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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
• Weight : ca. 170g
• CE marking : siehe Konformitätserklärung
• Ex-protection/IECEx : siehe Prüfbescheinigung

Stainless steel float switch combination

Float switch combinations QFSK for level monitoring & level control with maximum and minimum contact sensor.

Properties

• Protection class EN60529 : IP 68
• Material Float : VA 1.4571
• Material hose : Edelstahlwellschlauch (1.4404) mit Edelstahldrahtumflechtung (1.4301)
• rod length : max. 5 m
• Number of floats : bis 5
• Operating temperature : max. + 150 °C
• media density : ρ ≥ 0,8g/cm³
• Switching system : Reed-Schalter
• Contact : Wechsler, NO, NC
• Switching voltage : 4...250 V AC/DC
• Switching current : 1 mA ...1 A
• Switching capacity : max. 1A, 60 VA/60 W
• Switching hysteresis : ca. 100 mm
• Switching angle : ca. + 20° / – 20°
• Ex-protection : optional; IBExU10ATEX 1089
• Operating pressure WFSK-25 : max. 15 bar
• Operating pressure QFSK-26 : max. 6 bar