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Site Updated October 16, 2016

* * * Sensata > Products > Klixon Brand > Thermostats > Precision Thermostats >

Klixon® 7BT2 Series Thermostats
30°F to 400°F, High Capacity, ½"


High current capacity, environmentally sealed
Normally open or normally closed
Pre–set, non–adjustable calibration
Max resistive load: 15 amp
Operating temperature range: 30°F to 400°F (-1.1°C to 204.4°C)
UL & Canadian-UL (UL File #34618)
DEKRA (Formerly known as KEMA) (ENEC), file #2018218.03

The Klixon 7BT2 thermostat is a snap–acting disc type control designed to provide crisp, positive switching action. The bimetal disc and electrical contacts are enclosed in a stainless steel cup. The 7BT2 is available in a variety of configurations, making it a versatile candidate for your thermal protection needs.

All 7BT2 thermostats are supplied with single–pole, single–throw switching that can be constructed as either normally open or normally closed. For more information, see the page of free drawings available for download.

Ratings for 7BT2
Agency
Max. Voltage
Max. Current
Non–inductive
Max. Temp.
Cycles
UL
120 VAC
10 A
400°F
30,000
UL
240 VAC
10 A
400°F
30,000
UL
277 VAC
7 A
400°F
30,000
UL / UL–C
120 VAC
10 A
400°F
100,000
UL / UL–C
240 VAC
10 A
400°F
100,000
UL / UL–C
277 VAC
7.2 A
400°F
100,000
KEMA
240 VAC
10 A
420°F
100,000

Performance

Contact Ratings (Resistive) Based on standard differential
120 VAC
240 VAC
10 amps
10 amps

Characteristics
Dielectric Strength
1500 VAC, rms, 60 cycles for 1 minute, terminal to case
Ambient Temperature Range
-40°F to +464°F (-40°C to +240°C)
Operating Temperature Range
+30°F to 400°F (-1.1°C to +204.4°C)

Operating Temperature Dash Number

Dash
Operating
Temperature
Differential
Tolerance
#
°F
°C
°F
°C
±°F
±°C
*
30
-1.1
20
11.1
5
2.8
*
40
4.4
20
11.1
5
2.8
*
50
10.0
20
11.1
5
2.8
*
60
15.6
20
11.1
5
2.8
*
70
21.1
20
11.1
5
2.8
*
80
26.7
20
11.1
5
2.8
*
90
32.2
20
11.1
5
2.8
*
100
37.8
20
11.1
5
2.8
Dash
Operat. Temp.
Differential
Tolerance
#
°F
°C
°F
°C
±°F
±°C
*
110
43.3
20
11.1
5
2.8
1
120
48.9
20
11.1
5
2.8
2
125
51.7
20
11.1
5
2.8
3
130
54.4
20
11.1
5
2.8
4
135
57.2
20
11.1
5
2.8
5
140
60.0
20
11.1
5
2.8
6
145
62.8
20
11.1
5
2.8
7
150
65.6
20
11.1
5
2.8
Dash
Operat. Temp.
Differential
Tolerance
#
°F
°C
°F
°C
±°F
±°C
8
155
68.3
20
11.1
5
2.8
9
160
71.1
20
11.1
5
2.8
10
165
73.9
20
11.1
5
2.8
11
170
76.7
20
11.1
5
2.8
12
175
79.4
20
11.1
5
2.8
13
180
82.2
20
11.1
5
2.8
14
185
85.0
20
11.1
5
2.8
15
190
87.8
20
11.1
5
2.8
Dash
Operat. Temp.
Differential
Tolerance
#
°F
°C
°F
°C
±°F
±°C
16
195
90.6
20
11.1
5
2.8
17
200
93.3
20
11.1
5
2.8
40
315
157.2
40
22.2
12
6.7
18
205
96.1
30
16.7
8
4.4
19
210
98.9
30
16.7
8
4.4
20
215
101.7
30
16.7
8
4.4
21
220
104.4
30
16.7
8
4.4
22
225
107.2
30
16.7
8
4.4
Dash
Operat. Temp.
Differential
Tolerance
#
°F
°C
°F
°C
±°F
±°C
23
230
110.0
30
16.7
8
4.4
24
235
112.8
30
16.7
8
4.4
25
240
115.6
30
16.7
8
4.4
26
245
118.3
30
16.7
8
4.4
27
250
121.1
30
16.7
8
4.4
28
255
123.9
30
16.7
8
4.4
29
260
126.7
30
16.7
8
4.4
30
265
129.4
30
16.7
8
4.4
Dash
Operat. Temp.
Differential
Tolerance
#
°F
°C
°F
°C
±°F
±°C
31
270
132.2
30
16.7
8
4.4
32
275
135.0
30
16.7
8
4.4
33
280
137.8
30
16.7
8
4.4
34
285
140.6
30
16.7
8
4.4
35
290
143.3
30
16.7
8
4.4
36
295
146.1
30
16.7
8
4.4
37
300
148.9
30
16.7
8
4.4
38
305
151.7
40
22.2
12
6.7
Dash
Operat. Temp.
Differential
Tolerance
#
°F
°C
°F
°C
±°F
±°C
39
310
154.4
40
22.2
12
6.7
41
320
160.0
40
22.2
12
6.7
42
325
162.8
40
22.2
12
6.7
43
330
165.6
40
22.2
12
6.7
44
335
168.3
40
22.2
12
6.7
45
340
171.1
40
22.2
12
6.7
46
345
173.9
40
22.2
12
6.7
47
350
176.7
40
22.2
12
6.7
Dash
Operat. Temp.
Differential
Tolerance
#
°F
°C
°F
°C
±°F
±°C
*
360
182.2
40
22.2
12
6.7
*
370
187.8
40
22.2
12
6.7
*
380
193.3
40
22.2
12
6.7
*
390
198.9
40
22.2
12
6.7
*
400
204.4
40
22.2
12
6.7
Consult Sensata Technologies if desired operating temperature does not appear on table.

Configurations

Our most common configurations are depicted below, but many other styles are available. The 7BT2 can be custom packaged to meet your specific design requirements.

Configuration Options - Custom configurations are available
Terminals
A = Solder Type, Flat
B = 3/16 QC, outset at 90°
C = Weld Type, Flat
D = Weld Type, outset at 90°
F = ¼ QC, outset at 90°
G = ¼ QC, Flat
Mounting Style
2 = No Mounting
3 = Loose Bottom Bracket
4 = Fixed Top Flange
6 = 6-32 x .187 stud
Wire Leads
Standard wire is 18 gauge stranded, tinned copper wire with black 0.31" PVC insulation (600V, 105°C). Standard lengths are shown below, but other lengths are available upon request.
1 = 6"
2 = 12"
3 = 18"
4 = 24"


Below is a sample of possible mounting style configurations.
Any terminal style may be matched with any mounting style.
* * *
Klixon
Precision Thermostats

Qualifications
UL, Canadian-UL and KEMA (ENEC) Recognized




Drawing

Part Numbering System

A complete 7BT2 part number is constructed using the part
numbering code below:

Codes for the 7BT2

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