P-124

P

OMEGA’s TSW Series adjustable temperature switch

is perfect for applications that require an economical

solution to temperature control. The stainless steel

stem of the TSW Series switch is sealed and filled

with a gas that expands as process temperature rises.

A membrane within the switch body mechanically

causes closure of a 5 A Form “C” relay.

The 9.7 mm (0.38") diameter of the probe is

designed to mate with OMEGA’s standard 385 Series

thermowells for your most rugged applications.

Please visit omega.com.

Specifications

Temperature Range: -43 to 266°C (-45 to 510°F)

Temperature Sensor: Limit filled, saturated vapor sensor

Ambient Temperature Limits for Switch Body:

-55 to 105°C (-67 to 221°F)

Max System Temperature Capillary: 425°C (797°F)

Max System Pressure: 68.9 bar @ 425°C (1000 psi @ 798°F)

Electrical:

1 A Rated Contacts: 115 Vac/28 Vdc

5 A Rated Contacts: 250 Vac/28 Vdc

Max Switch Cycle Rate: Not to exceed 20 cycles per minute

Wiring Code: Black = common, white = normally open,

red = normally closed

Construction Materials

Wetted Parts:

Temperature Sensor: 316 SS

Non-Wetted Parts:

Body: 303 SS

Lock Ring: Zinc alloy, chromate finish

Switch Housing: Zinc alloy, chromate finish

Caps and Accessories: Black valox and brass terminals

Indicator: 303 SS

Indicator Ring: Black nylon

Wire Interface: 3-wire pigtail, furnished 300 mm (12") long,

20 AWG insulated with PVC, 300V rating

Weight: 113 g (0.25 lb)

To Order

Contact

Model

Temperature

Rating Repeatability

No.

Range °C/°F

(A)

°C/°F

TSW-11

-45 to -5 (-49 to 23)

1

±0.7 (1.3)

TSW-15

-45 to -5 (-49 to 23)

5

±0.7 (1.3)

TSW-21

-25 to 20 (-13 to 63)

1

±0.9 (1.6)

TSW-25

-25 to 20 (-13 to 63)

5

±0.9 (1.6)

TSW-31

-5 to 35 (23 to 95)

1

±0.8 (1.4)

TSW-35

-5 to 35 (23 to 95)

5

±0.8 (1.4)

TSW-41

25 to 70 (77 to 158)

1

±0.9 (1.6)

TSW-45

25 to 70 (77 to 158)

5

±0.9 (1.6)

TSW-51

55 to 105 (131 to 221)

1

±1.0 (1.8)

TSW-55

55 to 105 (131 to 221)

5

±1.0 (1.8)

TSW-61

80 to 125 (176 to 257)

1

±.9 (1.6)

TSW-65

80 to 125 (176 to 257)

5

±.9 (1.6)

TSW-71

115 to 175 (239 to 347)

1

±1.2 (2.2)

TSW-75

115 to 175 (239 to 347)

5

±1.3 (2.3)

TSW-81

175 to 230 (347 to 456)

1

±1.2 (2.1)

TSW-85

175 to 230 (347 to 456)

5

±1.2 (2.1)

TSW-91

200 to 265 (392 to 509)

1

±1.3 (2.4)

TSW-95

200 to 265 (392 to 509)

5

±1.3 (2.4)

Model No.

Description

3/4-385S-U21/2-304SS

Stainless steel thermowell

3/4-385S-U21/2-BRASS

Brass thermowell

SSLK-38-12

Stainless steel compression

fitting

BRLK-38-12

Brass compression fitting

Accessories

Comes complete with operator’s manual.

Other thermowells available;

Ordering Example: TSW-41, adjustable temperature switch with a

25 to 70°C (77 to 158°F) range, 1 A contact rating and

3/4-385S-U21/2-304SS, stainless steel thermowell.

U

Compact and Economical

U

Ideal for Economical Temperature

Switching Applications

U

External Temperature Scale Dial for

Easy Setpoint Adjustments (°F Only)

U

1 A Gold Contacts for TTl and

Dry Contact Closures

U

5 A Silver Contacts for Larger

Electrical Loads

U

Vibration Resistant

TSW-11 shown smaller

than actual size.

146.1

(5.75)

171.5

(6.75)

27.7 (1.09)

9.7 (0.38) Dia.

14.2

(0.56)

TSW Series

Adjustable Temperature Switches

Dimensions: mm (inch)