Mechanical resistance thermal cutoffs Devices (DF SF Series 10amp)

Subsequently, the voltage between the contacts of the thermal cutoff and the DC circuit rises to ensure that the DC circuit is disconnected. Through the present invention, the problem that the thermal cutoff in the DC circuit cannot effectively cut off the circuit is solved, and the effect of improving the circuit safety is achieved.

SF DF Series thermal cutoff assembly and equipment. The thermal cutoff assembly includes: a thermal cutoff connected to a DC circuit. The thermal cutoff is connected in parallel with a capacitor or a capacitor loop, which is formed by a plurality of capacitors connected in series. The capacitance of the capacitor or the total capacitance of the capacitor loop satisfies the following conditions: at the moment when the thermal cutoff is disconnected, the DC circuit charges a capacitor or a capacitor loop. Subsequently, the voltage between the contacts of the thermal cutoff and the DC circuit rises to ensure that the DC circuit is disconnected. Through the present invention, the problem that the thermal cutoff in the DC circuit cannot effectively cut off the circuit is solved, and the effect of improving the circuit safety is achieved.

resistance thermal cutoffs Devices

resistance thermal cutoffs Devices

Faixa de temperatura operacional:
SF type is 73 ℃ ~ 240 ℃, SM type is 76 ℃ ~ 187 ℃. There are various products with a rated current of 0.5A to 15A. Safety certifications include: UL, CSA, VDE, BEBA, PSE, JET, CQC … certificates. Comply with EU ROHS environmental protection directive requirements. NEC temperature fuse has the function of detecting abnormal temperature and cutting off the circuit. It can detect abnormal temperature rises of household or industrial electrical products and quickly and timely cut off the circuit, which can prevent the fire from being unburned.
NEC thermal fuse is a component that provides very reliable protection in over-temperature conditions. It has small volume, large overcurrent, non-reset, stable performance, convenient installation, and has a range of humidity settings and carrying capacity to choose from to meet customer application requirements.
Products are widely used in:
Various motors, copiers, fax machines, Reatores HID, fluorescent lighting ballasts, transformadores, carregadores, battery packs, aparelhos de aquecimento, ferros elétricos, hot air blowers, electric stoves, panelas elétricas de arroz, chaleiras elétricas, coffee makers, Ventilation fans, electric fans, electric sewing machines, aquecedores de água, power converters, power plug sockets, geladeiras, condicionadores de ar, automotive air conditioners, metros, equipamento, etc.. are over-temperature protected.

LE series (15UM)

Product Features

Using temperature fuse metal casing and sense temperature organic particles.
Belonging unrecoverable type thermal fuses. Temperature fuse melting off, even if the surrounding temperature falls, it will not be turned on.
No lead (Pb) and cadmium (Cd), and comply with RoHS.
REACH does not contain the specified 46 categories SVHC (SVHC).

Product Size

resistance thermal cutoffs Devices

resistance thermal cutoffs Devices

Comprimento do cabo Dimensions (milímetros)
UM B C D E
Standard LE 4.0±0.1 20±3 10.1±3 35±3 1.0±0.1
Long LE(L) 4.0±0.1 38±3 10.1±3 35±3 1.0±0.1

 

Modelo Rated temperature
Tf(℃)
Temperatura operacional
(℃)
Corrente nominal
(A)
Tensão nominal
(V)
maintaining the temperature
Th(℃)
Maximum temperature limit
Tm(℃)
LE070 73 71±2 15.0 AC250 50 150
LE073 77 74±2 15.0 AC250 50 150
LE080 84 80±2 15.0 AC250 50 150
LE090 94 91+3/-2 15.0 AC250 65 150
LE095 99 95±2 15.0 AC250 71 150
LE108 113 109±2 15.0 AC250 85 150
LE117 121 117±3 15.0 AC250 95 160
LE124 128 124±3 15.0 AC250 102 160
LE128 133 129+3/-2 15.0 AC250 105 160
LE138 142 138±3 15.0 AC250 110 160
LE152 157 152±2 15.0 AC250 130 175
LE169 172 167±2 15.0 AC250 145 190
LE189 192 189±3 15.0 AC250 165 300
LE213 216 213±2 15.0 AC250 190 300

 

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