Purpose Of The It-Switch; It-Switch Arrangement; Summary Table Of The Various Functions Available On Models S, Bande - socomec 16A User Manual

SECTION
GENERAL PRESENTATION
1

1. PURPOSE OF THE IT-SWITCH

The IT-SWITCH provides a dual redundant supply to the load(s) from two synchronous and alternating
sources.
The IT-SWITCH senses voltage outages and ensures the load automatically transfers to the alternate source
(seamless for the load).
The IT-SWITCH improves the load power supply reliability. The load can quickly be transferred (either
automatically or manually) from the so called "Preferred" source to the "alternate" source (and vice versa).
Note: this document provides information in terms of safety, connection and using.

2. IT-SWITCH ARRANGEMENT

Three versions of IT-SWITCH are available:
- fixed 19'' standard rack version (model S)
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- fixed 19'' HA rack version (model B)
- hot-swap 19'' rack version (model E), with a manual bypass for replacing the live IT-SWITCH without
interrupting the load power supply.
Both versions can be mounted in standard 19'' cabinets.
2.1. Summary table of the various functions available on models S, B and E
- Type of transfer:
overlapping
synchronous/asynchronous
synchronous type only
- Detection of short circuit on the output
- Counter for successive transfers upon failure
- Hot Swap unit
- Manual by-pass
- Serial link (JBUS)
- Dry contacts
- Selection of priority source
- Event log
- Socket for commissioning and servicing PC
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High Availability
FUNCTIONS
manual
without
UPS/NTA GB/ITS16.F
Standard
IT-SWITCH
Model S
X
sources X
X
X
X
X
X
page 5
HA IT-
Hot swap HA
SWITCH IT-SWITCH
Model B Model E
X X
X X
X X
X X
X X
X X
X
X
X X
X X
X X
X X
X X