NTE8070 Datasheet, PDF (1/1 Pages) NTE Electronics – Thermal Cutoff (Thermal Fuse)

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
• Electric Motors
• Microwave Ovens
• And hundreds of others
• Refrigerators
• Hot Plates
• Window Fans
• Popcorn Poppers
• Battery Chargers
• Glue Guns
• 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.
NTE Type
Number
8070
8076
8081
8085
8090
8096
8098
8103
8108
8115
Diagram
Number
193
193
193
193
193
193
193
193
193
193
Maximum Temperature
For Opening
°C
°F
72
162
77
171
84
184
87
189
93
200
98
209
100
212
104
220
109
229
117
243
NTE Type
Number
8118
8125
8139
8149
8167
8181
8182
8213
8226
8242
Diagram
Number
193
193
193
193
193
193
193
193
193
193
Maximum Temperature
For Opening
°C
°F
121
250
128
263
141
286
152
306
169
336
184
364
192
378
216
421
228
443
240
464
Electrical Rating
Volts
240 VAC
120 VAC
277 VAC
Interrupting
25A RES
5 LRA
20A RES
Continuous
16.7 RES
0.84 FLA
15A RES
Electrical Rating
Volts
120–277 VAC
180 VAC
Interrupting
125VA Pilot Duty
3A Motor Rating
Continuous
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
1.380
(35.0)
Case End
3.220 (81.78)
.457 (11.6) Ref
1.383
(35.1)
Epoxy End
Laboratories Specifications and CSA.
• Each device comes packaged with 2 crimp splices for
solderless connection (Poly–bag or Carton pack orders
only)
S UL File No. E49429 (Does NOT include NTE8182)
S UL File No. E117626 (NTE8182 Only)
S CSA File No. LR43279 (Does NOT include NTE8182)
NOTE: Tin plated lead
.157 (3.98) Dia Max
NOTE: Silver plated lead
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.