IRDH275BW-435 BENDER Central control module

Description

IRDH275BW-435 BENDER Central control module

Product Dimensions：

Product Description

The IRDH275BW-435 utilizes the patented AMP Plus measurement principle, which allows it to monitor modern power systems with high leakage capacitances, such as those containing variable frequency drives (VFDs) and power converters. It provides a continuous readout of the insulation resistance and allows for two separately adjustable response values (ALARM 1 and ALARM 2). This specific model is designed for high-reliability industrial environments where maintaining system uptime is critical.

Product Parameters

Product Advantages

• High Adaptability: The AMP Plus technology automatically adapts to the network leakage capacitance, ensuring accurate measurements even in complex electrical environments with significant electronic noise.

• Predictive Maintenance: By detecting gradual insulation degradation, it allows operators to schedule repairs before a full ground fault shuts down the system.

• Universal Application: Suitable for both AC and DC systems, including those with rectifiers or thyristor-controlled drives.

• Detailed Information: The LC display provides real-time resistance values, making it easier for technicians to assess the “health” of the electrical system at a glance.

• History Memory: It includes a fault memory function to store previous alarm events for troubleshooting.

Important Considerations

• IT System Only: This device is exclusively for use in unearthed (IT) systems. It should not be used in grounded (TN or TT) systems.

• Connection Sequence: Ensure the connection to the ground (PE) is solid and low-impedance to ensure measurement accuracy.

• High Voltage Testing: Before performing high-voltage or dielectric tests on the monitored system, the IRDH275BW-435 must be disconnected to prevent damage to the internal sensing circuitry.

• Configuration: The response values ($R_{an}$) should be set based on the specific insulation characteristics of the facility to avoid nuisance alarms while maintaining safety standards.

Product Applications

• Industrial Manufacturing: Used in continuous process industries (e.g., chemical, glass, or steel) where an unexpected shutdown due to a ground fault would be extremely costly.

• Renewable Energy: Monitoring solar PV arrays or wind turbine control systems where DC and AC components coexist.

• Marine and Offshore: Essential for shipboard power systems to ensure electrical safety and continuity of service in harsh maritime environments.

• Data Centers: Protecting critical power supply systems and UPS units to maintain 24/7 availability.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

Please make an inquiry for more models：