Ground fault indicator / short-circuit
10 - 1 000 A | OPTO F+E 3.0 HORSTMANN


  • Displayed value:

    short-circuit, ground fault


The Opto F+E 3.0 by Horstmann is a Ground fault and short circuit indicator which is designed to do electrical isolation through the use of fiber optic cables. It comes with different indicators for different conditions. The unit uses 3 red LED for phase selective short circuit. On the other hand, it uses 1 yellow LED for earth fault indication. A variety range of current is used such as 400A, 600A, 800A and 1.000A for short circuit. For Earth fault, it uses 40A, 80A, 120A, 160A or 10A, 20A, 40A, 80A. The whole unit has a function testing using a test button. For reset option, it comes with automatic time reset of 1 h, 2 h, 4 h, 8 h. Plus, it is provided with manual reset for specific preference of the user.


Other HORSTMANN products

Short-Circuit and Earth Fault Indicators

Voltage Detectors and Detecting Systems

Grounding Devices and Accessories