| Type |
NDD4A-S(JD-501S) |
NDD4A-(DBJ) |
NDD4B-S(JD-601S) |
NDD4B(JD-601JDB-90) |
| name |
Digital intelligent motor protector |
| Operation Power |
AC 220V 380V 50HZ(Other voltage can make) |
| Rating Current |
1~50A |
20~100A,80~200A |
50~200A |
| Protect Function |
1.Phase-failure protect
2.Over current protect
3.Three-phase unbalance protect |
1.Phase-failure protect
2.Over current protect
3.Three-phase imbalance protect
4.Block protect
5.Leakage protect |
| Display Type |
Digital indication |
Light indication |
Digital indication |
Light indication |
| Display Accuracy |
2.0 class |
2.0 class |
| Phase-failure protect time |
≤2s |
≤2s |
| Overload protect time |
1.2Ie overload current protect act time:120s±10% |
| Three phase current imbalance protector time |
When current differences of 1-phase and other 2-phase reach up 40%~60%,the protect act time ≤2s |
| Leakage protect time |
------ |
≤0.1s |
| Jump-start relay time |
------ |
5~60s |
| Reset |
Pushbutton and power cut reset |
Power cut reset |
| Contact capacity |
AC380V 3A (Resistance) |
AC380V 5A (Resistance) |
| Outline dimension(mm) |
70×127 ×120 |
64×162×154 |
| Electrical life |
 |
| Mechanical life |
 |
| Mounting type |
Surface mounting |
| Cross reference |
JD-501S |
DBJ |
JD-601S |
JD-601 JDB-90 |
