Text for tenders: Power STS single phase


Power STS single phase

Static Transfer Switch Power STS single phase

With the help of an STS (static transfer switch)

increased redundancy can be realised in a sensitive

environment. The STS switches between two independent

power supplies. If a supply fails or maintenance work

has to be carried out on a supply, the STS switches

to the second supply in a few milliseconds. In this

way active components in a data centre for example

which only occupy one power pack get a redundant

voltage. In addition to the automatic switching it is

possible to select the input source with a manual

bypass. The STS will also switch over the phase and

the zero conductor. This technology prevents

connected equipment being damaged by equalising

current. With the Hot Plug Function the STS allows

itself to be exchanged without separating the load.

Monitoring The STS has floating contacts which pass

on the error messages to a superior monitoring

system, e.g. CMC-TC. The STS can be incorporated into

a building control system with the help of the

MOD/J-Bus.

Connection options:

. 2 x IEC320 16 A IEC320 C19

. 4 x IEC320 16 A IEC320 C19

. 5 x floating contacts (load on source 1,

 Load on source 2, priority source

 Transfer not possible, collective fault)

. 1 x MOD/J -Bus

Technical fittings:

. Switching time under 5 ms

. Automatic and Manual Transfer

. All pin switching

. Synchronous/Asynchronous Transfer

. Break before Make Transfer

. Flying Transfer

. Automatic back transfer

. Integrated manual bypass

. Measurement of output current

. Alarm/message history

. 5 floating contacts

. Hot Swap capability

. MOD/J-Bus, serial interface

. Fault current measurement at output

Operating panel:

. 2 LEDs dor priority source

. 2 LEDs for voltage at source one and two

. 2 LEDs supply through source one and two

. 1 LED transfer blocked

. 1 LED transfer possible

. 1 LED recognition of short circuit, hand switching

. 1 LED collective fault

. LED for hand bypass

. Manual bypass

Technical specifications:

. Input voltage: 120/220/230/240 V +/- 10%

. Frequency: 50/60 Hz

. Phase tolerance Q1/Q2 for interruption free

transfer: 15°

. Temperature application range: +5°C - +40°C

. Humidity application range: 5% to 90% rel. humidity,

non condensing

. IP protection category: IP21 as per EN 60529

. 3U 482.6mm (19") enclosure

. W x H x D [mm]: 484 x 133 x 400



Manufacturer: Rittal
Type: Power STS single phase   DK 7857090
or equivalent


Quantity  Unit         Price Each                 Price Total
   
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