Potter Amseco VSR-3 Vane Type Waterflow Alarm Switch with Retard, 3" Pipe Size (Replaces VSR-F)

  • JMAC SKU: POTTER-AMSECO-VSR3
$171.15
+ Free Shipping
In Stock
  • Expedited Shipping Available Expedited Shipping Available
  • Need it Tomorrow?
    Need it Tomorrow?
    Select the NEED IT FAST shipping option at checkout and a member of our team will contact you promptly with any available Expedited Shipping options once we receive your order.
JMAC_ID:
200013402
df_manual_boost:
2.20
The Potter Amseco VSR-3 is a vane-type waterow switch for use on wet sprinkler systems. It is UL Listed and FM Approved for use on steel pipe; schedules 10 through 40, size 3".

The VSR-3 may also be used as a sectional waterow detector on large systems and contains two single pole, double throw, snap action switches and an adjustable, instantly recycling pneumatic retard. The switches are actuated when a ow of 10 GPM (38 LPM) or more occurs downstream of the device. The ow condition must exist for a period of time necessary to overcome the selected retard period.

UPC: 785192013761.0
Also known as: PL-VSR3, VSR3

Technical Specifications:
  • Service Pressure: 450 PSI (31 BAR) - UL
  • Flow Sensitivity Range for Signal: 4-10 GPM (15-38 LPM) - UL
  • Maximum Surge: 18 FPS (5.5 m/s)
  • Contact Ratings: Two sets of SPDT (Form C), 10.0 Amps at 125/250VAC, 2.0 Amps at 30VDC Resistive, 10 mAmps min. at 24VDC
  • Conduit Entrances: Two knockouts provided for 1/2'" conduit


For more information about the Potter / Amseco VSR-3, please contact us.
  • NEMA 4 solid metal enclosure
  • Factory installed neoprene gasket
  • Visual switch activation
  • Field replaceable switches
  • Field replaceable retard
  • 0-90 second pneumatic retard
  • 450 psi system pressure rated
  • Synchronized switch action
  • No water to metal contact, eliminates any corrosion possibility
  • Separate isolated wiring chambers eliminate NEC questions regarding multi-voltage applications
  • Two ½” KOs for dual voltage applications
  • Pipe schedules 10-40, size 3”
  • Five year warranty (One year warranty on 10”)
  • Listings: UL, cUL, FM, CSFM, and NYMEA

2 Reviews

  • 5
    POTTER-AMSECO-VSR3

    Posted by 151222 on Jan 9th 2020

  • 5
    POTTER-AMSECO-VSR3

    Posted by 135720 on Dec 18th 2018