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Klixon 5BT Series |
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Related |
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Common Applications of 5BT Precision Thermostat
- Data Processing Equipment
- Computers
- Electronic Equipment
- Communication Equipment
- Cooling Systems
- Heating Systems
- And More!
Construction
The single pole, double throw construction instantly switches loads from one terminal to the other. This is accomplished through the temperature sensitive, actuating element — a snap–action, bimetal disc. This in turn activates a snap–acting switching mechanism. As the temperature reaches a predetermined point, the disc snaps to its reverse curvature, producing the crisp, positive switching action inherent to Klixon thermostats. This feature assures reliable, consistent operating temperatures over long cycle life with a minimum of electromagnetic interference. |
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Sensata > Products > Klixon Brand > Thermostats > Precision Thermostats >
Klixon® 5BT Series Thermostats
-65°F to 400°F, SPDT, Welded, Hermetically Sealed ½"
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Single pole, double throw (SPDT) |
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Hermetically sealed |
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Vacuum baked and back–filled with nitrogen |
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High resistance to shock and vibration |
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Preset, non–adjustable calibration |
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Qualified to MIL-PRF-24236 /24 |
The Klixon 5BT series thermostat
is a high reliability, hermetically sealed thermal switch. The single pole, double throw
design allows versatility and economy in providing two functions within the same device.
Typically these Klixon switches are used to control and indicate at a preset temperature.
One pole can control a cooling fan and the other pole can indicate impending danger.
The 5BT thermostat is the ideal choice where quality and reliability in a double throw device are critical. For more information, see the page of drawings available.
Performance
Contact Ratings (Resistive) Based on standard differential |
30 VAC/DC / 125 VAC |
Life Cycles |
2.0 Amps |
100,000 cycles |
3.0 Amps |
50,000 cycles |
Characteristics |
Switch Action |
SPDT (snap–action) |
Contact Resistance |
0.050 ohms maximum per MIL-STD-202, Method 307 |
Dielectric Strength |
1250 VAC, rms, 60 cycles for 1 minute, terminal to case per MIL-STD-202, Method 301 |
Insulation Resistance |
100 megohms min. at 500 VDC |
Vibration Resistance |
10-2000 Hz, 10G, per MIL-STD-202, Method 204, Condition D |
Shock Resistance |
60G, 11 milliseconds, per MIL-STD-202, Method 213 |
Acceleration |
60G |
Hermeticity |
1 X 10-8
atm cc/second maximum per MIL-STD-202, Method 112, Condition C |
Salt Spray Resistance |
Per MIL-STD-202, Method 101, Condition B, 5% solution |
Humidity |
MIL-STD-202, Method 103, Condition A |
Sand and Dust |
MIL-STD-202, Method 110, Condition A |
Weight (average) |
Basic Unit: 6.0 grams
With bracket: 7.0 grams |
Ambient Temperature Range |
-65°F to 450°F, (-53.9°C to +232.2°C)
