Square Pipe Fuse Links With Knife Contacts
Applications
- Protection against overload and short-circuit in electric lines (type gG), also available for protection of semiconductor parts and equipment’s against short-circuit (type aR) and protection of motors (type aM).
- Rated voltage up to 1140V; Rated current up to 1250A; Working frequency 50Hz AC; Rated breaking capacity up to120KA. Compliant with GB13539 and IEC269.
Design Features
- Variable cross-section fuse element made from pure copper or silver sealed in cartridge made from high-duty ceramic. Fuse tube filled with chemically treated high-purity quartz sand as arc-extinguishing medium. Dot-welding of fuse element ends to the terminals ensures reliable electric connection and forms insert knife type contacts. Indicator or striker may be attached to the fuse link to show cutout of fuse or to give various signals and to cut the circuit automatically.
Table 1
Types |
Rated voltage(V) |
Rate current |
Dimension/ Size (mm) |
Weight (g) |
Ours |
Cross reference |
General (gG) |
Fast(aR) |
General (gG) |
Fast(aR) |
Size |
Fig. |
NH00C |
-- |
-- |
-- |
500/660 |
10 ~ 100 |
000 |
Figure 1 |
138 |
Table 2
Types |
Rated voltage(V) |
Rate current(A) |
Dimension/ Size (mm) |
Weight (g) |
Ours |
Cross reference |
General (gG) |
Fast(aR) |
General (gG) |
Fast(aR) |
Size |
Fig. |
A |
B |
C |
D |
H |
NH00 |
RS31 |
-- |
-- |
500/660 |
10 ~ 160 |
00 |
Figure 2 |
78 |
50.5 |
15 |
30 |
60 |
201 |
NH0 |
-- |
-- |
-- |
500/660 |
6 ~ 160 |
00 |
Figure 2 |
125 |
67 |
15 |
30 |
60 |
267 |
Table 3
Types |
Rated voltage(V) |
Rate current(A) |
Dimension/ Size (mm) |
Weight (g) |
Ours |
Cross reference |
General (gG) |
Fast(aR) |
General (gG) |
Fast(aR) |
Size |
Fig. |
A |
B |
C |
D |
H |
NH1 |
RS32 |
-- |
-- |
500/660 |
32 ~ 250 |
1 |
Figure 3 |
135 |
67 |
20 |
46 |
58.5 |
447 |
NH2 |
RS33 |
-- |
-- |
500/660 |
80 ~ 400 |
2 |
Figure 3 |
150 |
68 |
30 |
58.5 |
68.5 |
727 |
NH3 |
RS34 |
-- |
-- |
500/660 |
160 ~ 630 |
3 |
Figure 3 |
150 |
68 |
36 |
70 |
82 |
975 |
Table 4
Types |
Rated voltage(V) |
Rate current(A) |
Dimension/ Size (mm) |
Weight (g) |
Ours |
Cross reference |
General (gG) |
Fast(aR) |
General (gG) |
Fast(aR) |
Size |
Fig. |
NH1-S |
-- |
-- |
-- |
500/660 |
16 ~ 160 |
1 |
Figure 4 |
312 |
Table 5
Types |
Rated voltage(V) |
Rate current(A) |
Dimension/ Size (mm) |
Weight (g) |
Ours |
Cross reference |
General (gG) |
Fast(aR) |
General (gG) |
Fast(aR) |
Size |
Fig. |
NH2-S |
-- |
-- |
-- |
500/660 |
35 ~ 250 |
2 |
Figure 5 |
458 |
NH3-S |
-- |
-- |
-- |
500/660 |
200 ~ 400 |
3 |
Figure 5 |
727 |
Table 6
Types |
Rated voltage(V) |
Rate current(A) |
Dimension/ Size (mm) |
Weight (g) |
Ours |
Cross reference |
General (gG) |
Fast(aR) |
General (gG) |
Fast(aR) |
Size |
Fig. |
A |
B |
C |
D |
H |
RO30A |
RS30A |
NT00C |
-- |
500/660 |
4 ~ 100 |
000 |
