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Power Pack, 120-347VAC, 20A Auxiliary Relay Pack

S120/277/347E-P Wattstopper
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WattStopper B347D-P Power Packs provide 24VDC operating voltage to all WattStopper 24VDC occupancy sensors and daylighting controllers. Auxiliary Relay Packs are similar to power packs, but only have an isolated relay and no transformer power supply.

Color Black


  • Fully self-contained transformer and relay
  • UL 2043 Plenum Rated
  • Snaps in for easy installation
  • Essential component for ceiling mounted occupancy sensor


General Info
Product Line Wattstopper
UPC Number 754182506040
Country Of Origin China


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Questions & Answers

would the S120/277/347E-P relay pack be the correct relay pack for use in combination with a power pack (say: Wattstopper BZ-150) to switch a 208V (2P, line-to-line) lighting load controlled by an occupancy sensor? or is a 2P power pack available?

Asked by: Thierry
The S120/277/347E-P relay pack can be used in combination with other power packs as well as the BZ150 but the power consumption is either 120/277 or 347 and if you are trying to switch to 208 volts this will require a contactor.
Answered by: Tier 1 Tech Support
Date published: 2022-06-06
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