Hazardous Area Detection

Galvanic Isolator Interface

Product Overview

The Pertronic Galvanic Isolator Interface (ISGAIFNZSSAP) connects a galvanically isolated detection circuit to a Pertronic conventional detection zone. The interface may be used with a conventional Pertronic fire alarm control panel (F1, F4, F16e), or a Pertronic loop responder.

The interface performs two functions:

  • Translates signals from intrinsically safe devices to trigger the appropriate response in a Pertronic conventional detection zone
  • Compensates for level changes introduced by the Galvanic Isolator

The Pertronic Galvanic Isolator Interface is compatible only with NZS 4512:2010 detection circuits. It does not support NZS 4512:1997 detection circuits.


  • Interfaces one conventional detection zone with a Pepperl + Fuchs KFD0-CS-Ex1.51P Galvanic Isolator connected to conventional detection devices
  • Suitable for Pertronic NZS 4512:2010 20 Volt (nominal) conventional circuits, including F1, F4, F16e, and Loop Responder
  • Powered from conventional zone +20 Volt dc output
  • Translates Orbis intrinsically-safe (IS) detector levels and MCP activation to Pertronic M-voltage levels
  • May be used with a mix of Orbis and System Sensor EIS series IS detectors
  • Works with normally-closed type intrinsically-safe MCPs (contact goes open when activated)
  • LED indications for NORMAL (green), ALARM (red), and DEFECT (yellow)
  • Label on the product shows connection diagram
  • Maintains the integrity of fire alarm control panel Earth-Defect supervision
  • On-board indicator shows current and historic defects
  • Missing 20 V, 0 V, or M causes a defect
  • Wiring open- or short-circuits between the Interface and the Galvanic Isolator trigger a Defect
  • 35 mm DIN-rail mounting


The Galvanic Isolator Interface does not support NZS 4512:1997 circuits. In these circuits, an open circuit in the detector cabling would trigger a (non-indicating) heat or MCP alarm condition at the panel.


WARNING: The information on this website must not be treated as complete instructions for the design, construction, installation, commissioning, or maintenance of systems in hazardous areas. Cabling and fire system devices in hazardous areas must be designed and installed by properly qualified persons, in accordance with all applicable standards and regulations.