Weidmuller ACT20X - Manual (Page 21)

Product Installation / Operation
1066540000/01/12.11 21
7. Product Installation / Operation
7.1 ACT20X-HDI-SDO (NAMUR Pulse Isolator)
7.1.1 Description
The pulse isolator ACT20X-HDI-SDO is a special signal isolator/converter for NAMUR sensor signals from
within Ex Zone 0. The product is able for an intrinsically safe operation of NAMUR sensors or for contacts
with floating and resistance circuits.
Transistor or relay outputs are available on the output side. A dual-channel version is optionally available.
The following NAMUR pulse isolators are available:
Order No. Type Description
8965340000 ACT20X-HDI-SDO-RNO-S NAMUR pulse isolator – relay NO
8965350000 ACT20X-HDI-SDO-RNC-S NAMUR pulse isolator – relay NC
8965360000 ACT20X-HDI-SDO-S NAMUR pulse isolator
8965370000 ACT20X-2HDI-2SDO-RNO-S 2-channel NAMUR pulse isolator – relay NO
8965380000 ACT20X-2HDI-2SDO-RNC-S 2-channel NAMUR pulse isolator – relay NC
8965390000 ACT20X-2HDI-2SDO-S 2-channel NAMUR pulse isolator