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Dwyer L10-B-3-B Level Switch, Brass, 1"NPT Max.Press. 250 Psig


Your Price $115.00 USD
Inventory 2 to 3 Weeks


  • Wide media compatibility is assured with a choice of brass or stainless steel bodies and external tees; polypropylene or stainless steel floats.
  • Two basic configurations are offered; with 1" NPT male threads for direct side mounting through a half coupling or with factory installed tee for external mounting.
  • Features a hermetically sealed, magnetically actuated SPST REED switch which is encapsulated in a polypropylene housing.
  • Units are quickly and easily adjusted for your choice of normally open or normally closed operation thanks to a unique patented design.
  • Just loosen two screws and instantly slide the switch assembly to the action required. N.O. and N.C. markings are clearly visible. This feature also speeds switch replacement if damage occurs.
  • Three types of floats are offered to accommodate liquids with specific gravities as low as 0.5; maximum pressures to 2000 psig (137.8 bar).
  • Wire leads are 22 AWG X 18" (460 mm) and exit the switch assembly through 1/8" male NPT threads.
  • These controls are UL recognized and CSA listed.
  • Service: Compatible liquids.
  • Wetted Materials: Float: Solid Polypropylene or 304 SS; Body: Brass or 303 SS; Magnet: Ceramic; External Float Chamber (Tee): None, brass or 304 SS; Other: Lever Arm, Pin, Spring, etc.: 301 SS.
  • Temperature Limit: 200°F (93°C).
  • Pressure Limit: See Supplier PDF Below.
  • Switch Type: SPST hermetically sealed REED switch. Field adjustable for normally open or normally closed.
  • Electrical Rating: 1.5A @ 24 VDC resistive, 0.001A @ 200 VDC resistive, 0.5A @ 125 VAC.
  • Electrical Connection: 22 AWG, 18" (460 mm) long.
  • Conduit Connection: 1/8" male NPT.
  • Process Connection: 1" male NPT standard on models without external float chamber. Change 3 in model number to 4 for 1-1/4", to 5 for 1-1/2", or 6 for 2". 1" female NPT on models with external float chamber.
  • Mounting Orientation: Horizontal with index arrow pointing down.
  • Weight: Approximately 9 oz (0.255 kg) without external float chamber, 2.25 lb (1.02 kg) with external float chamber.
  • Specific Gravity: See Supplier PDF Below.
  • Agency Approvals: UL and CSA.
  • Switch Enclosure: Polypropylene.
Calibration Lab

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