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Eaton Static Transfer Switch (STS)
Designed to enhance our line of advanced backup power management solutions

Eaton STS

Floor-Based PDUs
Static Transfer Switch

Overview:

Eaton Static Transfer Switch (STS)

Eaton Static Transfer Switches are designed to enhance our line of advanced backup power management solutions, adding an increased level of power quality, flexibility, availability and reliability to create the best ups power protection infrastructure.

Eaton Type II Static Transfer Switch (STS)

Eaton Type II STS transfer electrical loads from one source to another, but provides more power availability. The Type II STS eliminates the chance of a loss of power to critical loads by properly coordinating with the electrical distribution system. During a fault condition, the Type II STS will continue to conduct current, allowing downstream circuit breakers to work selectively.

Unmatched Reliability

  • A patented transfer algorithm and robust electrical components ensure no single point of failure
  • Increased MTBDE to an estimated 10 million hours
  • A triple-redundant design ensures reliability: each supply is capable of supporting all control power

Breakthrough Technology

  • Unparalleled alarms, metering and diagnostics
  • Software-guided breaker operation eliminates human error
  • Up to 30% smaller than comparable industry models, an ultra-dense footprint reduces demand on valuable data center real estate
  • Dual-redundant fans provide back-up cooling and notification of any fan failures

Maximal Monitoring and Management

  • Detailed monitoring, reporting and trending capabilities
  • Graphical user interface and mimic panel for local system monitoring and configuration
  • Remote-access capability for system, event and alarm monitoring
  • With over 100 event types, 2,500 events can be stored or downloaded for analysis
  • Three-tiered user-defined thresholds for power quality management

Exceptional Ease of Access

  • Flexible access for ease of cabling, operation and maintenance
  • Advanced communications allow access at any time from any location
  • A unique modular design reduces open-door time to 15 minutes for standard servicing

Type II Static Transfer Switch:

Time is money as the world of business continues to move at breakneck speed. Downtime due to power problems can quickly escalate into significant lost revenue if the right infrastructure is not in place. In applications where seamless transfers of power are necessary due to the critical nature of the electrical load, the Eaton Type II Static Transfer Switch (STS) is the solution of choice. Type II STSs are high-speed open-transition switches that can transfer electrical loads from one AC power source to another in a fraction of a single electrical cycle. The Type II STS eliminates the chance of a loss of power to critical loads by properly coordinating with the electrical distribution system. During a fault condition, the Type II STS will continue to conduct current, allowing downstream circuit breakers to work selectively. Designed by Cyberex, an industry leader in static switch technology, the Type II STS provides state-of-theart technology and reliability. By incorporating a STS into a facilities power infrastructure, many UPS/building system configurations become a possibility, ranging from single module reverse transfer systems up to full distributed redundant systems.

Features

  • Patented algorithm ensures instantaneous transfers without cross connection of sources
  • Redundant internal power distribution in all system control boards
  • Enhanced monitoring and diagnostics enhance system availability by enabling quick response to events:
    • RS-485 interface with Modbus protocol
    • System LCD control panel
    • Alarm, history and event logs
    • System mimic panel for visual indication with an audible alarm
  • Design enables maintenance without affecting power to the critical load
  • Digital signal processor based for high reliability and site-adaptability
  • Fuse-free, rugged, high-reliability SCR devices eliminate the need to replace fuses

Standard features

  • 100% continuous rating
  • RS-485, four-wire interface with Modbus protocol
  • Emergency 180˚ phase transfer
  • Forced air cooling on all models
  • Top or bottom cable entry
  • Six plug-in circuit breakers (CBs)
  • Fuse-free, rugged, high-reliability SCR devices eliminate the need to replace fuses
  • Total access to all power connections for infrared scans
  • Design enables system maintenance without affecting power to the critical load
  • Digital signal processor based, fully digital controls for high reliability and site-adaptability
  • System mimic panel for visual indication with an audible alarm
  • Dual maintenance bypass with two kirk keys; protected to prevent operator error during bypassing operation
  • Graphical user-interface
  • Alarm log, history, and event log
  • Real-time event log with 10 microsecond resolution between events
  • Redundant cooling with fan fail sensing
  • Lowest MTTR
  • Multiple levels of user, maintenance and factory password protection
  • Digitally controlled system setpoints
  • Transfer count-date/time stamp
  • Metering: kVA, kW, Ipeak, phase, current, voltage, frequency

Specifications:

Components
Fully rated, disc-type SCR
Mimic panel LED current flow
Backlit LCD graphical display
Dual-redundant fans
Triple-redundant power supplies
Dual-redundant internal bus
TVSS 80 kA (std.), 160 kA (opt.)
Communications and Software
Password protection-defined user tiers
Remote access RS232, RS485 and Web-based
Event types information, warnings and alarms
Alarm notification email or email to pager
Remote-downloadable software upgrades
Emergency power off: remote (std.), local (opt.)
Five relay contacts (std.)
Power and Event Management
Metering 1 kVA, kW, Ipeak, phase, current, voltage, frequency
Metering 2 power factor, kVA demand, harmonic analyzer
Event alarm log, 2,500 events
Electrical Characteristics
 Voltage/frequency 208/480/600V, 3 Phase, 4 Wire, 60Hz
 Current rating 200/400/600/800A
 Short-circuit withstand 100 kA
 Overload capability 125% (30 min.), 150% (1 min.), 1000% (3 cycles)
 Circuit breakers non-automatic or automatic
Operational Characteristics
 Full-digital controls
 Type II fuse-less current path
 System-assisted bypass
 PQ states preferred, acceptable and emergency
 Automatic or manual transfer
 Sensing time 2 ms
 Auto transfer 4 ms (or less)
 Reacquisition 3 cycles
 User-defined transfer angle max 180°
 Temperature 0-40°C (operating), 0-80°C (storage)
 Audible noise < 65 dBA (6 ft.)
Standards
All applicable NEMA standards
UL 1008 listed
FCC compliant (Part 15)
NEC 2002
ANSI/NFPA 70 (2002)
IEEE 587 (ANSI C62.41)

Product Specifications:

Model # Amps Volts Dim. (WxDxH) BTU/hr. Weight
DSR-02002-326-208-6N035 200A 208V 34” x 34” x 76” 2400 1200lb
DSR-02002-326-480-6N035 200A 480V 34” x 34” x 76” 2400 1200lb
DSR-04002-326-208-6N035 400A 208V 34” x 34” x 76” 3600 1200lb
DSR-04002-326-480-6N035 400A 480V 34” x 34” x 76” 3600 1200lb
DSR-06002-326-208-6N035 600A 208V 34” x 34” x 76” 4800 1400lb
DSR-06002-326-480-6N035 600A 480V 34” x 34” x 76” 4800 1400lb
DSR-08002-326-208-6N035 800A 208V 46” x 34” x 76” 6000 1800lb
DSR-08002-326-480-6N035 800A 480V 46” x 34” x 76” 6000 1800lb

Documentation:

Download the Eaton Type II Static Transfer Switch Datasheet (PDF).