M3 . 300. T70O is a mini float switch with temperature switches 60 to 80°C, the switch function is open.
The Engler M3 is a compact mini‑float switch equipped with temperature switches covering 60 °C to 80 °C. It features a 3‑pole DIN 43650 connector, brass M20 × 1.5 screw‑type mounting, and an 8 mm brass guide tube that can be customized in length.
The device operates on 230 VAC with a 1 A switching current and 60 VA power rating. It is rated for a maximum pressure of 1 bar, a maximum temperature of 85 °C, and complies with IP65 protection. Accuracy is ±5 °C, with tighter tolerances available on request. This manual is written in German.
| Anschluss | 3‑pol Steckverbindung DIN 43650 |
|---|---|
| Befestigung | M20 × 1,5 Messing‑Verschraubung |
| Gleitrohr | Messingrohr 8 mm; Länge nach Kundenangabe |
| Niveauschalter | B4 – öffnet bei sinkendem Niveau |
| Temperaturschalter | Bimetall, Schaltfunktion: Offner |
| Temperaturbereich | 60 °C – 80 °C |
| Genauigkeit | ±5 °C (toleranzierbar) |
| Rückschalt‑Temperatur | Schaltpunkt – 30 °C + 15 °C |
| Schaltspannung | 230 VAC |
| Druck | max. 1 bar |
| Maximale Betriebstemperatur | max. 85 °C |
It operates between 60 °C and 80 °C.
The switching voltage is 230 VAC.
It is rated for up to 1 bar pressure.