Level Sensors & Switches

LS-77700 Single-Point Level Switch

Part Number: 118126
LS-77700_117712
Image is of similar product

PRODUCT DESCRIPTION:

LS-77700 Series Single-Point Level Switches perform in liquids with specific gravities as low as 0.45; switches protrude into tank less than 3 inches (76 mm).

LEAD TIME:

10 days
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

  • Bent Stem / Side Mount Design
  • Specific Gravity as low as .45
  • Stainless Steel or Brass 
Sku
118126
Model
LS-77700
Sensor Type
Float Type
Primary Material Of Construction
Alloy
Wetted Materials
316 Stainless Steel, Buna N, PH-15-7-MO Stainless Steel
Stem Material
Stainless Steel
Float Material
Buna N
Float Diameter
1"
Actuation Level
2 3/8"
Min. Liquid SG
0.45
Maximum Pressure
300 psi
Minimum Temperature
-40°F
Maximum Temperature
300°F
Mounting Size
1/8" NPT Male
Mounting Style
Horizontal
Electrical Termination
24" Long, 22 AWG, Polymeric Leads
Switch Type
SPST (20 VA)
Switch Operation
Normally Open (Non-Reversible)
Input
N/A
Output
N/A
Approvals
UL Recognized, CE, ROHS

Reed Switch Protection

Format .pdf
Size 56 KB

Gems Sensors Instructions, Level Switches

Format .pdf
Size 553 KB

Gems Sensors Catalog, LS-77700

Format .pdf
Size 201 KB
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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.