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Up to 14 sensors may be connected to one PP20. PP20s can be wired continuously hot (line side) or on the switch leg (load side) without nuisance delays upon turn on. The PP20 transforms 120, 240 or 277 volts to Class II 15 VDC to power the remote sensors.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.