Level Sensors & Switches

LS-74780 Single-Point Level Switch

Part Number: 74780
LS-74780_74780
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PRODUCT DESCRIPTION:

LS-74780 Series Single-Point Level Switch is ideal for restricted tank spaces, for use with aggressive fluids or ultra-pure liquids and when all-plastic material is desirable.

LEAD TIME:

In Stock
Lead Time

Lead-times apply to standard parts & configurations. Expedited shipments available by contacting factory. Lead-times may vary based on quantity and/or non-standard configurations.

CE ROHS Gems Compliant CSA

Features

  • Particularly well suited for rough service
  • Ideal for use in chemical and plating applications 
Sku
74780
Model
LS-74780
Sensor Type
Float Type
Primary Material Of Construction
Plastic
Wetted Materials
CPVC
Stem Material
CPVC
Float Material
CPVC
Float Diameter
1 1/2"
Actuation Level
3/4"
Min. Liquid SG
0.85
Maximum Pressure
15 psi
Minimum Temperature
-40°F
Maximum Temperature
180°F
Mounting Size
1/4" NPT Male
Mounting Style
Vertical
Electrical Termination
25" Long, 18 AWG, PVC Leads
Switch Type
SPST (20 VA)
Switch Operation
Normally Open (Reversible)
Input
N/A
Output
N/A
Approvals
CE, ROHS

Reed Switch Protection

Format .pdf
Size 56 KB

Gems Sensors Instructions, Level Switches

Format .pdf
Size 553 KB

Gems Sensors Catalog, Large Plastic Float Level Switches

Format .pdf
Size 1 MB
  • General Industry
  • General Industry - Alarm Panels
  • General Industry - Chemical Metering/Injection
  • General Industry - Environmental
  • General Industry - Laser Equipment
  • General Industry - Other
  • General Industry - Purifiers
  • General Industry - Service Cart
  • General Industry - Skid Manufacturer
  • General Industry - Tanks
  • General Industry - Tanks - Specialty Chem
  • Printers
  • Waster Water Applications
  • Water & Waste Water - Industrial Water Treatment
  • Water & Waste Water - Other
Is there a minimum current flow requirement for a standard 20VA reed switch?

Yes, very low currents (< 5ma) can prevent “cleaning” of the contacts or not have enough energy to maintain low contact resistance. 5ma is likely a good minimum for our standard 20 VA switch. But you also want enough voltage. Approximately, 5V, 5ma is a good minimum. For low current switching we recommend a 10 VA reed switch which can better handle lower loads. (1ma for example).

What is the life expectancy of a reed switch?

A reed switch is extremely rugged and designed to operate reliably for many years, under ideal conditions, up to about 2 million cycles. To achieve maximum service life, reed switches benefit from protected electrical supply.