Maximum ambient exposure while in the closed position is 200°F above contact closing temperature. |
Operating Temperature Range |
-65°F to 400°F, (-53.9°C to +204.4°C) |
Operating
Temperature |
Differential |
Tolerance |
°F |
°C |
°F |
°C |
±°F |
±°C |
-65 |
-53.9 |
30 |
16.7 |
10 |
5.6 |
-40 |
-40.0 |
30 |
16.7 |
10 |
5.6 |
-15 |
-26.1 |
30 |
16.7 |
10 |
5.6 |
0 |
-17.8 |
20 |
11.1 |
8 |
4.4 |
10 |
-12.2 |
20 |
11.1 |
8 |
4.4 |
20 |
-6.7 |
20 |
11.1 |
8 |
4.4 |
30 |
-1.1 |
20 |
11.1 |
8 |
4.4 |
40 |
4.4 |
20 |
11.1 |
8 |
4.4 |
Operat. Temp. |
Differential |
Tolerance |
°F |
°C |
°F |
°C |
±°F |
±°C |
50 |
10.0 |
20 |
11.1 |
8 |
4.4 |
60 |
15.6 |
20 |
11.1 |
8 |
4.4 |
70 |
21.1 |
20 |
11.1 |
8 |
4.4 |
80 |
26.7 |
20 |
11.1 |
8 |
4.4 |
90 |
32.2 |
20 |
11.1 |
8 |
4.4 |
100 |
37.8 |
20 |
11.1 |
8 |
4.4 |
110 |
43.3 |
20 |
11.1 |
8 |
4.4 |
120 |
48.9 |
20 |
11.1 |
8 |
4.4 |
Operat. Temp. |
Differential |
Tolerance |
°F |
°C |
°F |
°C |
±°F |
±°C |
130 |
54.4 |
20 |
11.1 |
8 |
4.4 |
140 |
60.0 |
20 |
11.1 |
8 |
4.4 |
150 |
65.6 |
20 |
11.1 |
8 |
4.4 |
160 |
71.1 |
20 |
11.1 |
8 |
4.4 |
170 |
76.7 |
20 |
11.1 |
8 |
4.4 |
180 |
82.2 |
20 |
11.1 |
8 |
4.4 |
190 |
87.8 |
20 |
11.1 |
8 |
4.4 |
200 |
93.3 |
20 |
11.1 |
8 |
4.4 |
Operat. Temp. |
Differential |
Tolerance |
°F |
°C |
°F |
°C |
±°F |
±°C |
210 |
98.9 |
20 |
11.1 |
8 |
4.4 |
220 |
104.4 |
20 |
11.1 |
8 |
4.4 |
230 |
110.0 |
20 |
11.1 |
8 |
4.4 |
240 |
115.6 |
20 |
11.1 |
8 |
4.4 |
250 |
121.1 |
20 |
11.1 |
8 |
4.4 |
260 |
126.7 |
20 |
11.1 |
8 |
4.4 |
270 |
132.2 |
20 |
11.1 |
8 |
4.4 |
280 |
137.8 |
20 |
11.1 |
8 |
4.4 |
Operat. Temp. |
Differential |
Tolerance |
°F |
°C |
°F |
°C |
±°F |
±°C |
290 |
143.3 |
20 |
11.1 |
8 |
4.4 |
300 |
148.9 |
20 |
11.1 |
8 |
4.4 |
310 |
154.4 |
25 |
13.9 |
10 |
5.6 |
320 |
160.0 |
25 |
13.9 |
10 |
5.6 |
330 |
165.6 |
25 |
13.9 |
10 |
5.6 |
340 |
171.1 |
25 |
13.9 |
10 |
5.6 |
350 |
176.7 |
25 |
13.9 |
10 |
5.6 |
375 |
190.6 |
35 |
19.4 |
12 |
6.7 |
400 |
204.4 |
35 |
19.4 |
12 |
6.7 |
Consult Sensata Technologies if desired operating temperature does not appear on table. |
Configurations
The switches are offered in several versions. Our most common configurations are depicted below, but many other styles are available.
Configuration Options - Custom configurations are available |
Terminals |
Flattened and Pierced (Flattened and pierced terminals can also be bent at right angles to reduce the overall height.) |
Pin-type (Leads can be welded to pin-type terminals to form an integral unit.) |
Wire Leads |
Standard 18 gauge, stranded wire leads are available in white or black Teflon insulation, in accordance with MIL-W-22759/11 (Teflon is a Trademark of E. I. Dupont de Namers and Co.) |
Other wires are available upon request. (Wire leads are not available for all styles.) |
Finish |
The standard plating is copper–nickel, but several other finishes are available. |
Mounting Flanges |
Top or bottom mounting flanges are available |
Custom Designs |
The 5BT device can be custom designed, such as packaging it into a probe thermostat. |
For more information, see the page of 5BT drawings available for download, contact us, contact a distributor, or make an online request for additional information.
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Qualifications
MIL-PRF-24236/24
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