3-phase relay, emergency, voltage monitoring, sequential U 304-576VAC RM22TR33

3-Phase Monitoring Relay – Reliable Network Monitoring

This Harmony RM22-TR33 control relay is an advanced device designed to monitor parameters in 3-phase networks with voltages ranging from 304 to 576 V AC. Its main task is to ensure the safety and continuity of the installation by controlling voltage, phase sequence, and detecting phase failure. Thanks to its compact dimensions (22.5 mm width), it is ideal for mounting on a DIN rail, saving valuable space in control cabinets.

Functionality and Application

The RM22TR33 relay offers comprehensive protection of the electrical installation, reacting to various irregularities. It controls not only the presence of voltage in each phase, but also its value and the order of the phases. The phase failure detection function allows for quick detection of power supply problems, and overvoltage and undervoltage control protects against damage caused by unstable voltage. Adjustable time delays (0.1 - 30 seconds) allow you to adapt the relay's response to specific application requirements.

The device finds application in a wide range of industrial and construction installations, such as:

• Lifts and cranes
• Packaging machines
• HVAC systems (heating, ventilation, air conditioning)
• Elevators and conveyors
• General industrial automation

Characteristics and Benefits

• Versatile protection: Voltage, phase sequence, phase failure, overvoltage and undervoltage control in one device.
• Compact dimensions: 22.5 mm width allows for efficient use of space in control cabinets.
• Adjustable time delays: Possibility to adapt the relay's response to specific application needs (0.1 - 30 seconds).
• Easy installation: Screw connection ensures quick and secure wiring.
• High reliability: Ensures long-lasting and trouble-free system operation.
• Diagnostics: Enables quick identification of faults thanks to the diagnostic button and sealed cover protecting the settings from interference.
• Wide voltage range: The relay operates in the range of 304 to 576V AC, making it a universal solution for many installations.

The RM22TR33 relay is a solid and reliable solution for professionals looking for comprehensive protection of their electrical installations and for end-users who want to ensure safe and stable operation of their devices.