Voltage monitoring relay, multifunctional, 300 - 500 V AC EMR6-AW500-D-1 184764

Multifunctional voltage monitoring relay

The EMR6-AW500-D-1 relay is a universal device designed for comprehensive monitoring of electrical network parameters. It provides protection for installations against the effects of improper operating conditions, such as overvoltage, undervoltage, phase asymmetry, phase failure, or incorrect phase sequence. The device finds application in both industrial installations and commercial and residential buildings. It is a replacement for the EMR5-AW500-1-D relay (cat. no. 134224), offering extended functions and increased reliability.

Features and application

The EMR6-AW500-D-1 is distinguished by a wide range of operating voltages (300…500 V AC) and the ability to monitor three-phase networks. It has two changeover contacts, allowing for flexible configuration of control and signaling circuits. Thanks to its compact dimensions (22.5 x 85.6 x 103.7 mm) and the possibility of mounting on a DIN rail, it can be easily integrated with existing automation systems. The device is particularly useful in applications requiring high reliability and precise monitoring of power supply parameters, such as:

• Electric motor protection
• Monitoring the power supply of critical devices
• Automatic emergency shutdown systems
• Protection against damage caused by voltage fluctuations
• Power quality control in distribution networks

Advantages and benefits

• Versatility: Monitors a range of electrical network parameters – phase sequence, phase failure, undervoltage, overvoltage and phase asymmetry.
• Signaling: Built-in LEDs indicate the device's operating status and detected irregularities (supply voltage, relay status, alarms).
• Durability: High quality workmanship guarantees long-lasting and trouble-free operation of the device. Mechanical endurance to switching cycles is 30 x 10⁶ cycles.
• Safety: Provides effective protection of electrical installations and connected devices against damage caused by incorrect power supply parameters.
• Easy installation: Compact dimensions and the possibility of mounting on a DIN rail facilitate integration with existing automation systems.
• Wide voltage range: Operation in the range of 300…500 V AC allows for use in various types of electrical installations.
• Time adjustment: The ability to adjust time delays for activation and return increases the flexibility of configuring the device to specific application requirements (range 0.1 - 30 s).

Additional information: the device has a protection class of IP20 for terminals and IP50 for the housing. The screw connection used ensures secure and durable electrical connections.