250A 4 Pole Automatic Changeover Switch 230v Three Phase Changeover Switch

250A automatic changeover transfer switch mains power 4 Pole 230/400V 50/60Hz
 

• This changeover switch is an microprocessor based PC class device designed to transfer loads automatically and manually from one power source to another in a wide variety of 1-3 phase applications.
• The unit monitors 3-phase normal and reserve source voltages, sends remote start command to the generating set and performs changeover switching between those 2 sources connecting the load circuits to a power source having voltage and frequency within preset limits.
• Device has a manual load switch lever, a manual/auto mode switch and a mechanical locking switch.
• Inputs and outputs: fire linkage control, generator remote start, external indicators.
• The front panel leds provide information about mains and generator power availability as well as a current
• switch position.
• The device display control panel shows device current state and source voltages and frequences and can be placed on the switch front side or in a distance of 1-3 meters from the device via standard Ethernet cable.
• Power source voltage/frequency limits, transfer/start/stop delays, generator exerciser schedule and transfer modes are front panel configurable.
• Note: The delays apply in case if the device is connected to 24VDC auxiliary power supply only.

Features

• High density silver-alloy contacts providing thousands operating cycles at 100% rated load;
• Bridge type double break design not requiring special SCPD and matching AC-33B requirements;
• Optimized magnetic blow-out arc extinquish system allowing to reach 10le capacity;
• Multi-mode operation including manual transfer, automatic transfer with/without autorecovery and
• generator control under various configuration settings;
• 3 working positions: main power ON - backup power OFF; main power OFF - backup power ON; main and backup power OFF;
• Microprocessor controlled operations;
• Reliable mechanical interlock and electric interlock;
• "Zero Position" technology. Device can be set to Zero Position under emergency situations with two way power supply cut off meeting the fire fighting linkage requirements;
• Singleness motor drive providing smooth, reliable, low noise operation;
• Driving motor energized during switching operations only and having outstanding energy saving;
• Mechanical interlock, making sure that the Normal power and Reserve Power sources work without
• interference;
• Distinct ON and OFF positions and activity indicators;
• Electromechanical integration design with accurate changeover adopting an advanced logical control technology and high anti-interference ability;
• Easy installation using control circuit plug type terminal connections.

ATS Specifications:

FAQ