Schrack-Info
Basic electronic type release for motor protection ENM
The ENM electronic trip unit allows for tighter tolerance trip times.
•Over-load long-time delay protection
Setting current Ir=In x 0.4-0.5-0.6-0.7-0.8-0.9-1.0, OFF
Tripping time Tr (s): 48, 16, 24, Accuracy ±10%
•Short circuit short-time delay protection
Setting current Isd=Ir × 5-6-8-9-10-11-12, OFF, Accuracy ±15%
Tripping time Tsd (ms): 100, Accuracy ±40
•Short circuit instantaneous protection
Setting current Ii=In × 15, Setting current Isd
Max. tripping time (ms): 60
•Phase unbalance/Phase failure Iunbal: 30%-40%-50%-60%-70%-80%-90% (Phase failure)-OFF
Max. trip time of phase imbalance (s): 4-6-8-10, Accuracy ±10%
Tripping time of phase failure (s): 0.25, Accuracy ±20%
The ENM electronic trip unit allows for tighter tolerance trip times.
•Over-load long-time delay protection
•Short circuit short-time delay protection
•Short circuit instantaneous protection
•Phase unbalance/Phase failure Iunbal: 30%-40%-50%-60%-70%-80%-90% (Phase failure)-OFF
| EAN-Code | 9004840894264 |
|---|---|
| Net width | 140,00mm |
| Net height | 255,00mm |
| Net weight | 6,00kg |
| Power loss | 72,00W |
| Min. ambient temperature | -40°C |
| Max. ambient temperature | 70°C |
| Device category | circuit breaker |
| Standard | EN 60947-2 |
| Rated current | 400A |
| Rated voltage | < 690VAC |
| Short circuit switching capacity (400V) | 50kA |
| Size type | 3 |
| Tripping Unit | Electronic release for motor protection - Type ENM |
| Poles | 3 |
| Pollution degree | 3 |
| IP Rating | IP40 |
| Rated insulation voltage [Ui] | 1000V |
| Rated impulse withsand voltage [Uimp] | 12000V |
| Rated ultimate short-circuit breaking capacity Icu | 50kA |
| Rated service breaking capacity Ics | 50kA |
| AC 380/400/415V | 50kA (Icu) / 50kA (Ics) |
| AC 440V | 50kA (Icu) / 50kA (Ics) |
| AC 500V | 40kA (Icu) / 40kA (Ics) |
| AC 660/690V | 12kA (Icu) / 12kA (Ics) |
| Electrical endurance (Operation cycle) | ## |
| AC 415V, In | 4000 |
| AC 690V, In | 1500 |
| Manufacturer | Schrack |
| - | Sommeroffer |
| Packaging units | 1 pcs |
