The insulation fault locator EDS151 in conjunction with the A-ISOMETER® iso-MED427P, the automatic transfer switching device ATICS or the locating current injector PGH474, are designed for insulation fault location in unearthed power supplies (IT systems). The locating current pulse generated by the iso-MED427P, ATICS or PGH are detected using the integrated measuring current transformers and evaluated by the insulation fault locators. The integration of six measuring current transformers in an EDS151 permits all current-carrying conductors of an outgoing line to be routed through. The response time for an alarm message inclusively indication on the respective display device is max. 8 s (e.g. MK2430).

A total of 88 EDS151 devices can be connected via an RS-485 interface (BMS protocol). Hence, up to 528 circuits can be monitored. Activities on the BMS bus are indicated by an alarm LED.

• Insulation fault location in AC, AC/DC and DC-IT systems
• 6 measuring channels with measuring current transformer per EDS151
• Up to 528 measuring channels can be combined by the BMS bus in the IT system being monitored: 88 x 6 measuring channels
• Response sensitivity 0.5 mA

• Insulation fault location in AC, AC / DC and DC IT systems