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It is an automatic UA controller of source changeover system for ComPact NSX, ComPact NS and MasterPact devices. It allows the transfer from one source to another one, the engine generator set start-up and the load shedding. It may be installed directly on the Transferpact ACP control plate or mounted on the front panel of the switchboard. The control voltage is from 380VAC to 415VAC 50/60Hz, or 440VAC 60Hz.
Products specifications
| Attribute name | Attribute value |
|---|---|
| Main | |
| Device short name | UA |
| Product name | UA |
| Product or component type | control unit |
| Range of product | MasterPact NW, ComPact NS630b...1600, Compact NS100...630, MasterPact NT |
| Complementary | |
| [Us] rated supply voltage | 440 V AC at 60 Hz, 380...415 V AC at 50/60 Hz |
| Local signalling | on, fault trip, off |
| Test function | by pressing the test button on the front of the controller |
| Input type | contacts customer voluntary order to transfer to source R |
| Compatibility code | UA |
| [Ie] rated operational current | DC-13: 2 A 24 V, AC-12: 5 A AC 380/415 V, AC-12: 4 A AC 440 V |
| Selection modes | circuit breaker on R, circuit breaker on N |
| Output type | contacts customer: indication of operation in automatic or stop mode |
| Genset exerciser | adjustable delayed shutdown, startup control |
| Operating mode | automatic operation, forced operation on replacement source, forced operation on normal source, stop (both normal and replacement source off) |
| Complementary function | selection of type of normal source (single-phase or three-phase), forced normal source if replacement source not operational during peak-tariff, voluntary transfer to replacement source (e.g. energy management commands), setting of maximum startup time for the replacement source, additional contact: transfer to replacement source only if contact is closed |
| [Ith] conventional free air thermal current | 8 A |
| Interlocked device | MasterPact NT, Compact NS100...630, MasterPact NW, Compact NS630b...1600 |
| Environment | |
| IP degree of protection | IP30 side: conforming to EN 60529, IP40 front: conforming to EN 60529, IP20 connectors: conforming to EN 60529 |
| Standards | IEC 947-5-1 |
| IK degree of protection | front: IK07 conforming to EN 50102 |
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