC and DC drives
-
Equipment using power semiconductor devices
Catalog Numbers (Amps)
Catalog Numbers (Amps) |
Catalog Numbers (Amps) |
Catalog Numbers (Amps) |
Catalog Numbers (Amps) |
DFJ-1 |
DFJ-15 |
DFJ-60 |
DFJ-200 |
DFJ-2 |
DFJ-17-1/2 |
DFJ-70 |
DFJ-225 |
DFJ-3 |
DFJ-20 |
DFJ-80 |
DFJ-250 |
DFJ-4 |
DFJ-25 |
DFJ-90 |
DFJ-300 |
DFJ-5 |
DFJ-30 |
DFJ-100 |
DFJ-350 |
DFJ-6 |
DFJ-35 |
DFJ-110 |
DFJ-400 |
DFJ-8 |
DFJ-40 |
DFJ-125 |
DFJ-450 |
DFJ-10 |
DFJ-45 |
DFJ-150 |
DFJ-500 |
DFJ-12 |
DFJ-50 |
DFJ-175 |
DFJ-600 |
Carton Quantity
Amp Rating |
Carton Qty. |
1-60 |
10 |
70-200 |
5 |
225-600 |
1 |
Electrical characteristics:
Catalog number |
Amps |
I 2 t (A2 Sec) @ 600Vac/100kA |
Watts loss |
|
Pre-arc |
Clearing |
|||
DFJ-15 |
15 |
4 |
110 |
4.1 |
DFJ-20 |
20 |
8 |
365 |
4 |
DFJ-25 |
25 |
12 |
610 |
4.9 |
DFJ-30 |
30 |
20 |
1000 |
5.5 |
DFJ-35 |
35 |
55 |
1100 |
6.8 |
DFJ-40 |
40 |
90 |
1900 |
8.6 |
DFJ-50 |
50 |
140 |
2800 |
8.7 |
DFJ-60 |
60 |
290 |
6000 |
8.5 |
DFJ-70 |
70 |
450 |
3100 |
12 |
DFJ-80 |
80 |
650 |
4600 |
13 |
DFJ-90 |
90 |
1010 |
7200 |
13 |
DFJ-100 |
100 |
1460 |
10500 |
13 |
DFJ-110 |
110 |
1710 |
9500 |
17 |
DFJ-125 |
125 |
3580 |
20000 |
15 |
DFJ-150 |
150 |
5080 |
28000 |
19 |
DFJ-175 |
175 |
6310 |
35000 |
23 |
DFJ-200 |
200 |
9850 |
54500 |
24 |
DFJ-225 |
225 |
11420 |
51000 |
29 |
DFJ-250 |
250 |
17000 |
74500 |
30 |
DFJ-300 |
300 |
23500 |
103000 |
36 |
DFJ-350 |
350 |
38800 |
170000 |
39 |
DFJ-400 |
400 |
62200 |
272000 |
40 |
DFJ-450 |
450 |
44600 |
270000 |
45 |
DFJ-500 |
500 |
79500 |
480000 |
52 |
DFJ-600 |
600 |
138000 |
830000 |
57 |
Recommended fuse blocks and holders:
Fuse amps |
1-Pole |
2-Pole |
3-Pole |
“Pyramid” blocks (data sheet No. 1108) |
|||
Up to 30 |
- |
- |
JP60030-3_ |
CH holders (data sheet No. 2144) |
|||
Up to 30 |
CH30J1_ |
CH30J2_ |
CH30J3_ |
35-60 |
CH60J1_ |
CH60J2_ |
CH60J3_ |
Safety J™ holders (data sheet No. 1152) |
|||
Up to 30 |
JT60030_ |
- |
- |
35-60 |
JT60060_ |
- |
- |
JM modular fuse blocks (data sheet No. 3192 and 10289) |
|||
Up to 30 |
JM60030-1_ |
JM60030-2_ |
JM60030-3_ |
35-60 |
JM60060-1CR |
JM60060-2CR |
JM60060-3CR |
70-100 |
JM60100-1CR |
JM60100-2CR |
JM60100-3CR |
110-200 |
JM60200-1CR |
JM60200-2CR |
JM60200-3CR |
225-400 |
JM60400-1CR |
JM60400-2CR |
JM60400-3CR |
450-600 |
JM60600-1CR |
JM60600-2CR |
JM60100-3CR |
JM power distribution fuse blocks (data sheet No. 10192) |
|||
Up to 30 |
JM60030-1MW_ |
JM60030-2MW_ |
JM60030-3MW_ |
35-60 |
JM60060-1MW_ |
JM60060-2MW_ |
JM60060-3MW_ |
70-100 |
JM60100-1MW14 |
JM60100-2MW14 |
JM60100-3MW14 |
110-200 |
JM60200-1MW16 |
JM60200-2MW16 |
JM60200-3MW16 |
225-400 |
JM60400-1MW16 |
JM60400-2MW16 |
JM60400-3MW16 |
JM60400-1MW26 * |
JM60400-2MW26 * |
JM60400-3MW26 * |
* Lineside dual box lug terminal.