LS-3 Series Single-Point Level Switch0 pages

Small Size – Engineered Plastics
LS-3 Series – Offers High Reliability, Compact Size
and Low Costs in NPT, Straight and Metric Threads
Ideal for shallow tanks or restricted spaces, or for any low-cost, high volume use.
LS-3 Series are available in FDA compliant materials, consult GEMS for details.

LEVEL SWITCHES – SINGLE POINT

Polysulfone Float

Polypropylene Float
(Hollow)

Polypropylene Float
(Solid)

For water based liquids, with limited
use in oils and chemicals.

Features a low specific gravity float
offering broad chemical compatibility.

With Polypropylene stem and
float, switch offers broad chemical
compatibility.

Buna N Float

ALL-PVDF

New 3/4˝ Polypropylene
Float

FDA

FDA
Wetted materials of
construction comply with
FDA food contact regulations.

Ideal for oils and fuels.

Stem and float of corrosion-resistant
PVDF for ultra-pure applications.

See next page for details.

Common Specifications

Approvals: .L. Recognized – File No. E45168; CSA Listed – File No. 30200. CE Declaration Available Upon Request.
U
NSF materials are NSF 169 Standard compliant. For NSF approved level switches contact Gems.
Switch SPST: 20 VA, 120-240 VAC. Units are shipped N.O. unless otherwise specified. Selectable, N.O. or N.C., by inverting float on unit stem.

Dimensions – 1˝ Float Models only

Alternate Mountings
3/8˝-16
Straight Thread

1/8˝ NPT
17/32˝
(13.4 mm)

2-3/32˝
(53.2 mm)

1/2˝ HEX

L1✝

1-9/16˝
(39.7 mm)

M12x 1.75
Straight Thread

3/8˝ – 16

L1= Actuation Level
(see chart below) 1/2˝ HEX

.390˝ REF.
(9.9mm)

.14˝
(2.6mm)

1˝
(25.4 mm)

1˝ DIA
(25.4 mm)

A-2

†

G1/8˝
1/8˝-28 BSP

Electrical
Termination

1/2˝
HEX

Lead Wires

Visit www.GemsSensors.com for most current information.

.475˝ REF.
(12mm)

.315˝ REF.
(8.0mm)
9/16˝
HEX

.14˝
(3.6mm)

Cable

5/8˝
HEX

.20˝
(5.1mm)

Cable

LS-3 Series / p1of3 / 30-JUL-14