HPS-iSTS-K Static Transfer Switch 630A max

Brand: Static Power

This product is available globally.
  • 1‐Phase/2‐Pole, 3‐Phase/3‐Pole or 3‐Phase/4‐Pole
  • 1Ph: 630A max & 3Ph: 630A max
  • High‐level interface ‐ MODBUS, SNMP
  • Easy front access for maintenance
  • Mechanically interlocked circuit breakers Maintenance bypass



Single & Three Phase & Wall Mount Static Transfer Switch

The HPS-iSTS-K is a Static Transfer Switch – STS – that can feed a single level of distribution and also be used in pairs to improve the availability of dual corded distribution systems.This STS is ideally suited for narrow corridors and small spaces such as computer rooms, with a compact footprint at just 400mm in depth.

Main Features

  • Advanced Automatic Transfer Switch – ATS – functionality
  • Fuseless design
  • Built-in transient voltage protection
  • UPS Eco-Mode compatible
  • Safe asynchronous source transfers
  • Very high MTBF (>800,000 hours)
  • LED mimic decal with graphic LCD interface
  • One touch transfers
  • Visual and sound alarm
  • Integrated web server
  • Remote operation
  • High-level interface – MODBUS, SNMP
  • Email alerts
  • Clock synchronisation with NTP
  • Mechanically interlocked circuit breakers Maintenance bypass
  • Redundant fan cooling
  • High fault current capacity
  • 5 x voltage-free contacts & remote inputs
  • Easy front access for maintenance


  • IT Servers
  • Motors, fans, pumps transformers
  • Workshop, CNCs, Robotics
  • Industrial Processes
  • UPS


  • Colour 7″touch screen
  • Top Entry
  • IP Rating

Specifications Table

Current rating1Ph: 630A max 3Ph: 630A max
Voltage ratingAll region‐specific voltages selectable ±10%
Type1‐Phase/2‐Pole, 3‐Phase/3‐Pole or 3‐Phase/4‐Pole
Frequency50Hz and 60Hz, ±10% ‐ Auto detection
Transfer typeBreak‐Before‐Make zero current transfer by Thyristors / SCR
Synchronous break time<1ms ‐ asynchronous break time up to ¼ cycle
MTBF>800,000 hours
Maintenance bypass5 Mechanically interlocked circuit breakers
IsolationIncoming sources and output isolator switches
DisplayBi‐colour LED mimic decal with graphic backlit LCD display and information interface
InterfacePreferred supply selection, Source transfer selection and Alarm cancel button
Contact2 Self wetting transfer control inputs
5 Voltage free change‐over status indicators, Form C
Input optionsTerminals M10 via gland plate
Output optionsTerminals M10 via gland plate
Dimensions H x W x D1900 x 800 x 400mm
Weight195kg ‐ 295kg
Temperature0 – 45°C
IP ratingIP21
DetectionDigital: <1ms
Asynchronous break time0ms, 10ms, 50ms or Vt proportional, 0° to 180°
Loading0 ‐ 100% @45°C ambient
Device ratings1800ARMS @28kA 1 cycle
Overload @40°C ambient125% for 10min               150% for 30s 4kA for 1s                   8kA for 0.1s
28kA for 1 cycle
Fault current setting350% peak with load fault transfer inhibit
Safe install environment28kA for 1 cycle ‐ Fuseless design
ProtectionCircuit breakers
Power factorNo practical limit
Max THDV10% ‐ Max allowable source voltage distortion
Crest factor3.5 : 1
dV/dt max800V/μs
CoolingRedundant fans
Humidity @40°C ambient5 – 95% non‐condensing
Regulatory approvalsIEC 62310‐1,2,3 ‐ IEC 60950 ‐ IEC 61000‐6‐1,2,3,4 – CE – RCM ‐ UL Capable ‐ RoHS
Standard warranty24 months offsite repair or replacement policy

Series Table

Model NumberPhases/PolesMax Current
K 1P2 04001-Phase/2-Pole400A
K 1P2 05001-Phase/2-Pole500A
K 1P2 06001-Phase/2-Pole600A
K 3P3 03003-Phase/3-Pole300A
K 3P3 04003-Phase/3-Pole400A
K 3P4 02503-Phase/4-Pole250A
K 3P4 03003-Phase/4-Pole300A
K 3P4 04003-Phase/4-Pole400A
K 3P4 06303-Phase/4-Pole630A

View Datasheet

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