Siemens 3UG5501-1AW30 Analog Level Monitoring Relay, Conductive, 1-Channel, AC/DC 24-240 V, 2 CO Contacts

Analog level monitoring relay with conductive measuring principle for precise liquid level control. Monitors one channel with adjustable resistance range from 0.2 kOhm to 200 kOhm, making it ideal for conductive liquids. Wide supply voltage range AC/DC 24-240 V ensures compatibility with various control systems.

Advantages

Reliable conductive level detection with adjustable hysteresis (5-50%) prevents relay chatter. Response and startup delays (0.1-20 s) allow customization for process stability. Two change-over contacts provide flexible output switching. DIN rail mounting and screw terminals enable quick installation. IP20/IP40 protection suits industrial control cabinets.

Suitable for

• Liquid level monitoring in tanks and vessels
• Pump control for filling or emptying applications
• Leakage detection in conductive media
• Industrial automation and process control

Key specifications

• Measuring principle: Conductive
• Number of channels: 1
• Supply voltage: AC/DC 24-240 V, 50/60 Hz
• Output: 2 change-over relay contacts
• Adjustable resistance range: 0.2-200 kOhm
• Adjustable hysteresis: 5-50%
• Adjustable response delay: 0.1-20 s
• Adjustable startup delay: 0.1-20 s
• Mounting: DIN rail 35 mm
• Terminals: Screw type
• Protection: IP20 terminals, IP40 front
• Operating temperature: -25 to +60 °C
• Approvals: CE, UL, CSA, CCC

Recommendations

For reliable conductive level monitoring in industrial environments, this Siemens relay offers precise adjustment and robust performance. Verify electrode compatibility and ensure proper grounding for accurate measurements.