The EDS460-D-2 is an insulation fault locator from Bender, part of the ISOSCAN® series. It is designed for unearthed systems (IT systems) to locate insulation faults in AC, three-phase AC, and DC systems. After an ISOMETER® insulation monitoring device detects an insulation fault, the EDS460-D-2 works together with a locating current injector (PGH series) to automatically scan all branches and precisely identify the faulty circuit without interrupting the power supply.
Technical Specifications
· Response sensitivity: 2…10 mA (adjustable)
· Number of measuring channels: 12 channels, can connect 12 measuring current transformers
· Supply voltage: AC/DC 70…276 V, AC 42…460 Hz
· Scanning time: ≤ 10 seconds (all channels scanned in parallel)
· Alarm relays: Two independent changeover contacts, AC 250 V / 5 A
· Communication interface: RS-485, supporting BMS protocol
· Display: Graphic LCD display with backlight
· History memory: Stores event records with real-time clock
· Mounting: DIN rail (35 mm standard rail)
· Dimensions (W × H × D): 74 × 108 × 90 mm
· Compatible current transformers: CTAC, WR, WS series
· Standards compliance: IEC 61557-9
· Order number: B91080002
Key Features
· Insulation fault location – Used together with PGH series locating current injectors to automatically locate insulation faults in IT systems
· 12-channel monitoring – A single device can monitor 12 independent circuits; multiple devices can be networked via BMS bus
· Parallel scanning technology – 12 channels scanned simultaneously, completing all channel detection in as little as 10 seconds
· Adjustable sensitivity – Response value adjustable from 2…10 mA to adapt to system leakage capacitance
· Connection monitoring – Continuously monitors current transformer connection status to ensure measuring circuit integrity
· Event history storage – Built-in memory with real-time clock stores fault event records for easy fault tracing
· BMS bus communication – Integrated into the BMS bus via RS-485 interface, working together with ISOMETER® and other EDS devices
· Selectable fault memory – Optional fault memory mode; alarm status remains until manually reset
· External test/reset – Supports connection of external test and reset push-buttons
· Password protection – Prevents unauthorised changes to device parameters
Typical Applications
· Medical locations (operating theatres, ICUs)
· Industrial IT systems
· Data centres
· Marine and offshore applications
· Railway technology
· Power plants
· Photovoltaic systems
· Automated production lines
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