WS Series - autocentrated
WS Series - autocentrated
WS Series - autocentrated
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6. Characteristics and Dimensions<br />
Earth-Leakage Circuit Breakers<br />
NV250-RW<br />
Type NV250-RW<br />
<strong>Series</strong><br />
Group<br />
Frame size 250<br />
Type name<br />
Rated current In (Amp.)<br />
R series<br />
<strong>WS</strong>S G3<br />
NV250-RW<br />
Number of poles 3<br />
Rated operational voltage Ue (V AC)<br />
High-speed type<br />
Time-delay type<br />
Earth-leakage indication system<br />
Rated breaking capacity (kA)<br />
IEC60947-2 (Icu/Ics)<br />
Rated current sensitivity I∆n (mA)<br />
Max. operating time at 5I∆n (s)<br />
Rated current sensitivity I∆n (mA)<br />
Max. operating time at 5I∆n (s)<br />
Inertial non-operating time at 2I∆n (s)<br />
AC440V<br />
AC400V<br />
AC230V<br />
125 150 175<br />
200 225<br />
230–400–440<br />
Multi-voltage type<br />
30 • 100 • 500<br />
Selectable<br />
0.04<br />
100 • 300 • 500<br />
Selectable<br />
0.45 • 1.0 • 2.0<br />
Selectable<br />
0.1 • 0.5 • 1.0<br />
Button<br />
125/125<br />
125/125<br />
125/125<br />
■Operating Characteristics<br />
■Earth-Leakage Tripping Characteristics<br />
Operating time<br />
4h<br />
2h<br />
1h<br />
30min<br />
20min<br />
14min<br />
10min<br />
6min<br />
4min<br />
2min<br />
1min<br />
30s<br />
20s<br />
10s<br />
5s<br />
2s<br />
1s<br />
0.5s<br />
0.2s<br />
0.1s<br />
0.05s<br />
0.02s<br />
0.01s<br />
Min.<br />
■Internal Accessories<br />
NV250-RW<br />
Max.<br />
Max.total<br />
breaking time<br />
Time-delay trip<br />
Instantaneous trip<br />
1 1.3 2 3 4 5 6 7 10 15 20 30 40<br />
100% of Rated current<br />
Operating time<br />
4h<br />
2h<br />
1h<br />
30min<br />
10min<br />
4min<br />
2min<br />
1min<br />
30s<br />
10s<br />
5s<br />
2s<br />
1s<br />
0.5s<br />
0.2s<br />
0.1s<br />
0.04s<br />
0.02s<br />
0.01s<br />
Rated nonoperating current<br />
Highspeed<br />
type<br />
Rated current sensitivity<br />
25 50 100<br />
Time-delay type<br />
0.45s(MAX)<br />
Inertial<br />
nonoperating time<br />
500 25 50 100 5001000<br />
Time-delay type<br />
1s(MAX)<br />
Inertial<br />
nonoperating time<br />
25 50 100 5001000<br />
Ground-fault current (% of rated current sensitivity)<br />
■Ambient Compensating Curve<br />
Rated nonoperating current<br />
Rated current sensitivity<br />
Rated nonoperating current<br />
Rated current sensitivity<br />
Rated nonoperating current<br />
Time-delay type<br />
2s(MAX)<br />
Rated current sensitivity<br />
Inertial<br />
nonoperating time<br />
25 50 100 5001000<br />
Left-side<br />
mounting<br />
<br />
NV250-RW<br />
Operating handle<br />
Right-side<br />
mounting<br />
Lead wire<br />
direction<br />
Curreny rating (%)<br />
130<br />
120<br />
110<br />
100<br />
90<br />
Rated ambient<br />
Remark: (1) refer to 24.<br />
■External Accessories<br />
80<br />
–10 0 10 20 30 40 50 60<br />
Ambient temperature (°C)<br />
(rated ambient 40°C)<br />
■Internal Wiring Diagram<br />
Enclosure<br />
Accessories<br />
Operating handle<br />
Dustproof<br />
Waterproof<br />
Handle lock device<br />
Type name<br />
Reference<br />
page<br />
Accessories<br />
Type name<br />
F F2UW<br />
Mechanical<br />
27<br />
S S2SW<br />
interlock<br />
MI MI-05SW3 (*1)<br />
V V2UW<br />
28<br />
Small TC-S TCS-2SW3W (*1)<br />
R R2UW<br />
29<br />
Large TC-L TCL-2SW3W (*1)<br />
S –<br />
Skeleton TTC TTC-2SW3 (*1)<br />
I – –<br />
Rear BTC BTC-2SW3W (*1)<br />
W –<br />
LC<br />
(*2)<br />
HL<br />
HL-S<br />
LC-2SW<br />
HLF-2SW<br />
HLN-2SW<br />
HLS-2SW<br />
32<br />
Terminal cover<br />
Plug-in PTC PTC-2SW3W (*1)<br />
Electrical<br />
operation device<br />
(*3)<br />
Notes: (*1) The designation depends on the number of poles. Refer to the reference page.<br />
(*2) HLF types are used for OFF-lock, and HLN types for ON-lock.<br />
(*3) An order should be placed at the same time as an order of circuit breaker main body.<br />
Reference<br />
page<br />
34<br />
30<br />
Line side<br />
Magnetic<br />
device<br />
Leakage<br />
indication button<br />
Test button<br />
Senstivity<br />
selector<br />
<br />
Load side<br />
53
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