National Instruments EIGHT CHANNEL SPST RELAY MODULE Manual Do Utilizador

© 2003 National Instruments Corp. All rights reserved.

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Product and company names mentioned herein are trademarks or trade names of their respective companies. 
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These operating instructions describe how to install and use the 
National Instruments cFP-RLY-421 relay module. For details on 
configuring and accessing the cFP-RLY-421 over a network, refer 
to the user manual for the FieldPoint network module you are 
using.

The cFP-RLY-421 is a Compact FieldPoint relay output module 
with the following features:

•

Eight single-pole single-throw (SPST) relay channels

•

Switching capacity 1.5 A at 35 VDC or 250 VAC

•

LED relay status indicators

•

Hot swappable

•

–40 to 60 °C operation

•

250 V

rms

 maximum isolation voltage

•

2,300 V

rms

 transient overvoltage protection

The cFP-RLY-421 is powered by the FieldPoint network module 
through the backplane bus. The cFP-RLY-421 is a high-power 
consumption module, which may limit the number of I/O modules 
that you can connect to a single network module.