Level control relay FF PZ-828 16A 1P for 1–100 kΩ sensors

FF PZ-828 is a level control relay engineered to interface with resistive level sensors in the 1–100 kΩ range. The device provides a single-pole (1P) switching output rated for 16 A, enabling automatic control of pumps, solenoid valves or alarm circuits according to measured liquid level. Designed for both industrial and residential installations, this relay supports reliable ON/OFF control and straightforward integration into existing control panels.

Advantages

The relay accepts a wide sensor resistance range (1–100 kΩ), allowing use with many common float and probe sensors. A single-pole 16 A contact gives sufficient switching capacity for small to medium pumps and valve actuators. Its compact design and simple wiring reduce installation time and make it suitable for retrofitting in control cabinets. The device provides deterministic switching logic for level-based automation without the need for complex programming.

Suitable for

• Automatic start/stop control of domestic and industrial pumps
• Control of solenoid valves in tank filling and drainage systems
• Activation of visual or audible alarms on high/low level events
• Integration into simplified level monitoring systems and control panels

Key specifications

• Compatible sensor resistance range: 1–100 kΩ
• Output: single pole (1P) relay contact
• Switching capacity: 16 A (suitable for small to medium loads)
• Intended use: liquid level control and monitoring
• Mounting: panel or DIN-rail compatible form factor (compact design)

How to use

Connect the resistive level sensor leads to the designated sensor input terminals and wire the relay contact in series with the load (pump, valve, or alarm) according to the provided wiring diagram. Apply the appropriate supply voltage to the power terminals and verify correct polarity if applicable. Configure sensor placement and mechanical installation so that the sensor resistance changes according to the liquid level; the relay will switch the contact when the resistance threshold corresponding to the set level is reached. Perform functional checks at installation by simulating high and low liquid levels to confirm reliable switching and correct wiring.

Usage recommendations

Use sensors and cabling with insulation and environmental ratings suitable for the application (immersion, humidity, chemical exposure). Ensure the connected pump or valve current draw does not exceed the 16 A switching capacity; use an intermediate contactor for higher loads. Periodically inspect electrical connections and sensor condition to maintain reliable level control.