The PGH471-23 is a locating current injector from Bender, part of the ISOSCAN® series. It generates a locating current signal in IT systems equipped with an insulation monitoring device (ISOMETER®) to enable automatic insulation fault location in conjunction with EDS series insulation fault locators. This model is designed for IT main circuits with a rated system voltage range of AC 3(N)AC 20…575 V / DC 20…500 V, 45…400 Hz.
Technical Specifications
· Order No.: B 9501 8006
· Rated system voltage (Uₙ): AC 3(N)AC 20…575 V / DC 20…500 V, 45…400 Hz
· Supply voltage (Uₛ): DC 77…286 V
· Locating current: Max. 25 mA / 10 mA (selectable)
· Clock pulse/interval: 2 s / 4 s
· BMS address range: 111…119
· Power consumption: ≤ 3 VA
· Alarm output: 1 N/O contact, AC 250 V / 5 A
· Protection class: Internal components IP30, terminals IP20
· Mounting: 35 mm DIN rail
· Operating temperature: –10 °C … +55 °C
· Storage temperature: –40 °C … +70 °C
· Weight: ≤ 350 g
Key Features
· Locating current generation: Generates a system voltage‑dependent locating current signal for insulation fault location
· Locating current selection: Selectable via DIP switch (25 mA or 10 mA)
· Start/Stop button: Built‑in Start/Stop button on the front panel to activate or deactivate insulation fault location
· LED status indication: Power ON LED, RS‑485 active LED, positive/negative test cycle alarm LEDs
· Alarm relay: 1 potential‑free N/O contact for indicating active insulation fault location
· Control inputs: 3 control inputs (IN1, IN2, IN3) for external start, single‑shot location and inhibit functions
· RS‑485 communication: Supports BMS protocol, max. communication distance 1200 m
· Master/Slave mode: Configurable via DIP switch
Typical Applications
· Insulation fault location in IT main circuits: Used together with EDS460/490 series for automatic insulation fault location in main circuits
· Use with ISOMETER®: Used in IT systems equipped with an insulation monitoring device
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