NEC SF SEFUSE Axial Lead No Resettable 10A 15A 250V Metal Temperature Cutoff Motor Thermal Fuse
SEFUSE (temperature overheating fuse) has a small and strong temperature overheating fuse that detects abnormal temperature and cuts off the circuit. It can detect the abnormal temperature rise of household or industrial electrical products and cut off the circuit quickly and timely, which can achieve the effect of preventing fires in the first place.
SEFUSE has two types: SF type using heat sensitive particles (organic chemical substances) as heat-sensitive material and SM type using low melting point alloy. Rated operating temperature range: SF type is 73°C~240°C, SM type is 76°C~187°C. There are various products with rated current of 0.5A~15A. SEFUSE is manufactured in a factory that has passed the quality assurance standard <IS09001> of the International Organization for Standardization (ISO).
SF Type Thermal Fuse
The SF type is a temperature overheating fuse that uses metal as the outer shell and heat-sensitive particles (organic chemical substances) as the heat-sensitive body. Since the structure of the heat-sensitive material is not energized, the internal impedance is small and the cut-off current (rated current) is as large as 6A~15A (AC)
SM Type Thermal Fuse
The SM type is a temperature overheating fuse that uses ceramics as the shell and low-melting alloy (melt) as the heat-sensitive body. Its cut-off current (rated current) is 0.5A~2.0A (AC). Because the outer shell is an insulator, the ceramic has the feature that it can be installed close to the temperature detection side.
| Note 1) Meet WEEE
(RoHS) | Note 2) Name | Rated operating temperature
TF·Tf(℃) | Action accuracy
(℃) | TH
Th
(℃) | TM
Tm
(℃) | Rated current | Rated voltage |
| o | SF 70E | 73 | 70±2 | 58 | 150 | Note 4) 15A/10A (Impedance circuit) | Note 4) AC 250V |
| o | SF 76E | 77 | 76±0/4 | 62 |
| o | SF91E | 94 | 91±1/3 | 79 |
| o | SF96E | 99 | 96±2 | 84 |
| o | SF113E | 113 | 110±2 | 98 | 160 |
| o | SF119E | 121 | 119±2 | 106 | 150 |
| o | SF129E | 133 | 129±2 | 118 | 159 |
| o | SF139E | 142 | 139±2 | 127 |
| o | SF152E | 157 | 152±2 | 142 | 172 |
| o | SF169E | 172 | 169±1/3 | 157 | 189 |
| o | SF184E | 184 | 182±2 | 174 | 210 |
| o | SF188E | 192 | 188±1/3 | 177 | Note3) |
| o | SF214E | 216 | 214±1/3 | 200 |
| o | SF226E | 227 | 226±1/3 |
| o | SF240E | 240 | 237±2 |
Note 1) o:No hazardous substances specified by wEEE (RoHs) are used.
Note 2)When you need long-lead products, please add "-1" to the end of the name.
Note 3)sF188E, sF214E,sF226E,sF240E's Tm as below .
※ ⒈2002010205023072(10A〉
2004010205121099(15A)
※⒉ 2002010205023074(10A)
2004010205120822(15A)
※⒊ 33ˉ549
※⒋ 33ˉ354
| Tm | UL | CSA | VOE | BEAB | CCC |
| SF188E | 375℃ | 300℃ | 375℃ | 300℃ |
| SF214E | 350℃ | 350℃ |
| SF226E | 240℃ | 330℃ | 300℃ |
| SF240E | 375℃ | 350℃ | 375℃ | 350℃ |
Note 4) The approval rating of each safety standard is shown in the table below.
| Rated voltage | UL | CSA | VOE | BEAB | CCC | Electrical Appliances Safety Law |
| AC120V | 15A (Inductance circuit))
20A (Impedance circuit) | | | | | |
| AC240V | 15A (Impedance circuit) | | | | | |
| AC250V | 10A (Impedance circuit) | 15A (Inductance circuit)
(Impedance circuit) | 10A | 10A | 10A | 10A |
| 15A (Impedance circuit) | 15A | 15A | 15A | |
| 17A ( Impedance circuit) | | | | |
| AC277V | 15A ( Impedance circuit) | | | | | |
Features
●Because of its small size, it is very sensitive to ambient temperature.
●Because of the sealed structure, the characteristics of the change caused by aging are small, and the operation accuracy is very high.
●It is a non-recovery type, so it will not recover even if the temperature drops after operation.
●There are two types, SF type and SM type, to adapt to different purposes.
●The sealing part of the SF type (except the SF/K series) uses a ceramic insulating tube, so even if pressure is generated during bending and other operations, its sealing performance will not be impaired.
●Comply with both Japanese safety standards and safety standards of other countries.
●Products that do not damage the ecological environment and comply with WEEE (RoHS) regulations have been launched.
→SF type temperature overheating fuse, using AgCu0 as the raw material of the movable electrode, has obtained patents in many countries, such as the United States and Europe.
Applications
●Electric iron, hot hair dryer, electric stove, electric table
●Refrigerator, rice cooker, electric kettle, coffee pot
●Air conditioner, ventilating fan, electric fan, electric sewing machine, gas water heater
●Transformer, power converter, motor
●Charger, battery pack, car air conditioner
●Copier, printer, fax machine, power plug socket
Product Tags:
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SEFUSE 73C-240C Thermal Fuse Link 66x4.2mm Metal Case Over Heat Protection Images
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