Electronic switch phases PEF-301
Offer type: salePublished: 28.02.2015
Designed for food industrial and domestic single-phase load 220V/50Hz three-phase four-wire network 3×380+N to ensure uninterrupted power to critical loads and protect them from unacceptable fluctuations in voltage. Depending on the availability and quality of voltage in the main phase (the priority is set to the line L1), selects the most "favorable" phase and high performance switches the single-phase load on this phase. Resetting the voltage on the source phase PEF-301 will switch the load on her back. If the return (TV) in the "∞", the return to the priority phase does not occur.
Switching to the phase with invalid parameters is not performed. If the voltage on the standby phases are outside the preset thresholds - load is disabled.
Protects the load of any capacity: up to 3.5 kW is directly output relay contacts, over 3.5 kW through a magnetic starter.
In the PEF-301 includes an internal lock sticking contacts of output built-in relays, as well as monitoring the status of the power contacts of the motor starter in the external circuit.
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Baryishnikov
