Description

Klixon® thermostats have been in

production for over 50 years. The

20413, 20600, and 20650 series

thermostats are especially designed

ed for applications where space,

capacity and ease of assembly are

important production factors. They

are fixed-setting, snap-acting, auto-

matic or manual reset temperature

controls that are ideal for such

applications as: air conditioners,

heating and ventilating equipment,

vending machines, dryers, unit

heaters, tabletop appliances, etc.

All automatic series are available as

limit switches (open on tempera-

ture rise) or fdan switches (close

on temperature rise). Switch action

is SPST, SPDT, or DPST with auto-

matice reset types. Manual reset is

available as a limit switch in SPST

construction only.

The switch mechanism is actuated

by the Klixon snap-action, bimetal

disc which may be enclosed or

exposed. Enclosed disc devices are

particularly recommended for appli-

cations in which dust and lint are

prevalent in the environment.

Exposed disc types are used in

applications where a faster thermal

response to radiant heat is needed.

Contact parts are enclosed for both

disc types for protection against

contamination.

Mountings and Terminals

A variety of terminals and mounting

flanges are available to meet instal-

lation requirements of most

applications.

Flanges can be used for surface or

thru-wall mountings; or, thermostats

can be supplied without flanges for

well or cavity-type mountings.

Flange rotations are specified by

looking down on the terminals and

rotating the flange 30o, 45o, or

90o CW or CCW.

Flanges Available

• Small oval bottom flange

• Integral surface flange

• No flange cup

• 3/4” deep cup

• Special oval bottom flange

Electrical connections to the ther-

mostat must be tight; otherwise,

resistance in a loose connection may

cause sufficient temperature rise to

affect the performance of the ther-

mostat or damage the terminals or

the lead wire insulation.

Terminals Available

Quick connects are available in siver

flash or plain brass.

• 1/4”Quick connects 0o, 30o, 45o,

90o terminals are male spade type

.250” x .032” thick.

• Strap terminals for electric heat-

ing

• Brass screw terminals 0o, 45o

When screw terminals are specified,

washer head screws are supplied

unassembled. Assembled washer

head screws are available at extra

cost. Standard screw terminals have

8-32 NC-2 threads.

Temperaturre Settings,

Tolerances and Nominal

Differentials

Standard Tolerances

The ranges of temperature settings,

tolerances, and nominal differen-

tials shown below are available.

Differential is the difference

between opening and closing tem-

perature in oF. For example, a

thermostat which opens at 180oF

and closes at 140oF has a 40o

differential. (Lowest unit prices are

achieved by selecting differentials

in the 30oF to 59oF range). For

temperature settings and differen-

tials other than those shown,

please consult Marketing.

Manual Reset

Construction

There are two basic manual reset

constructions:

1) Manual Override – contracts can

be closed at any time after

device has actuated by depress-

ing reset button.

2) Trip-Free – contacts will remain

open after device has actuated

until bimetal disc resets, even if

reset button is depressed.

Agency Recognition

Klixon 206 Series Thermostats are

recognized by UL and CSA. Please

consult Marketing for international

approvals.

UL

Electrical Group

File No. E9977

U.S. Guide No. XAPX2

Canada Guide NO. XAPX8

HC&R Group

File NO. MP986

U.S. Guide No. MBPR2

Canada Guide No. MBRR8

For further information write or call:

Texas Instruments Incorporated

Commercial Sensors & Controls

Thermal Controls Marketing

34 Forest Street, MS 23-10

Attleboro, MA 02703-0964

Phone: (508) 236-3192

(508) 236-1894

Fax;

(508) 236-2349

or visit our website @: www.tisensors.com

Highest

Temperature

Setting

oF

Nominal

Differential

oF

Standard

Tolerances

Open

Close

oF

10 to 14*

15 to 29

30 to 59

60 to 150

10 to 29*

30 to 39

40 to 59

60 to 150

20 to 29

30 to 39

40 to 59

60 to 150

30 to 39

40 to 59

60 to 150

30 to 39

40 to 59

60 to 150

-10 to 80

81 to 200

201 to 250

251 to 300

301 to 350

**

±5

±6

±6

±7

±5

±5

±5

±6

±5

±5

±6

±7

±6

±7

±8

±7

±8

±9

±5

±6

±7

±8

±5

±6

±7

±8

±6

±7

±8

±9

±8

±10

±11

±10

±12

±13

• Available in SPST construction only.

SPDT thermostats must have 15o minimum differentials.

**20413 series – up to 300o

20600 series – up to 350o

20650 / 54 series – up to 300o; minimum

differential 30o.

Ambient Temperature

-40oF to +350oF

-40oC to +177oC