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Load Switch MVFZWO-27.5

Description

The load break switch MFZWO-27.5 is a one-phase combined load switch with fuses, which enables switching on and off under load (without damage) sections of the three-phase alternating current circuit, with earthed or isolated neutral, in emergency conditions.

Rated current, A — 125, 400, 630

Rated voltage, kV — 10

The maximum operating voltage, kV — 12.7

Rated frequency, Hz — 50

Rated short-time withstand current, kA / s — 12.5 / 4 20/2

Rated peak withstand current, kA — 31.5 / 50

Impulse voltage (peak) / ground, kV — 75/85

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Parameters

Operating Conditions of MFZWO-27.5:

Altitude: up to 2000 m.
Ambient temperature: from -35 ° C to + 45 ° C.
Environmental Humidity: the average value of relative humidity during the day is not more than 95%;
Seismic resistance up to 8 points.
Do not operate in places where the circuit breaker may be exposed to flammable gas, where there is a danger of explosion, the risk of chemical corrosion, and where the equipment is subject to strong vibration.
Estimated service life — 20 years
Warranty Period — 12 months

Parameters of MFZWO-27.5:

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Solutions

High-Voltage Load Switch MFZWO-27.5 used for railways projects.

Widely used in electrified railway, suitable for breaking load current, no-load transformer and cable current, capacitance current and close short circuit fault current.