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JZFR Rapid High-voltage Current-limiting Fuse Protection Device

2018-03-14 15:07

Product Overview

The special high-voltage current-limiting fuse with the new high-energy capacity zinc oxide resistance absorption energy developed by our company which not only can cut off short-circuit current safely and quickly, but also the short-circuit current can be limited within a specified range, with strong practicality and great economic value, it conducive to long-term planning.

Device Features

♦2ms quick break

♦Reduce the maximum short-circuit impact current by 3-6 times

♦Fast cut off the fault of each branch loop

♦Keep short-circuit current at 1/6 of short-circuit current peak

♦Action fast. Short circuit faults can be cut off within 3ms.

♦Reliable performance.

♦Equipment structure is simple, low cost, strong practicability, safe and reliable.

Schematic diagram of rapid high-voltage current-limiting fuse protection device.

Model specification

Product Parameters

Rated voltage (KV): 3.3, 6.3, 10.5, 13.8, 15.75, 18

Rated current (A):

10, 20, 25, 31.5, 40, 50, 63, 80, 100, 125, 160, 200, 250, 300, 350, 400

Rated breaking current (KA): 31.5, 40, 50, 63, 80, 100, 125, 160

Breaking Time (ms): 2ms           Cut-off time: ≤3ms

Current attenuation of 0 time: ≤3ms

Conditions of Use

Ambient temperature: -40-+65

Ambient Humidity: Average monthly maximum relative humidity of 90%

Altitude: ≤2000m.

Use location: No serious pollution gas and corrosive, explosive medium, no violent vibration and impact of the indoor premises.

More than the above conditions of use, please contact us when ordering.

Ordering instruction

The user shall provide the relevant technical parameters of mainframe, main transformer, factory transformer or magnetic change.

The user shall provide the main wiring diagram, indicating the name, specification and model of the components.

When ordering, specify the device size, color, function requirements, etc., if any special requirements should be put forward at the time of ordering.

If additional accessories or spare parts are required, specify the type and quantity required at the time of ordering.



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