M9B 3Ø Star Delta Auto Switch
Protects 3Ø star delta motors against loss of any one phase; tested before dispatch.
Key Features
- Adjustable ON delay, monitors 3 phase supply
- pre-wired models
- low voltage operation
- protection in auto and manual
Benefits
- Protection: single phasing
- reverse phasing
- unbalanced supply
- stops motor on any fault
- on-time delay to avoid immediate start
Technical Specifications
| 415 V AC 50 Hz | |
| 1 NO | |
| 5 A 240 V AC resistive | |
| unbalance trip 80 V ±10 V | |
| unbalance delay 3.0 s ±1.0 s | |
| ON delay 30 s ±1.0 s or as required | |
| auto reset | |
| plastic | |
| free mounting | |
| star to delta timer 10 to 15 s | |
| modes Auto/Bypass | |
| 118 x 77 x 118 mm |