Liquid level control relay PZ-831 RC three independent control levels mounting on TH-35 rail PZ-831RC

Liquid level control relay – reliable monitoring and protection

The PZ-831RC relay is a device designed to monitor the level of electrically conductive liquids. Its design, based on the principle of conductivity, allows for precise detection of the presence of liquid at three independent levels. Mounting on a TH-35 rail simplifies integration with existing electrical installations, both in industrial and domestic conditions.

Versatile application and solid construction

This relay is used wherever it is necessary to control the liquid level – from industrial tanks, through irrigation systems, to home hydraulic installations. Made of high-quality materials, it ensures long-lasting and trouble-free operation. Three independent switching contacts (3xNO) allow for flexible configuration of the alarm system or control of devices depending on the liquid level. Adjustable sensitivity setting allows you to adapt the relay's operation to the specific properties of the liquid being controlled.

Key features and benefits:

• Three-state measurement: Monitoring three independent liquid levels provides full control over the process and allows for a quick response in the event of exceeding permissible values.
• Adjustable sensitivity: The ability to adjust the relay's sensitivity to the conductivity properties of the liquid ensures measurement accuracy and minimizes the risk of false alarms.
• Mounting on TH-35 rail: Standard mounting simplifies installation and integration with existing control systems.
• Screw connection: Provides a secure and durable connection of electrical wires.
• Galvanic isolation of terminals 3-4-5-6: Increases safety and minimizes electromagnetic interference.
• Wide operating temperature range (-25 ÷ 50 °C): Enables operation in harsh environmental conditions.
• Universality: Suitable for controlling the level of various electrically conductive liquids (excluding rainwater).

Technical specifications:

The PZ-831RC relay has 4 inputs for electrodes, which allows for flexible configuration of the measurement system. It is worth noting that the probe terminals are galvanically isolated from the mains, which increases safety. The maximum load current of each contact is 8A, which allows you to control various electrical devices. The switching delay of the contacts is a maximum of 2 seconds, which prevents unwanted switching caused by temporary disturbances. The power consumption of the device is 1.1 W at a supply voltage of 230V AC. The width of the relay is 18 mm (3 modules), which allows for efficient use of space in the switchgear cabinet.