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| HT81 |
84874110 |
Undertemperature and overtemperature (window) |
- |
3-wire PT100 input
Low threshold: -1°C to +11°C
High threshold: +34°C to +46°C |
24 - 240 V AC/DC 50/60 Hz |
1 s to 10 s |
1 single changeover relay 5 A |
| HT81-2 |
84874120 |
Undertemperature and overtemperature (window) |
- |
3-wire PT100 input
Low threshold: -1°C to +11°C
High threshold: +34°C to +46°C |
24 - 240 V AC/DC 50/60 Hz |
1 s to 10 s |
2 single changeover relay contact (NO) 5 A |
| HWT81 |
84874130 |
Undertemperature and overtemperature (window) |
- |
3-wire PT100 input
Low threshold: -1°C to +11°C
High threshold: +34°C to +46°C |
24 - 240 V AC/DC 50/60 Hz |
1 s to 10 s |
2 single changeover relay contact (NO) 5 A |
| Phase failure and phase sequence |
Regeneration 70% of Un |
208-480 V AC 50/60 Hz |
Selection guide 
Phase control
Temperature control in lifts
