Liquid level control relay PZ-828 RC B single-pole, with sensitivity adjustment, without probe, contacts: 1P, I=16A, 2 modules PZ-828RC-B

Liquid Level Control – Reliability and Precision

The PZ-828 RC B relay is a single-pole relay designed to monitor the level of electrically conductive liquids. The device is particularly useful in systems for protecting against tank overfilling, in heating installations, pumps, and in many other industrial and domestic applications. Thanks to adjustable sensitivity, it can be adapted to different types of liquids and operating conditions.

Solid construction and easy installation are features that will be appreciated by both installers and end-users. The relay is mounted on a standard 35 mm rail and occupies 2 modules, making it easy to integrate with existing installations. Screw terminals ensure secure and durable electrical connections.

Functionality and application

The PZ-828 RC B relay reacts to changes in the electrical conductivity of the liquid, allowing for precise detection of its level. Sensitivity adjustment allows you to optimize the device's operation depending on the properties of the monitored liquid – the higher the conductivity, the lower the sensitivity should be set. The relay has a single changeover contact (1P) with a load capacity of 16A, allowing it to control various devices, such as pumps, solenoid valves or alarm indicators.

• Wide application: ideal for systems protecting against overfilling tanks with water, oil or other conductive liquids.
• Adjustable sensitivity: allows you to adapt the device to different types of liquids and operating conditions.
• Easy installation: mounting on a standard 35 mm rail – saves time and installation costs.
• Durable connections: screw terminals guarantee stable and reliable electrical connections.
• Compact dimensions: occupies only 2 modules – ideal for tight spaces.

Technical parameters and compliance with standards

The PZ-828 RC B relay has been designed with safety and reliability in mind. It has changeover contacts (1NO/NC) and a supply voltage of 230V AC. The device is characterized by high resistance to electromagnetic interference and stable operation in a wide temperature range (from -25°C to 50°C). The lack of detachable terminals provides additional connection safety.

The device has one input for the electrode, which simplifies the connection of the measuring probe (probe is not included). Adjustable sensitivity setting allows for precise adaptation of the relay's operation to the specifics of the monitored liquid.