Eaton MTL FP32 fieldbus trunk and spur surge protection - DIN rail

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.

Fully automatic in operation, FP32 devices react immediately

to make sure that equipment is never exposed to damaging

surges between lines or the lines and earth (ground). Reacting

instantaneously, the FP32 redirects surges safely to earth and then

resets automatically.

DIN-rail mounting and a small footprint allow the FP32 to be

conveniently located near terminators and spur blocks, while plug

connectors for Trunk / spur cables and the earth (ground) & shield of

the cable make removing a device or re-patching a simple operation.

A 10 Year ‘No Fuss’ warranty is available, as standard, for the FP32.

so if a correctly connected device should fail for any reason, simply

return it for a free replacement.

The FP32 meets IEC 61158-2:2000 for 31.25kB/s systems such as

Foundation™ fieldbus, PROFIBUS-PA and WorldFIP.