NTE8070 thru NTE8242
Thermal Cutoff
(Thermal Fuse)
Description:
Nineteen Thermal Cut–offs (also known as Thermal Fuses) are now included in the NTE product line. They are miniature,
NON–RESETTABLE temperature sensitive devices designed to prevent appliances and electronic equipment from over-
heating. 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
• Refrigerators
• Hot Plates
• Battery Chargers
• Glue Guns
• Electric Motors
• Microwave Ovens
• And hundreds of others
• Window Fans
• Popcorn Poppers
• Coffee Makers
• Dishwashers
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.
Maximum Temperature
For Opening
Maximum Temperature
For Opening
NTE Type
Number
Diagram
Number
NTE Type
Number
Diagram
Number
°C
72
°F
°C
°F
8070
8076
8081
8085
8090
8096
8098
8103
8108
8115
193
193
193
193
193
193
193
193
193
193
162
171
184
189
200
209
212
220
229
243
8118
8125
8139
8149
8167
8181
8182
8213
8226
8242
193
193
193
193
193
193
193
193
193
193
121
128
141
152
169
184
192
216
228
240
250
263
286
306
336
364
378
421
443
464
77
84
87
93
98
100
104
109
117
Electrical Rating
Volts
Electrical Rating
Volts
Interrupting
Continuous
16.7 RES
0.84 FLA
Interrupting
Continuous
240 VAC
120 VAC
277 VAC
25A RES
5 LRA
120–277 VAC
180 VAC
125VA Pilot Duty
3A Motor Rating
20A RES
15A RES
FEATURES:
•
•
•
•
•
Maximum Current Rating: 15 Amps
Typical Opening Temperature Tolerance: +0°C, –4°C
18 Gauge Solid Copper Wire
Full 1 1/3 ” leads to fit all replacement configurations
All types meet the requirements of Underwriters
Laboratories Specifications and CSA.
3.220 (81.78)
1.380
(35.0)
Case End
.457 (11.6) Ref
1.383
(35.1)
Epoxy End
•
Each device comes packaged with 2 crimp splices for
solderless connection (Poly–bag or Carton pack orders
only)
NOTE: Tin plated lead
NOTE: Silver plated lead
S
S
S
UL File No. E49429 (Does NOT include NTE8182)
UL File No. E117626 (NTE8182 Only)
CSA File No. LR43279 (Does NOT include NTE8182)
.157 (3.98) Dia Max
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.
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