Bender isoEV425-D4-4+AGH420 Insulation Monitor + Coupler

Description

Bender isoEV425-D4-4+AGH420 Insulation Monitor + Coupler

Product Dimensions：

The Bender isoEV425-D4-4 combined with the AGH420 voltage coupling device is a specialized Insulation Monitoring Device (IMD) specifically designed for DC charging stations (EV fast charging) and high-voltage IT systems in electric vehicles.

Product Detailed Description

The isoEV425-D4-4 is an ISOMETER® that monitors the insulation resistance (R_f) of unearthed DC drive systems (IT systems). Because charging stations operate at high voltages that exceed the standard range of a standalone IMD, the AGH420 coupling active high-voltage attachment is required to extend the monitoring capability up to DC 1000 V.

Technical Parameters

Product Advantages

• Optimized for EV Charging: Specifically tuned to handle the high system leakage capacitances (C_e) typically found in electric vehicle battery circuits and charging cables.
• Rapid Response: Provides fast detection of insulation faults, which is critical for the safety of users handling high-voltage charging plugs.
• High Voltage Capability: The AGH420 allows the device to safely monitor systems up to 1000 V, covering the latest generation of 800V EV architectures.
• Automatic Adaptation: The device automatically adjusts to the system leakage capacitance, reducing the likelihood of false alarms during transient states.

Important Considerations (Precautions)

• Coupling Connection: The isoEV425 must be used with the AGH420 for voltages above its native rating. Never connect the isoEV425 directly to a 1000V DC bus without the coupling module.
• Single IMD Rule: In an IT system, only one insulation monitoring device may be active. If the vehicle has an onboard IMD, it must be deactivated when connected to a charging station equipped with an isoEV425 to avoid measurement interference.
• Wiring Polarity: Ensure correct polarity when connecting to the DC bus (L+ and L-). Incorrect wiring can lead to inaccurate measurements or hardware damage.
• Grounding: A high-quality functional earth (PE) connection is essential for the measurement principle (AMP – Adaptive Measuring Pulse) to function correctly.

Product Applications

• DC Fast Charging Stations (Level 3): Providing continuous insulation monitoring between the charger and the vehicle to prevent electric shock.
• Electric Vehicle Powertrains: Monitoring the integrity of the high-voltage battery and motor inverter circuits.
• Industrial DC Grids: Used in large-scale battery storage systems or DC-based microgrids.
• Testing Benches: Safety monitoring for high-voltage automotive component testing.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

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