NTE8065 thru NTE8242
Thermal Cutoff
(Thermal Fuse)
Description:
Twenty One Thermal Cut−offs (also known as Thermal Fuses) are now included in the NTE product line. They are minia-
ture, NON−RESETTABLE temperature sensitive devices designed to prevent appliances and electronic equipment from
overheating. NTE thermal cutoffs are UL and CSA listed.
Literally thousands of different applications have been devised for thermal−cutoffs, thus providing a large replacement
market. Such applications include:
• Hair Dryers
• Irons
• Electric Motors
• Microwave Ovens
• Toasters
• Refrigerators
• Hot Plates
• Window Fans
• Popcorn Poppers
• UPS
• Battery Chargers
• Glue Guns
• Coffee Makers
• Dishwashers
• And hundreds of others
The TCO (Thermal Cut−Off) responds to temperature by interrupting an electrical circuit when the operating and/or envi-
ronmental temperature exceeds the thermal rating of the device. This is accomplished when the internal organic pellet
experiences a phase change, allowing the spring activated contacts to permanently open the circuit.
Functioning
Holding
Maximum
Functioning
Holding
Maximum
Temperature Temperature Temperature
Temperature Temperature Temperature
NTE
Type No.
Diag.
No.
NTE
Diag.
No.
°C
°F
°C
°F
°C
°F
°C
°F
°C
94
°F
°C
°F
Type No.
8065
8070
8076
8081
8085
8090
8096
8098
8103
8108
8115
193
193
193
193
193
193
193
193
193
193
193
66
72
77
84
87
93
98
100
104
109
117
151
162
171
184
189
200
209
212
220
228
243
42
50
−
108
122
−
130
115
−
266
239
−
8118
8125
8139
8149
8167
8181
8182
8213
8226
8242
193
193
193
193
193
193
193
193
193
193
121
128
141
152
170
184
192
216
228
240
250
263
286
306
338
364
378
421
443
464
201
223
243
262
295
320
324
376
−
170
155
171
176
300
300
290
241
−
338
311
340
349
572
572
554
466
−
106
117
128
146
160
162
191
−
60
−
140
−
125
−
257
−
−
−
−
−
76
−
169
−
140
−
284
−
80
88
−
176
190
−
150
140
−
302
284
−
200
392
290
554
Electrical Rating
Volts
Electrical Rating
Volts
Interrupting
15A
25A RES
20A RES
Continuous
10A
16.7 RES
15A RES
Interrupting
125VA Pilot Duty
3A Motor Rating
Continuous
120/250 VAC
240 VAC
277 VAC
120−277 VAC
180 VAC
Diagram 193
FEATURES:
•
•
•
•
•
Maximum Current Rating: 15 Amps
Typical Opening Temperature Tolerance: +0°C, −5°C
18 Gauge Solid Copper Wire
3.220 (81.78) Max
Full 1 1/3 ” leads to fit all replacement configurations
All types meet the requirements of Underwriters
Laboratories Specifications, CSA, and VDE.
Each device comes packaged with 2 crimp splices for
solderless connection.
1.380 (35.0)
Case End
.457 (11.6) Max
1.383 (35.1) **
Epoxy End
•
NOTE: Tin plated lead
NOTE: Silver plated lead
S
S
S
S
S
UL File No. E49429
UL File No. E117626 (Guide # XCMQ2)
C−UL File No. E117626 (Guide # XCMQ8)
CSA File No. LR43279
.160 (4.1) Dia Max
** Some devices may have a lead length of .980 (25.0)
VDE File No. 115369
Note 1: Temperature sensitive devices. Do not store above +48°C (+120°F).
Note 2: Color Band does not denote temperature group.
Note 3: The electrical resistance of the NTE series thermal cut−off is comparable to that found in an equal length of 18 gauge solid copper wire. With
proper air flow, heat generation below 15 Amps is minimal, above 15Amps the upper limit on the currentcapacity will depend on the environment
for each specific application.
Note 4: A general rule of thumb for continuous operating temperature for thermal cut−offs is 30°C less than the Maximum Opening Temperature.
Rev. 5−11
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