Type 72.11 Level control relays for conductive liquids are equipped with a fixed sensitivity of 150 kΩ, a fixed tripping delay of 1s, with filling or emptying function selectable via an external jumper link.
Features include:
• Filling and emptying functions
• LED indicator
• Double insulation (6 kV – 1.2/50 µs) between:
– Power supply and contacts
– Probes and power supply
– Contacts and probes
• 35 mm rail (EN 60715) mounting
• Control of about a single level or between Min/Max levels