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Electrode relays and contact protection relays

The electrode relays are used for conductive level detection. levels. The possible applications extend areas where conductive, liquid media are to be detected, controlled to be detected, controlled or regulated. Hereby level detection (overflow / dry run) as well as minimum / maximum as well as minimum / maximum controls can be realised. The contact protection relays are universal measuring transducers, which input signals (resistance values) with "Namur" specification (DIN EN 60947). Namur" specification (DIN EN 60947) into switching signals of floating output contacts.

Protection class EN60529

• clamp : IP20
• Housing : IP40

Technical Data

• Operating temperature : -20...+60 °C
• Storage temperature : -30...+80 °C
• Output contacts : potentialfrei
• Switching voltage : min. 5 V | max. 250 V AC / 150 V DC
• Switching current : min. 5 mA | max. 5 A AC / 5 A DC
• Switching capacity : min. 300 mW | max. 100 VA / 50 W
• Quiescent current : umschaltbar
• Weight : ca. 250 g
• CE marking : siehe Konformitätserklärung
• Ex-protection/IECEx : siehe Prüfbescheinigung

Overfill protection for containers

Level sensors type T-20_.F... are approved by the DIBt (German Institute for Structural Engineering) as liquid level limit switches for the overcharge protection of containers for storing water-dangerous liquids.

Connection

• ltdata.Polyesterdose :
• ltdata.Aluminiumdose :
• ltdata.Polyethylenanschlusskopf :
• Cable :
• Plug :

Properties

• Protection class EN60529 : IP 65
• connection thread : G 1", G 1¼", G 1½", G2", G3”
• Union nut : G 2¾", S 100x8
• Guide tube length : max. 6 m
• Operating pressure : Max. 20 bar
• media density : ρ ≥ 0,6 g/cm³
• Switching hysteresis : typ. 2 mm
• Switching point tolerance : max. 2 mm
• Operating temperature : atmosphärisch
• ltdata.BetriebstemperaturPP : max. 90°C

Resistance value

• Operational readiness : ca. 1 kΩ
• overfill alarm : ca. 12 kΩ
• Switching time : ca. 20 ms
• ltdata. :