HPS-iSTS-F3 Wall Mount – Outdoor Static Transfer Switch 125A max

Brand: Static Power

Note: This product is not available in the following regions: New Zealand,Asia,Middle East
  • Fuse Protected
  • Wall Mounted
  • IP54 – 55°C ambient
  • Up to 1-Phase/125A and 3-Phase/63A
  • Manual and automatic transfers selection



Single & Three Phase & Wall Mount Static Transfer Switch

Superior in performance and ruggedness, the iSTS F3 is designed for tough environments where power availability is essential.

Main Features

  • Natural cooling, no fan
  • IP54, 55°C ambient
  • Compact
  • Single or 3-phase/3 or 4-pole
  • Built-in transient voltage protection
  • UPS Eco-Mode compatible
  • RCD site compatibility
  • Safe asynchronous source transfers
  • Very high MTBF (>800,000 hours)
  • Back feed protection contactors
  • Manual and automatic transfers selection
  • Preferred source selection
  • Visual and sound alarms
  • Bi-colour LED mimic
  • Maintenance Bypass pad-lockable
  • Voltage free general alarm contact


  • PLCs
  • Computers
  • Security & Lightning
  • CNCs & Robotics
  • Motors


  • Stainless steel enclosure

Specifications Table

Current rating1Ph: 125A max 3Ph: 63A max
Voltage ratingAll region-specific voltages ±10%
TypeSingle phase, 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 – up to ¼ cycle
MTBF>800,000 hours
Maintenance bypass3-position overlapping, no-break CAM switch
IsolationIncoming sources isolator switches
DisplayBi-colour LED mimic decal
InterfacePreferred supply selection, Source transfer selection and Alarm cancel button
Contact2 Self wetting transfer control inputs
5 Pre-defined Voltage free change-over status indicators, Form C
EthernetHTTP, SNMP, MODBUS TCP, Email & NTP – Modbus RTU Optional
Input terminationLugged fixed wiring to M6/M8 terminals via glands
Output terminationLugged fixed wiring to M6/M8 terminals via glands
Dimensions H x W x DH600 x W400 x D190 mm
Temperature0 – 55°C
IP ratingIP54
DetectionDigital: <1ms
Asynchronous break time0ms, 10ms, 50ms or Vt proportional, 0° to 180°
Loading0 – 100% @55°C ambient
Device ratings134A RMS, 1600V, 2kA 1 cycle
Overload @55°C ambient110% for 10min
125% for 2min
150%  for 60s
200% for 30s
400% for 0.1s 2kA for 1 cycle
Fault current setting300% peak with load fault transfer inhibit
Safe install environment20kA, 100A/200A internally fused
Protection100A/200A fuses – BS88/FE100
Power factorNo practical limit
Max THDV10% – Max allowable source voltage distortion
Crest factor3 : 1
dV/dt max800V/μs
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 
HPS F3 1P2 00631-Phase/2-Pole63A
HPS F3 1P2 01251-Phase/2-Pole125A
HPS F3 3P3 00323-Phase/3-Pole32A
HPS F3 3P4 00163-Phase/4-Pole16A
HPS F3 3P4 00323-Phase/4-Pole32A
HPS F3 3P4 00503-Phase/4-Pole50A
HPS F3 3P4 00633-Phase/4-Pole63A

View Datasheet

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