NewTrend / OEM · Normally-open DC contactor
Product overview
The supplied SW400 reference identifies a single-pole, normally-open 400 A DC contactor for motor and equipment switching.
Technical selection summary
| Listing / reference model | SW400 |
|---|---|
| Product type | Normally-open DC contactor |
Confirm continuous versus interrupted duty, actual contact voltage, coil voltage, terminals and mounting. The family description does not establish third-party manufacture, replacement equivalence or approval. Confirm interrupted/uninterrupted duty, stud and coil-terminal dimensions, mounting-hole pattern and permitted orientation. For vertical mounting, verify whether the main studs must point upward.
Product reference images and drawings
Use the matching model and version in the reference data. Confirm the applicable rating, test conditions and dimensions against the exact supplied unit.
| Model | SW400 |
| Rated Current | 400A |
| Contact Form | 1NO, SPST |
| Contact Voltage | 6-80V DC |
| Coil Voltage | 12VDC, 24VDC, or other DC voltgae less than 220VDC |
| Coil Power | 11-15W |
| Dielectric Voltage Strength | 50Hz 1000V AC 1min |
| Volt Drop of Main Contact | <80mV |
| Typical Pull-In Time | <30ms |
| Typical Drop-Out Time (N/O Contacts to Open) | <30ms |
| Pull-In Voltage (Coil at 20℃) | <66%Us |
| Drop-Out Voltage (Coil at 20℃) | 5% – 30% |
| Mechanical life | 100 thousand times |
| Electric life | 20 thousand times |
| Circuit Diagram |  |
