RLY-CON-1NO1NC
Conductivity Relay - 1 or 2 Level Pump Up/Pump Down
A versatile conductivity relay offering reliable one- or two-level liquid control, selectable Pump Up/Down modes, adjustable sensitivity and compact DIN-rail installation.
- One Relay. Multiple Level Control Options.
- Reliable Control. Fewer Nuisance Switches.
- Flexible Supply. Compact Installation.

Overview
The MATelec Australia Conductivity Relay provides versatile, reliable liquid-level control for tank filling, sump drainage, and other conductive-liquid applications.
Featuring selectable Pump Up and Pump Down modes, the relay supports both one-level switching and two-level start-and-stop control, delivering flexible operation across a range of installations.
Adjustable 5–100 kΩ sensitivity allows the relay to be configured for different conductive liquids, while an adjustable 0.5–10 second output delay helps minimise nuisance switching caused by turbulence, splashing, and brief probe contact.
Designed for easy switchboard integration, the relay features a universal 24–240 V AC/DC supply and compact, one-module DIN-rail housing. A changeover output provides additional flexibility for controlling alarms, solenoid valves, control circuits, and suitably rated contactors.
The Conductivity Relay also offers a practical modern alternative for many applications using discontinued MultiTrode MTR-style relays, subject to assessment and rewiring of existing installations.
Product Details
SPECIFICATIONS
- Supply Voltage: 24–240 V AC/DC, 50–60 Hz
- Operating Functions: Pump Up / Pump Down
- Level Monitoring: One or two level
- Liquid Sensitivity: Adjustable 5–100 kΩ
- Probe Voltage: 3.5 V AC maximum
- Probe Current: Less than 0.1 mA
- Response Time: 400 ms maximum
- Output Contact: 1 × changeover SPDT
- Switching Voltage: 250 V AC / 24 V DC
- Maximum Current Rating: 8 A resistive load AC-1 / 2 A motor load AC-3
- Maximum Switching Capacity: 2000 VA AC-1 / 240 W DC
- Output Delay: Adjustable 0.5–10 seconds
- Electrical Life: 150,000 operations
- IP Rating: IP40 front / IP10 terminals
- Operating Temperature: −20 °C to +55 °C
- Mounting: DIN rail, one module
- Dimensions: 90 × 17.6 × 64 mm H × W × D
SKU Details
Single Point Range











