BENDER VEN420-D-1 Insulation monitoring device

BENDER VEN420-D-1: Product Details (Likely based on VME420 series)

Bender GmbH & Co. KG is a well-known German manufacturer specializing in electrical safety products, particularly for ungrounded IT systems (Isolated systems). Devices like the VEN420-D-1 typically fall 

into their range of insulation monitoring devices (IMDs) or residual current monitoring devices (RCMs).

General Characteristics and Purpose:

• Function: The primary function of such devices is to monitor the insulation resistance between live conductors and earth in electrical systems. In IT systems, this is crucial for early detection of insulation

• faults, preventing electrical shocks, and ensuring system availability. They can also monitor for over/undervoltage and over/underfrequency.

• Application: These devices are commonly used in critical applications where high reliability and continuous operation are essential. This includes:

• Hospitals and medical facilities (especially operating rooms)

• Industrial automation

• Data centers

• Power generation and distribution

• Marine and offshore applications

• Renewable energy systems (e.g., solar, wind)

• Safety: By continuously monitoring insulation levels, they provide an early warning of potential hazards before a full fault occurs, allowing for proactive maintenance and preventing unexpected downtime

• or dangerous situations.

• Operation: They typically work by injecting a small measuring current into the system and evaluating the resulting voltage or current to determine the insulation resistance. If the resistance falls below a

• pre-set threshold, an alarm is triggered.

• Key Features (Likely for VEN420-D-1, based on VME420):

• Voltage Monitoring: Capable of monitoring nominal voltages (e.g., 230V, with operating ranges like 196-253V).

• Frequency Monitoring: Monitors system frequency (e.g., 50Hz, with operating ranges like 47-53Hz).

• Measurement Principle: Often utilizes the AMP (Adaptive Measuring Principle) or similar advanced techniques for accurate and reliable measurements in various network types.

• Alarm Outputs: Typically includes relay outputs for alarm signaling (e.g., pre-alarm, main alarm) which can be connected to warning lights, audible alarms, or control systems.

• Communication Interfaces: Modern Bender devices often feature communication interfaces like Modbus, Ethernet, or USB for remote monitoring, data logging, and integration into building

• management systems.

• Display/Interface: May have an integrated display (LCD or LED) for local indication of measured values and status, along with pushbuttons for configuration.

• Mounting: Designed for DIN rail mounting in control cabinets.

To get precise details for "VEN420-D-1", you would need to consult the official Bender datasheet or product manual specifically for that part number, or contact Bender directly. It is likely a specific

 configuration or version of the broader VME420 series, indicating particular voltage ranges, alarm settings, or communication options.

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