最近中文字幕完整版免费,又粗又硬又大又爽免费视频播放,一本色道久久东京热,伊人久久精品中文字幕,亚洲一卡2卡3卡4卡乱码

倍加福FN-LB-I現(xiàn)場(chǎng)螺紋安裝浪涌保護(hù)器

●?單通道
●?現(xiàn)場(chǎng)安裝模式
●?3種螺紋安裝
●?不銹鋼外殼
●?放電電流10 kA/線
●?500 V線地絕緣電壓
●?適合危險(xiǎn)區(qū)安裝

功能

該浪涌保護(hù)器能夠限制來自雷電和開關(guān)沖擊等各樣的瞬時(shí)感應(yīng)電流。其原理是向大地轉(zhuǎn)移瞬間高電流并且對(duì)持續(xù)的浪涌電流進(jìn)行限制直至使信號(hào)線間的電壓達(dá)到安全水平。它能夠?yàn)楸槐Ｗo(hù)的設(shè)備提供85 V的線與線和500V的線與地之間的鉗位電壓，能夠保護(hù)最少有500 V的與地絕緣電壓的設(shè)備。安裝在管道或常用過程儀表的電纜接口處。注意：浪涌保護(hù)器必須與地保持可靠有效的連接，保護(hù)設(shè)備保持等電位，接地系統(tǒng)必須遵循所有適用標(biāo)準(zhǔn)。

技術(shù)參數(shù)

Supply
Rated voltage  48 V
Rated current  250 mA
Leakage current  5 μA
On-state voltage  85 V
Ground insulation  500 V breakdown voltage
Ambient conditions
Ambient temperature -30 ... 60 °C (-22 ... 140 °F) for Ex application, please
observe EC-Type Examination Certificate
Mechanical specifications
Housing material stainless steel 1.4401 (AISI 316)
surface all over polished
Protection degree IP20
Cable
Length L 0.4 m
Mass approx. 200 g
Dimensions AF22 x 77 mm (0.9 x 3 in)
FS-LB-I M20 x 1.5 thread
Mounting FP-LB-I PG 13.5 thread
FN-LB-I ? NPT thread
Data for application in connection
with Ex-areas
EC-Type Examination Certificate PTB 00 ATEX 2175
Group, category, type of protection,
temperature classification
? II 2G EEx ia IIC T6
CSA approval
Control drawing 116-0187 (cCSAus)