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STS 4000

STS 4000
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DATA CENTER MALLS & FACILITIES 3 phase out, 4 poles static transfer switch Very Fast Uninterrupted Transfer Advanced Communication Microprocessor Control RACK TOWER SERVICE / TECH. SUPPORT STS 4000 3 phase, 4 pole static transfer switch transfers uninterruptedly critical loads to either of two independent AC power lines. The system monitors two AC inputs. If any of them goes out of the specified tolerance, it transfers the critical load to the other. By increasing the energy quality of the systems used with STS 4000, while reducing the effects of interference and short interruptions, a backup power system is gained. G E N E R A L S P E C I F I C AT I O N S • Full digital control with microprocessor controlled structure • Programmable synchronized and unsynchronized transfers • 2 AC inputs with 3 phase and neutral switching • Isolation protection between sources with switched neutral • Easy installation and maintanance • Convenient and multifunctional front panel and diagnostic codes • Compact design • Transfer inhibit system over a certain current value • Wide input voltage range • Overload, over temperature and short circuit protections • “Break Before Make” type transfer • Convenience during maintenance and repair with Isolated Maintenance Bypass • Very fast uninterrupted transfer even in case of any failure • Remote monitoring of energy resources • TCP / IP, SNMP, MODBUS and RS232 infrastructure for communication • Selectable preffered source • Dry-contact interface • Fuse-free construction with a robust, high reliability SCR • Internal cooling fans • Digitally controlled system set points

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T E C H N I C A L S P E C I F I C AT I O N S MODEL Nominal current ELECTRICAL DATA Input voltage (Ph-Ph) Input voltage tolerance Input frequency Input frequency range 48-65Hz (upper and lower limits adjustable) Efficiency (at full load) Transfer type 'Break before make'' Transfer methods available Automatic / Manual / Remote synchron Transfer control with adjustable delay (non synchron) zero current (non synchron) < 4 msn for synchronous sources Transfer time < 10 msn for non-synchronous sources Switching type 3 phase + Neutral switching Output current crest factor Admissible overload 151%...

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