Gems LWC-720 is designed for boiler low-water cutoff protection, and offers the most compact internally mounting package for boiler and steam generators. In addition to the low level cutoff switch, the LWC-720 Series includes a high level switch, control logic and relay for pump-up control. For added safety, the sensor assembly incorporates redundant reed switches at the actuation level. The LWC-720 Series is ideal for R.O., distilled, or deionized water systems. Optional Features include: 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.
Internal Mounting
Includes Pump Control Switch
Logic and Relay
Meets CSD1 Requirements, U.L. Recognized "Limit Control"
Compact Size
Options Include: Manual Reset; Power Outage Feature; and Test Feature
Specifications
Sensor Type
Float Type
Sensitivity
10 K ohms
Enclosure
NEMA 1
Contact Design
1 Normally Open & 1 Normally Closed (non-powered)
Contact Rating
10 Amp Resistive 1/3 horsepower
Supply Voltage
120 VAC
Minimum Temperature
-40°F
Maximum Temperature
257°F
Primary Material Of Construction
Alloy
Stem Material
Brass, Stainless Steel
Float Material
Stainless Steel
Maximum Pressure
150
Mounting Configuration
Vertical
Controller Contacts
SPDT
Input
120 VAC
Mounting Size
1" NPT or 1 5/16"-12UNF-2A
Float Diameter
1"
Min. Liquid SG
0.67
Actuation Level
up to 46 7/8"
Switch Operation
Normally Open
Switch Type
SPST
Approvals
UL 353