Figure 6 |
78 |
49 |
15 |
21 |
48 |
123 |
RO30B |
RS30B |
NT00C |
-- |
500/660 |
4 ~ 100 |
000 |
Figure 6 |
78 |
49 |
15 |
21 |
48 |
117 |
RO30C |
RS30C |
3NA3 |
3NE18.. |
500/660 |
10 ~ 100 |
000 |
Figure 6 |
78 |
49 |
15 |
21 |
52.5 |
132 |
RO31A |
RS31A |
PH00 |
-- |
500/660 |
10 ~ 160 |
00 |
Figure 6 |
78 |
49 |
15 |
30 |
53 |
178.5 |
RO31B |
RS31B |
NT0 |
3NE41.. |
500/1140 |
6 ~ 160 |
0 |
Figure 6 |
125 |
68 |
15 |
29 |
61.5 |
278 |
RO31C |
RS31C |
NT1 |
-- |
500 |
32 ~ 200 |
1 |
Figure 6 |
135 |
38 |
15 |
29 |
61.5 |
293.5 |
Table 7
Types |
Rated voltage(V) |
Rate current(A) |
Dimension/ Size (mm) |
Weight (g) |
Ours |
Cross reference |
General (gG) |
Fast(aR) |
General (gG) |
Fast(aR) |
Size |
Fig. |
A |
B |
C |
D |
H |
NT00 |
RS31 |
RT16-00 |
3NE80.. |
500/660 |
6 ~ 160 |
00 |
Figure 7 |
78 |
49 |
15 |
29 |
56 |
175 |
NT0 |
-- |
RT16-0 |
-- |
500/660 |
6 ~ 160 |
0 |
Figure 7 |
125 |
125 |
15 |
29 |
56 |
252 |
Table 8
Types |
Rated voltage(V) |
Rate current(A) |
Dimension/ Size (mm) |
Weight (g) |
Ours |
Cross reference |
General (gG) |
Fast(aR) |
General (gG) |
Fast(aR) |
Size |
Fig. |
A |
B |
C |
D |
H |
RO32 |
RS32 |
NT1, RT16-1, 3NA1, RT20-1 |
3NE12.. |
500/660 |
32 ~ 250 |
1 |
Figure 8 |
135 |
68 |
20 |
48 |
60 |
455 |
RO32A |
RS32A |
-- |
-- |
1140 |
200 |
|
Figure 8 |
172 |
110 |
19.5 |
44 |
58 |
570 |
RO32B |
RS32B |
NT1, RT16-1 |
-- |
500 |
250 |
1 |
Figure 8 |
135 |
68 |
20 |
40 |
68 |
393 |
RO33 |
RS33 |
NT2, RT16-2, 3NA1, RT20-2 |
3NE13.. |
500/660 |
80 ~ 400 |
2 |
Figure 8 |
150 |
68 |
25 |
58 |
70 |
650 |
RO33B |
RS33B |
RT16-2 |
-- |
500 |
400 |
2 |
Figure 8 |
150 |
68 |
25 |
52 |
71 |
580 |
RO34 |
RS34 |
NT3, RT16-3, NH3, RT20-3 |
3NE14.. |
500/660 |
160 ~ 630 |
3 |
Figure 8 |
150 |
68 |
32 |
67 |
80 |
880 |
RO35 |
RS35 |
-- |
-- |
500 |
6 ~ 160 |
1 |
Figure 8 |
135 |
68 |
20 |
30 |
53 |
249 |
RO36 |
RS36 |
EAPO |
-- |
500 |
32 ~ 200 |
|
Figure 8 |
135 |
68 |
20 |
40 |
59 |
356 |
RO39A |
RS39A |
NT4a |
-- |
380/500 |
500 ~ 1250 |
4a |
Figure 8 |
200 |
90 |
50 |
97 |
113 |
2140 |
Table 9
Types |
Rated voltage(V) |
Rate current(A) |
Dimension/ Size (mm) |
Weight (g) |
Ours |
Cross reference |
General (gG) |
Fast(aR) |
General (gG) |
Fast(aR) |
Size |
Fig. |
A |
B |
C |
D |
G |
E |
F |
H |
RO34K |
RS34K |
-- |
3NC8 |
500/660 |
150 ~ 630 |
|
Figure 9 |
140 |
68 |
32 |
70 |
6 |
108 |
10.5 |
85 |
810 |
RO38 |
RS38 |
-- |
3NE3626 |
-- |
200 ~ 630 |
|
Figure 9 |
160 |
86 |
32 |
70 |
6 |
126 |
11 |
81.5 |
1050 |
RO39 |
RS39 |
NT4, RT17 |
-- |
500 |
500 ~ 1250 |
4 |
Figure 9 |
200 |
90 |
50 |
97 |
8 |
150 |
16.5 |
113 |
2470 |
RO39B |
RS39B |
NT4B, RT17 |
-- |
500 |
500 ~ 1000 |
4 |
Figure 9 |
200 |
79 |
50 |
87.5 |
8 |
150 |
17 |
114.5 |
2100 |
Note: The joint holes of two-horizontal type is allowed to be changed to one horizontal one straight type or twostraight type.
