Manual transfer switch Suitable for AC 50HZ, rated voltage 400V/690V, rated current 3200A. 3 poles & 4 poles. The Terminal Is Copper T3 3-poles or 4-poles Avoid erroneous operations Designed according to IEC/ EN 60974-3 Conventional current250A630A1600A3150A Rated current In (A)200250315400500630100012501600200025003150 Rated insulation voltage Ui (V) 1000 Dielectric strength (V) 800010000 Rated surge-resistant voltage Uimp KV Rated working current AC-21B200250315400500630100012501600200025003150 380VAC-22B200250315400500630100012501600200025003150 AC-23B200250315400500630 AC-21B200250315400 100010001600200025002500 660VAC-22B160160315315315315800800800100012501600 AC-23B100125 Motor power380V100132160220280315560560560710710710 P (Kw)660V90110185185185185475475475750750750 Manual transfer switch is a development of knife switch. The difference is that the upper and lower planes move when the knife switch is operated, while the left and right rotating planes act when the knife switch is operated. It can be made into multi-contact and multi-gear switches. With an advanced and compact design, GRL’s change-over and transfer switches can be installed in confined spaces GRL’s change-over and transfer switches are tested according to IEC 60947-6-1 and IEC 60947-3 standards. In motorized switches, the motor operators have a wide voltage operation range Service continuity is ensured with a number of built-in, integrated safety features. For instance, the change-over mechanism has stable positions shown reliably. Unwanted manual and remote operation can be prevented. Manual operation is always possible in emergency situations. With GRL’s change-over switches, people and equipment are safe Depending on the size, the switch can be mounted in different positions, on the panel door or DIN rail. Snap-on accessories and connections are available.Transfer Switch factory website:http://www.grlbusbar.com/switch/transfer-switch/