Eaton F809F-Plus Diagnostic Module for FOUNDATION fieldbus™ H1

DIN-rail mounting, 20kA surge protection for fieldbus systems

• DIN-rail mounting for easy installation and automatic earthing (grounding)

• 20kA maximum surge current per line

• Plug connectors for quick and easy connection or rewiring

• Meets the requirements of IEC61158-2:2004 for Foundation™ fieldbus

• 10 year product warranty

The FP32 surge protection device prevents surges and transient

over-voltages, conducted along the Trunk or Spurs of fieldbus systems,

from damaging the associated electronics such as terminators, spur

blocks and the bus control equipment. The FP32 is designed to be

used at both ends of the Trunk where a Spur is connected, to safely

divert any surges to earth.

The multi-stage hybrid surge protection network at the heart of

the FP32. uses a combination of solid state electronics and a gas-filled

discharge tube (GDT) to provide surge protection up to 20kA. This

impressive surge protection circuit is designed to exhibit exceptionally

low line resistance and adds only a tiny voltage drop to the bus. As a

result, no matter how many FP32 devices are connected to a Trunk or

Spur the system will still be able to support up to 32 transmitters as

specified by IEC 61158-2.

In operation the FP32 device does not adversely affect the

performance or operation of the fieldbus or connected equipment,

it allows signals to pass with very little attenuation while diverting

surge currents safely to earth (ground) and clamping output voltage

to safe levels.