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. 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 C19

. 4 x IEC320 16 A C20

. 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

. Asynchronous Transfer

. Break before Make Transfer

. Flying Transfer

. Automatic back transfer

. Measurement of output current

. Alarm/message history

. 5 floating contacts

. MOD/J-Bus, serial interface

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

. Optional 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: +5C - +40C

. Humidity application range: 5% - 90% relative

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 7857070
or equivalent


Quantity  Unit         Price Each                 Price Total
   
_____     ______       ____________               ____________
