Protect STS Static Transfer Switch

Static Transfer Switches (STS) transfer supply between independent one-phase or three-phase AC power sources. Unlike traditional automatic transfer switches (ATS), STS provides 20 times faster load transfer, which ensures the uninterrupted operation of even the most sensitive electronic equipment. Load retransfer to preferred input source is virtually instantaneous.

Key Features

- Three redundant power supplies
- User friendly control panel
- Fail-Safe CMOS logic
- Internal redundancy for power supply systems and SCR drivers
- Easy to install
- Easy to operate
- Low installation and maintenance costs
- Manual bypass
- Neutral dimensioned for 200 % of nominal current

Documents

Product sheet:
Protect STS (English)

  • STS 1

    Description

  • STS 2

    Description

  • STS 3

    Description

Standards

- EN 60950
- EN 50178 (project)
- IEC 600076
- IEC 60146-1-2
- IEC 60529
- IEC 60617
- EN 50082-2
- DIN 41773 Part 1

Versions

- 63 A, 150 A, 250 A, 400 A 2 poles
- 63 A, 150 A, 250 A, 630 A, 1000 A 3 poles
- 63 A, 150 A, 250 A, 630 A, 1000 A 4 poles
- 63 A, 2 poles, 3 poles and 4 poles as 19 inch rack version