BENDER AGH420

BENDER AGH420 Product Details

The BENDER AGH420 is a coupling device primarily used in conjunction with BENDER ISOMETER® insulation monitoring devices, particularly the isoPV425 and isoCHA425HV series. Its main function is to enable the insulation monitoring of unearthed AC/DC systems with nominal voltages ranging from DC 0...1000 V and AC 0...690 V, depending on the specific ISOMETER® it is paired with.

Product Parameters:

The AGH420 itself does not have extensive parameters as it acts as an interface. Key specifications are tied to the ISOMETER® it supports. However, some general points include:

• Nominal System Voltage (with compatible ISOMETER®): DC 0...1000 V, AC 0...690 V

• Compatibility: Designed for use with ISOMETER® isoPV425 and isoCHA425HV series.

• Safety: Complies with relevant safety standards for electrical equipment.

• Mounting: Typically designed for DIN rail or screw mounting.

• Refer to the datasheet of the specific ISOMETER® used with the AGH420 for detailed technical parameters of the combined system, such as response time, alarm thresholds, and system leakage capacitance.

Product Advantages:

When used with compatible BENDER ISOMETER® devices, the AGH420 facilitates several advantages:

• Enables Insulation Monitoring: Allows for the continuous monitoring of insulation resistance in unearthed (IT) AC/DC systems.

• Early Fault Detection: Detects insulation faults at an early stage, preventing potential hazards and system downtime.

• Versatile Application: Supports a wide range of DC and AC voltage systems when paired with the appropriate ISOMETER®.

• Compatibility with Charging Standards: When used with the isoCHA425HV, it supports insulation monitoring for DC charging stations according to both CHAdeMO and CCS (Combined Charging System) standards.

• Adaptability to System Leakage Capacitance: Compatible ISOMETER® devices (like isoPV425) automatically adapt to the system leakage capacitance (up to 1000 μF).

• Comprehensive Measurement: Enables the measurement of nominal system voltage (RMS), DC voltages to earth, and system leakage capacitance (depending on the ISOMETER®).

• Alarm Signaling: Facilitates alarm signaling via LEDs and relay outputs on the ISOMETER® in case of insulation faults.

• Communication Interface: Often used with ISOMETERs that offer communication interfaces like RS-485 with Modbus RTU and other protocols for remote monitoring and diagnostics.

Precautions:

• Danger of Electric Shock: The AGH420 operates with high voltages (up to 1000 V DC). Ensure the system is de-energized before installation and connection. Follow all relevant safety regulations for working with electrical installations.

• Qualified Personnel: Installation, connection, and commissioning should only be performed by qualified electrical personnel who are familiar with the device and the relevant standards.

• Proper Combination: The AGH420 must be used with the specific ISOMETER® series it is designed for (isoPV425 or isoCHA425HV). Using it with incompatible devices can lead to improper functioning or damage.

• Temperature Limits: Refer to the technical data of the AGH420 and the connected ISOMETER® for operating temperature limits. Avoid using the device outside these specified limits.

• Secure Connections: Ensure all electrical connections are secure and properly tightened to prevent overheating and ensure reliable operation.

• Read the Manual: Always consult the operating manual of both the AGH420 and the connected ISOMETER® for detailed safety instructions, installation procedures, and operating guidelines.