|
Phase failure relay with regulation and control of contactor contacts W 303 sr |
|||
 |
|
Category: Phase failure relays (sensors) Housing to mount on TH35 rail (1 module) Download instruction W 303 sr  |
|
|
Net price: 96,00 zł |
|||
 |
 |
||
Phase failure relay protects three-phase motors from damage caused by the work at half power. The device switches off the power supply circuit coil that controls motor in case of asymmetry in different phases, in particular voltage decay in at least one of the phases. |
|||
| Operation mode: | continuous (C) |
| Noise level: | normal (N) |
| Phase sequence control: | No |
| Control of contactor contacts: | Yes |
| Power supply from terminals: | L1, N |
| Lower switch off voltage: | adjustable 170V ÷ 190V |
| Switch off time: | adjustable 0 ÷ 6s |
| Return time: | ca. 1s |
| Hysteresis: | ca. 5V |
| Work temperature: | -15°C ÷ 40°C |
| Contact type: | SPDT - change-over |
| Contact rated current: | 8A |
| Rated voltage of the contact: | max. 400V AC |
| Protection class: | IP 20 |
| Housing dimentions: | type Z1, 90x65x17,5 mm (1 module) |
| Weight: | 80g |
| Connections: | screw terminals (2,5mm2) |
| Manner of mounting: | on TH35 rail |
| Rated supply voltage/frequency: | |
| W 303 sr | 3N AC 400/230V, 50Hz |
