Home > Products > Electrical & Power Equipment > ZBL-L Low voltage leakage protection device safety product
ZBL-L Low voltage leakage protection device safety product
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- Qiangdao
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Product Details
Place of Origin | Shandong, China | Brand Name | Bafang | |
Model Number | ZBL-L |
Product Description
Coal mining ZBL-L low voltage leakage protection device
Product Introduction
ZBL-L Mine low voltage leakage protection device uses a modern design technology
leakage protection device, compared with the same type of product safety
performance good economic advantages, ZBL-L mine low voltage leakage
protection device is suitable for coal mine methane and coal dust with a dangerous place, as a low voltage 380V ~ 1140V ungrounded system leakage protection.
Main Parameter
Control voltage:380V,660V,1140V.
Power supply: control voltage.
bus segment number:1.
voltage level: 380V 660V 1140V
action resistor values 3.5K±20% 11K±20% 20K±20%
latching action resistor values 7K±20% 22K±20% 40K±20%
Action time: branch export time 30 milliseconds; Total exports time 300 milliseconds.
Ability to adapt to changes in the power supply: Power supply change in the rating of 75% to 110%, the resistance value of the device leakage action, leakage blocking resistance value and operating time of the error is less than 20%.
Low voltage system capacitance change adaptation: When the system capacitor 0.1μf ~ 1μf range of changes, thedevice leakage resistance movement, leakage blocking resistance value and operating time of the error is less than 20%.
Dispersion leakage resistance resolution: Action resistor setting value 20% +2 K.
Relay export output: total exports and exports into the line corresponding to one, are normally open dry contact, contact capacity 1A; 380VAC.
Dimension:width(310)×depth(280)×height(410)
Specifications
1,low voltage leakage protection device
2,we have over 20 years experience.
3,fast delivery.
4,good quality
Contact Us
- Jining Bafang Mining Machinery Co., Ltd.
- Contact nameRenee Chang Chat Now
- Phone86-537-2280551
- Address1509 Room,Baifeng Building,Jinyu Road Rencheng District Jining city, Jining, Shandong
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