Supply Voltage​

AC 16 to 72 V

DC 16 to 94 V

Frequency: 42 to 460 Hz

Response Sensitivity​

EDS function: 2 to 10 mA adjustable

EDS measuring range: 1.5 to 50 mA

RCM measuring range: 100 mA to 10 A

Measuring Channels​

12 channels per device

Up to 90 EDS devices on BMS bus

Up to 1080 monitored circuits

Scanning​

Parallel scanning of all channels

Full scan time: up to approximately 10 seconds in parallel-scan descriptions

Display​

Backlit graphical LCD

Local status viewing

Parameter configuration

Plain-text fault channel identification

Alarm Outputs​

2 common alarm relays, changeover contacts

12 channel alarm contacts, normally open

Relay rating: up to 5 A at 230 VAC depending on utilization category

Memory​

300 event records with date and time

Fault memory selectable latching or non-latching

Communication​

RS-485

BMS protocol

Address range 1 to 90

Monitoring Functions​

CT connection monitoring

Wire-break detection

External test button support

External reset button support

Mechanical​

DIN-rail mounting

Polycarbonate housing

Internal electronics IP30

Terminals IP20

Weight: less than 360 g

Standards​

IEC 61557-8

IEC 61557-9

IEC 61326-2-4

DIN EN 60664-1

Application Scenarios​

Industrial IT power systems

Medical IT systems

Operating rooms

ICU power systems

Marine distribution

Offshore platforms

Data centers

Photovoltaic DC systems

Power plant auxiliary systems

Working Principle​

When an insulation fault occurs, the insulation monitor injects a locating current. Measuring current transformers on each branch detect the current. The EDS460-D-1 evaluates the signals, identifies the faulty circuit, activates the corresponding alarm contact, and shows the result on the display.

Installation Requirements​

Mount on DIN rail inside a suitable enclosure.

Install measuring current transformers on each monitored feeder.

Connect CT wiring according to Bender wiring rules.

Use shielded RS-485 cable in noisy environments.

Confirm supply voltage matches AC/DC rating.

Usage Notes​

Do not test insulation while critical loads are unprotected.

Verify CT orientation during commissioning.

Check CT connection alarm before relying on fault location.

Reset fault memory after corrective maintenance.

Keep BMS termination correct on the RS-485 bus.