Relpol RPN-1VF-A400 3-Phase Monitoring Relay 3(N)400/230V AC 50/60Hz

The Relpol RPN-1VF-A400 is a professional 3-phase monitoring relay engineered for precise control and protection within industrial and electrical power systems. Designed to operate at a nominal voltage of 3(N)400/230V AC with a frequency of 50/60Hz, this device serves as a critical component for maintaining the integrity of three-phase networks. By continuously monitoring phase parameters, it helps prevent equipment damage caused by voltage irregularities, ensuring consistent operational safety and system stability.

Advantages

This monitoring relay offers high reliability and accuracy in detecting phase faults, which is essential for protecting sensitive electrical machinery. Its robust construction is tailored for demanding industrial environments, providing long-term performance and minimal maintenance requirements. The device simplifies the integration process into existing control panels, offering a compact solution that effectively manages power quality and prevents costly downtime in complex electrical installations.

Suitable for

• Industrial automation and control systems
• Protection of three-phase motors and pumps
• Electrical distribution boards and switchgear
• Monitoring power supply stability in commercial facilities

This relay is not suitable for single-phase power systems or applications requiring DC voltage monitoring. It should not be used in environments where the operating voltage or frequency deviates from the specified nominal values, as this may lead to incorrect operation or damage to the device.

Key specifications

• Nominal voltage: 3(N)400/230V AC
• Frequency: 50/60Hz
• Function: 3-phase monitoring
• Application: Industrial electrical control systems

The device should be installed by a qualified professional in accordance with local electrical regulations. It is typically mounted on a standard DIN rail within a control cabinet. Ensure that all wiring connections are secure and that the phase sequence and voltage levels match the device requirements before applying power to the system.

What to consider before purchase

• Verify that your network voltage matches the 3(N)400/230V AC specification.
• Ensure the device is compatible with your existing DIN rail mounting setup.
• Confirm that the frequency of your power supply is 50/60Hz.

Usage recommendations: Regularly inspect the relay for signs of wear or loose connections during routine maintenance of your electrical panel to ensure continued protection of your equipment.