STS SERIES (50-600A)

EPI STS, allows instantaneous transfer of power sources to the load. If one power source fails, the STS switches to the back-up power source so fast that the load never recognizes the transfer made

Operating principle
EPI STS guarantees a source of redundant power, allowing the load to be switched between to alternative and independent power sources. Switching can be automatic (when a supply source falls outside of acceptable tolerances) or manually done by an operator from the front panel or remotely.

Protection against environmental disturbances
Overloads and load faults. In the event of an overload, the user can decide the level of intervention of the internal protection devices in order to block the power supply. In the extreme case of a downstream short circuit, EPI STS disconnects the load in order to avoid jeopardizing the operation of the other loads (i.e. in the event of poor selectivity of the protection devices)

Total microprocessor control
Microprocessor control logic ensures:
Fast and safe switching between power sources
Monitoring of all parameters via LCD display
Constant monitoring of SCR operation
Advanced remote diagnostics (RS232 and TCP/IP)

Superior protection
In the event of an output short circuit, EPI STS blocks the transfer between the two power sources, eliminating the risk of propagating the short circuit and its effects to the other loads.

Protection against power supply faults
If one of the two power sources falls outside tolerance levels, EPI STS will transfer the consumers to the second power source (switching is instantaneous if the two sources are in phase).

The layout of the moving components and parts is designed to ensure easy frontal access:

  • Power cable connections that are easily accessed with entry from below
  • Boards housed in a dedicated area for rapid diagnosis / replacement
  • All parts subject to monitoring, maintenance and/or replacement.

STS Series

Static Transfer Switch

50A – 600A

General Specifications

  • Increased power quality
  • Increased noise reduction
  • Power blackout protection
  • Power redundancy
  • Automatic static switching
  • Remote monitoring input power sources
  • Easy static and mechanical transfer to input sources
  • Remote management the power events
  • Power event logging
  • Output current capability up to 1000% for short time
  • 2 years warranty
  • 10 years spare parts support
  • Manufactured according to EC Directive; EN62310