HPS-iSTS-F1 Wall Mount – Outdoor Static Transfer Switch 32A max

Brand: Static Power

This product is available globally.
  • 16A & 32A options
  • Wall Mounted
  • IP54 – 55°C ambient
  • 1-phase, 2-pole
  • Manual and automatic transfers selection



Single Phase, 2 Pole, Outdoor & Wall Mount Static Transfer Switch 32A

Superior in performance and ruggedness, the iSTS F1 is designed for tough environments where power availability is essential.

Main Features

  • Natural cooling, no fan
  • IP54, 55°C ambient
  • Compact
  • Single-phase, 2-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


  • Inputs and output breakers in segregated extension
  • Ethernet module for LAN/TCP, Modbus & SNMP
  • Stainless steel enclosure

Specifications Table

Current ratingUp to 32A
Voltage rating115V or 230V, ±10%
Frequency50Hz and 60Hz, ±10% – Auto detection
Transfer typeBreak-Before-Make zero current transfer by Thyristors / SCR
Synchronous break timeSynchronous break time up to ¼ cycle
MTBF>800,000 hours
Maintenance bypass3 Positions 63A rated CAM Switch- Lockable
IsolationExtension with inputs and output breakers – Optional
DisplayBi-colour LED mimic decal  with load indication
InterfacePreferred supply selection, Source transfer selection and Alarm cancel button
ContactOne voltage free general alarm indicator, Form A or Form B – SPST
EthernetLAN – Optional
Input options8mm bolted terminals connections for up to 70mm2
Output options8mm bolted terminals connections for up to 70mm2
Dimensions & WeightWithout extension: W400 x D190 x H400mm – 12kg With extension: W400 x D190 x H600mm – 15kg
Temperature0 – 55°C
IP ratingIP54
DetectionDigital: <1ms
Asynchronous break timeVt proportional up to 12ms, 0° to 180°
Loading0.5A – 100% @55°C ambient
Device ratings150A RMS, 1400V, 2kA for 1 cycle
Overload @55°C ambient200% for 30s                      400% for 0.1s
300% for 1s                      2kA for 1 cycle
Fault current setting300% peak with load fault transfer inhibit
Safe install environment20kA, 100A internally fused
Protection100A 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 CurrentMaintenance Bypass
HPS F1 1P2 00161-Phase/2-Pole16ANo
HPS F1 1P2 0016 CB1-Phase/2-Pole16AYes
HPS F1 1P2 00321-Phase/2-Pole32ANo
HPS F1 1P2 0032 CB1-Phase/2-Pole32AYes

View Datasheet

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