Table 10
Types |
Rated voltage(V) |
Rate current(A) |
Dimension/ Size (mm) |
Weight(g) |
Ours |
Cross-reference |
General (gG) |
Fast(aR) |
General (gG) |
Fast(aR) |
Size |
Fig. |
RO34A |
RS34A |
8SY5023 |
-- |
1140 |
450 |
-- |
Figure 10 |
1066 |
Table 11
Types |
Rated voltage(V) |
Rate current(A) |
Dimension/ Size (mm) |
Weight (g) |
Ours |
Cross reference |
General (gG) |
Fast(aR) |
General (gG) |
Fast(aR) |
Size |
Fig. |
A |
B |
C |
D |
E |
F |
G |
H |
RO31Z |
RS31Z |
RT16A-00 |
-- |
500/660 |
35 ~ 125 |
00 |
Figure 11 |
78 |
49 |
15 |
29 |
15 |
22.5 |
-- |
59.5 |
183 |
RO32Z |
RS32Z |
RT16A-1 |
-- |
500/660 |
200 ~ 250 |
1 |
Figure 11 |
135 |
68 |
20 |
48 |
25 |
14.5 |
16 |
60 |
390 |
RO33Z |
RS33Z |
RT16A-2 |
-- |
500/660 |
315 ~ 400 |
2 |
Figure 11 |
150 |
68 |
25 |
58 |
30 |
14.5 |
19 |
70 |
683 |
RO34Z |
RS34Z |
RT16A-3 |
-- |
500/660 |
500 ~ 630 |
3 |
Figure 11 |
150 |
68 |
32 |
67 |
30 |
14.5 |
19 |
82 |
880 |
NTA-1 |
-- |
-- |
-- |
500/660 |
200 ~ 250 |
1 |
Figure 11 |
135 |
68 |
20 |
48 |
8 |
26.5 |
-- |
60 |
380 |
NTA-2 |
-- |
-- |
-- |
500/660 |
315 ~ 400 |
2 |
Figure 11 |
150 |
68 |
25 |
58 |
8 |
32 |
-- |
70 |
673 |
NTA-3 |
-- |
-- |
-- |
500/660 |
500 ~ 630 |
3 |
Figure 11 |
150 |
68 |
32 |
67 |
8 |
40 |
-- |
82 |
870 |
RO36Z |
RS36Z |
-- |
-- |
500/660 |
125 ~ 160 |
|
Figure 11 |
135 |
68 |
20 |
40 |
25 |
20 |
11.5 |
61 |
369 |
Table 12
Types |
Rated voltage(V) |
Rate current(A) |
Dimension/ Size (mm) |
Weight (g) |
Ours |
Cross reference |
General (gG) |
Fast(aR) |
General (gG) |
Fast(aR) |
Size |
Fig. |
A |
B |
C |
D |
E |
F |
G |
H |
RO32BZ |
RS32BZ |
-- |
HLS1 |
500 |
125 ~ 250 |
1 |
Figure 12 |
135 |
68 |
20 |
50.5 |
9 |
24.5 |
26 |
68 |
380 |
RO33BZ |
RS33BZ |
-- |
HLS2 |
500 |
250 ~ 400 |
2 |
Figure 12 |
150 |
68 |
25 |
66.5 |
9 |
29 |
35 |
71 |
675 |
Table 13
Types |
Rated voltage(V) |
Rate current(A) |
Dimension/ Size (mm) |
Weight (g) |
Ours |
Cross reference |
General (gG) |
Fast(aR) |
General (gG) |
Fast(aR) |
Size |
Fig. |
A |
B |
C |
D |
H |
RTO-50 |
-- |
-- |
-- |
380 |
10 ~ 50 |
-- |
Figure 13 |
103 |
66 |
10.3 |
25 |
52 |
189.5 |
RTO-100 |
-- |
-- |
-- |
380 |
20 ~ 100 |
-- |
Figure 13 |
125 |
67 |
18 |
40 |
52 |
313 |
RTO-200 |
-- |
-- |
-- |
380 |
50 ~ 200 |
-- |
Figure 13 |
135 |
67 |
23 |
46 |
58 |
404.5 |
RTO-400 |
-- |
-- |
-- |
380 |
160 ~ 400 |
-- |
Figure 13 |
145 |
67 |
30 |
55 |
66 |
601 |
RTO-600 |
-- |
-- |
-- |
380 |
250 ~ 600 |
-- |
Figure 13 |
165 |
67 |
36 |
66 |
77 |
855 |
RTO-1000 |
-- |
-- |
-- |
380 |
500 ~ 1000 |
-- |
Figure 13 |
280 |
90 |
50 |
85 |
100 |
2050 |
Characteristics Curve
Time-current rang of “gG” fuse links
Time-current rang of “gG” fuse links
Breaking current characteristics curve of “gG” fuse links