PPTC特點(diǎn): 電阻低   過流保護(hù)  過溫度保護(hù)  可重復(fù)使用

Features：Provide dual protection for over-current & over-temperature generated after the motor stalling,Protection lifetime is more than 2000 times,Rapidly cool the motor after stalling protection,Protection time can be adjusted and set according to the customers’ requirements,Configuration and dimension can be customized according to the allowed motor inner space,No electromagnetic noise,Outstanding anti-vibration ability,Operation temperature: -40℃～85℃/125℃production. 

IH=Hold current: maximum current at which the device will not trip at 25℃ still air.

IT=Trip current: minimum current at which the device will always trip at 25℃ still air.

Vmax=Maximum voltage device can withstand without damage at rated current.

Imax=Maximum fault current device can withstand without damage at rated voltage. 

Max Time-to-trip=Maximum time to trip(s) at assigned current.

Pd max=Maximum power dissipation: maximum power dissipated by the device when in state air environment.

Rmin=Minimum device resistance at 25℃ prior to tripping.

Rmax=Maximum device resistance at 25℃ prior to tripping.

R1max=Maximum device resistance at 25℃, of device one hour after being tripped the first time.

特點(diǎn)：對電機(jī)熄火后產(chǎn)生的過電流和過溫提供雙重保護(hù)，保護(hù)壽命超過2000次，熄火保護(hù)后快速冷卻電機(jī)，保護(hù)時(shí)間可根據(jù)客戶要求進(jìn)行調(diào)整和設(shè)置，配置和尺寸可根據(jù)允許的電機(jī)內(nèi)部空間定制，無電磁噪音，抗振能力強(qiáng)，工作溫度：-40℃～85℃/125℃生產(chǎn)。

IH=保持電流：在25℃靜止空氣中設(shè)備不會(huì)跳閘的最大電流。

IT=跳閘電流：裝置在25℃靜止空氣中始終跳閘的最小電流。

Vmax=設(shè)備在額定電流下能夠承受的最大電壓，且不會(huì)損壞。

Imax=設(shè)備在額定電壓下能夠承受的最大故障電流，且不會(huì)造成損壞。

最大跳閘時(shí)間=指定電流下的最大跳閘時(shí)間。

Pd max=最大功耗：設(shè)備在空氣環(huán)境中的最大功耗。

Rmin=跳閘前25℃時(shí)的最小設(shè)備電阻。

Rmax=跳閘前25℃時(shí)的最大設(shè)備電阻。

R1max=裝置首次跳閘一小時(shí)后25℃時(shí)的最大裝置電阻。