Littelfuse VM500 3-Phase Voltage Monitoring Relay

Introduction

The Littelfuse VM500 3-Phase Voltage Monitoring Relay is a robust and versatile device designed to protect 3- and 4-wire 415V AC 50Hz systems. Its compact design allows for easy mounting on a DIN rail, making it an ideal choice for various applications where voltage monitoring is critical.

Part Description

The VM500 relay is engineered to monitor several critical electrical conditions, including undervoltage, overvoltage, phase loss, phase sequence, phase asymmetry, and neutral failure. It features adjustable trip thresholds, allowing users to customize the settings according to their specific requirements. The relay is equipped with LED indicators that provide clear visibility of any faults, ensuring quick diagnostics and response. With a durable construction and a range of operational capabilities, the VM500 is suitable for a wide array of applications.

Applications

• Water and waste management systems
• Irrigation pumps
• Lift stations
• Cooling towers
• Automation panels
• Rooftop AC units
• Supermarket refrigeration systems
• HVAC compressors
• Elevators and escalators
• Industrial machinery such as conveyors, CNC machines, and packaging lines

Industries

• Building systems
• Industrial automation
• Refrigeration and cooling
• Water and waste management
• Agriculture

Usage Ideas

1. HVAC System Protection: Integrate the VM500 relay into an HVAC system to monitor and protect against voltage fluctuations that could damage compressors and other critical components.
2. Industrial Machine Safety: Use the relay in a manufacturing setup to ensure that CNC machines and conveyors operate within safe voltage ranges, preventing costly downtime and equipment damage.
3. Water Management Systems: Implement the VM500 in irrigation and lift stations to monitor voltage levels, ensuring reliable operation and preventing failures in water distribution systems.

Conclusion

The Littelfuse VM500 3-Phase Voltage Monitoring Relay is an essential component for ensuring the safety and reliability of various electrical systems. With its advanced monitoring capabilities and user-friendly features, it serves as a vital tool in protecting equipment across multiple industries. Whether in building systems, industrial applications, or water management, the VM500 provides peace of mind through effective voltage monitoring.