Gems Sensors & Controls LS-270 Specifications

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1-1/4" DIA.

(31.75 mm)

5-3/32"

(129.4 mm)

1-1/2"

(38.1 mm)†

1-3/4"

(44.5 mm)

4-1/4"

(108 mm)

5/8" HEX

(15.9 mm)

1/4" NPT

27/32"

(21.4 mm)

1-7/8" DIA.

(47.6 mm)

4-1/4"

(108 mm)

1/4" NPT

1-1/16"

(27.0 mm)

1-1/4"

(31.8 mm)†

1-13/16"

(46.1 mm)

3-3/16"

(81.0 mm)

FLOAT

CUSHION

FLOAT

CUSHION

3/16" DIA.

(4.7 mm)

3-3/16"

(81 mm)

1-3/8" ± 1/4

"

(34.9 mm) †

2-19/32" DIA.

(66 mm)

9/32" DIA.

(7.1 mm)
2 HOLES

SLOSH
SHIELD
CUT
AWAY

2-9/16

"

(65 mm)

1-3/4"

(44.5 mm)

2-1/2"

(63.5 mm)

CLOSED

OPEN

TH800

Specialty Switches

GEMS Excels in Switches for Special Requirements

The products below are examples of the custom engineering GEMS can provide to meet specific
application needs. These units are ideal for use in oils and water.

LEVEL SWITCHES – SINGLE POINT

SeriesTemperature/
Level Switch

Level monitoring and
temperature switch in a
single unit. Intermediate
in size; single-setting
temperature sensor is in
bottom of stem.

Dimensions

TH800

LS-38760 Series –
Cushioned Float

Cushioned float and
switch for turbulent
liquids or excessive
vibration. Easily grounded.
Ideal for tank trucks,
construction equipment or
mobile applications.

LS-270 Series –
Bracket Mounting
Slosh Shield

U.L. Recognized – File No. E45168

Small, lightweight, and extremely stable in nonstatic,
highly contaminated liquids. Slosh shielding minimizes
effects of turbulence and helps prevent interference by
foreign material. Bracket-mounted to any convenient
surface.

Wire diagram on page B-21

†L1= Switch actuation level, nominal (based on a liquid specific gravity of 1.0).
LS-270 Series Note: Installed vertically with cable upward. Caution: Elastomer seals in the sensor and cable are subject to deterioration and aging, and
therefore need to be checked regularly. Life expectancy of seals varies with application.

How To Order – Select Part Number based on specifications required.

Material

Series

TH800
Temp./

Level

LS-38760 Aluminum Buna N S.S., Hysol .55

LS-270

Notes:

1. See “Electrical Data” on Page X-5 for more information.

2. Switches are not U.L. Recognized or CSA Listed.

3. See Page B-21 for thermostat ratings and wiring diagram. Other temperature settings are available; consult factory.

A-2 0

Stem and
Mounting

Brass Buna N

316 S.S.

Float

Buna N

Other

Wetted

Beryllium

Copper,

Hysol

Beryllium

Copper,
Copper

Nickel,

Polycarb.

304 S.S.

Min. Liq.

Sp. Gr.

.75

.55 -40°F to +140°F (-40°C to +60°C) 150

Operating Temperature

Water: to 180°F (82°C)

Oil: -40°F to +230°F (-40°C to +110°C)

-40°F to +180°F (-40°C to +82°C)

Pressure

PSI, Max.

150 20 VA, N.O.

150 20 VA, N.C. —

Visit www.GemsSensors.com for most current information.

Level
SPST

20 VA, N.O.

20 VA, N.C.

50 VA2, N.O.

50 VA2, N.C.

1

Switch

Temperature

N.C., open on

+150°F ±10°F, incr.

N.O., close on

+150°F ±10°F, incr.

—

3

Part

Number

57143

57144

38760

43765

43760

43980

43982