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Warrick LWC-700/720 Series Low Level Cut Off and Pump Up Control

Brand: Gems Sensors, Inc

Gems LWC-700 is designed for boiler low-water cutoff protection, and offers the most compact internally mounting package for boiler and steam generators. 

The 720 Series includes the low-water cutoff function and adds pump up control for more sophisticated and convenient automation. For added safety, the sensor assembly incorporates redundant reed switches at the actuation level. 

The LWC-700 and LWC-720 Series are ideal for R.O., distilled, or deionized water systems.
Features
  • Internal mounting
  • Meets CSD1 requirements
  • UL recognized "Limit Control"
  • Compact size
  • Options include: Manual reset, power outage feature and test feature
  • Power Outage feature allows for resets after nuisance power outages
  • Reset button feature to be used when device has been deactivated due to low water condition. A reset is activated only after water has returned to normal level

Specifications

Ambient Temperature Range

  • -40° to 66° C (-40° to 150° F)

Approvals & Certifications

  • UL Recognized Per UL 353, Limit Controls (For Supply Voltages of 120 Vac or Less)

Delay Time

  • 0.5 second on Rising Level

Electrical - Free Leads

  • Wire, 22 AWG Teflon

Electrical Connectors

  • 1/2” NPT Male

Electrical Contacts

  • Normally Closed
  • Normally Open

Electrical Rating

  • 1 A at 120, 208 / 240, 240 Resistive (66° C / 150° F)
  • 1/3 hp at 120, 208/240, 240 Vac
  • 10 A at 120 / 220/240 Vac Resistive (49° C / 120° F)

Environmental Protection

  • IP10
  • NEMA 1

Mounting Position

  • Vertical, J-Box Up

NPT Connection

  • 1” NPT Male

O-Ring Material

  • Viton

Pressure Rating

  • psi: 150 (kPa: 1,034, bar: 10.34)

Sensitivity

  • 10K

Sensor Circuit

  • Secondary Circuit: < 1 mA
  • Secondary Circuit: 2.3 Vac RMS

Stem Material

  • Brass
  • Stainless Steel

Switch Type

  • SPDT, Dry Contacts

Temperature Range

  • -18° to 151° C (0° to 305° F)
  • Maximum

Tolerance

  • Tolerence on Actuation Levels: ± 1/8” (3.2 mm)

UNF/UNC Connection

  • 1-5/16”-UNF Male

Wetted Materials

  • 316 Stainless Steel
  • Brass
  • Stainless Steel
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