Liquid level control relay PZ-828 B single-pole, without sensor, contacts: 1P, I=16A, 2 modules PZ-828B

Liquid Level Control Relay – Reliable Installation Protection

The PZ-828 B relay is a device designed to monitor the level of electrically conductive liquids. It is used to detect flooding and protect installations from the effects of uncontrolled liquid level increases, e.g., in tanks, pumping stations, or drainage systems. It is a single-pole relay, meaning it reacts to one fixed liquid level. The absence of a probe in the set allows it to be adapted to specific needs and working conditions.

This relay can be used in both home installations (e.g., protecting basements from flooding) and industrial facilities where continuous liquid level control is required. DIN 35 mm rail mounting ensures convenient and quick installation in electrical distribution boards. Compact dimensions (2 modules) save space.

Construction and functionality

The PZ-828 B is characterized by a solid construction and high reliability. It has one changeover contact (1P) with a load capacity of 16A, which allows controlling various electrical receivers – from simple acoustic signaling devices to drainage pumps or solenoid valves. Screw terminals provide secure and durable connection of wires. The device is adapted to work in a wide temperature range (from -25°C to +50°C) and has a protection class of IP20, which guarantees safe use in normal environmental conditions.

It is worth noting that there is no possibility to adjust the sensitivity setting – the relay operates at a fixed, factory-set value, which simplifies its configuration and ensures repeatability of operation. The probe is not included in the set, giving the user the freedom to choose the appropriate type of probe adapted to the type of liquid being controlled and the specifics of the application.

Key features and benefits

• Flood protection: effectively protects electrical installations and devices from damage caused by water or other conductive liquids.
• Versatility: can be used in various applications – from domestic to industrial.
• Simple installation: thanks to the modular design and 35 mm DIN rail, installation is quick and easy.
• High reliability: solid construction guarantees long-lasting and trouble-free operation of the device.
• Safety: meets the required safety standards and has a protection class of IP20.
• Freedom of probe selection: the absence of a probe in the set allows it to be adapted to the specific needs of the user.
• Adapted to work with loads up to 16A: allows controlling various electrical devices with appropriate power.
• Fixed sensitivity setting: simplifies device configuration and ensures repeatability of operation.