Liquid level control relay PZ-829 B two-state, without probes, 2x1P contacts, I=2x16A, 3 modules PZ-829B

Liquid Level Control – Reliable Operation and Simple Installation

The PZ-829 relay is a device designed to monitor the level of liquids that conduct electricity, such as water, oils, or chemicals. It is suitable for both home and industrial installations where automatic detection and signaling of liquid level changes are crucial. It operates in a two-state system, meaning it reacts to two set levels – minimum and maximum.

This model features adjustable sensitivity, allowing for precise adaptation to the specifics of the controlled medium and operating conditions. DIN 35 mm rail mounting simplifies integration with existing electrical infrastructure. The relay is equipped with two independent switching contacts with a capacity of 16A each, enabling control of various circuits – e.g., starting a pump, a sound or visual alarm.

Functionality and Construction

The PZ-829 relay works with three PZ2 type float switches (available separately), which are placed at the desired heights. When the float switch is immersed in the liquid, the state of the relay contacts changes, initiating the programmed action. The device has a factory-set sensitivity, which can be adjusted as needed. Screw connections ensure secure and durable electrical connections.

It is worth noting the galvanic isolation of the contacts from the power supply – this is an additional protection of the installation and increased safety of use. The relay is compact (3 modules) and made of high-quality materials, guaranteeing its reliability and long service life. Please note that the device is not intended for measuring rainwater levels – in such cases, it is recommended to use the PZ-829 RC-WD model.

Key Features and Benefits

• Two-state operating system: precise control of minimum and maximum liquid levels.
• Adjustable sensitivity: ability to adapt to different media and operating conditions.
• Two independent 16A contacts: versatility of applications – controlling pumps, alarms, etc.
• PZ2 float switch: compatibility with a popular standard of sensors (available separately).
• DIN 35 mm rail mounting: easy integration with existing electrical installation.
• Galvanic isolation of contacts: increased safety of use and protection against interference.
• Compact dimensions (3 modules): saving space in the switchgear cabinet.
• Possibility of connecting probes up to 100m long: flexibility in sensor placement.
• 4mm² screw terminals: secure electrical connections with appropriate current capacity.
• Wide operating temperature range (-25 ÷ 50 °C): possibility of use in various environmental conditions.