© <9 @ DATACENTRE INDUSTRY TRANSPORT ^rielloups Master Static Bypass • Flexibility • The ideal solution for installations with UPS in parallel greater than 1 MvA • High system reliability • Centralised diagnostics The centralised bypass is an alternative to the distributed bypass. Technically the two solutions fulfil the same purpose, i.e. to guarantee power continuity, but have different architectures. Whilst it is true that distributed bypass solutions are the most common due to their flexibility of use and low initial cost, it is also true that in the medium/large data centre market centralised bypass solutions are preferable in terms of technical performance, footprint and sometimes cost, above all in large installations where the number and type of protections as well as system wiring have an impact. The data centre and data-storage market in general is destined for large growth. It is therefore important to respond to the various requirements with flexible solutions that are able to adapt to the growing demands of the market in terms of the levels of power and performance required. Flexibility The Riello UPS centralised bypass (named MSB) is available in four standard power ratings: 800, 1200, 2000 and 3000 kVA. Intermediate solutions within this range can be made, as well as solutions greater than 3000 kVA based on the requirements of the customer or application. The MSB centralised bypass can be integrated with the Master HP range; in fact it can be associated with up to 7 UPS modules in the range, obviously without static bypass and associated bypass line

(named MHU). Based on requirements, MSB can also be compatible with the Master MPS range, thus ensuring complete flexibility aimed at satisfying all power and power supply requirements. Riello UPS provides the same flexibility as the Master HP for the battery bus, so that the MHU units can operate with both shared or separate batteries. The 800 kVA MSB is supplied with a comprehensive cabinet including bypass line input switch (SWBY), system output switch (SWOUT) and manual bypass (SWMB). The 1200 kVA model is supplied as standard without any switches but can be equipped with the same, suitably...

PRODUCT ACCESSORIES Top Cable Entry cabinets IP rating IP31/IP42 Manoeuvring switches Digital I/O and Generator interface SWOUT SWOUT SWMB SWBYP SEE MASTER HP DIGITAL I/O AND GENERATOR INTERFACE SWIN ACCESSORIES NETMAN 204 MULTICOM 302 MULTICOM 352 MULTICOM 401 MULTI I/O Interface kit AS400 MULTIPANEL RTG 100 56K Modem GSM Modem The use of the MSB centralised bypass centralises the diagnostics and control of the bypass line. The display provides information concerning the voltage and current supplied and the status of the individual UPS modules (MHU). Differently from a system with distributed...

OPERATING SPECIFICATIONS Nominal power (kVA) Nominal voltage Input voltage tolerance Frequency Frequency tolerance Standard equipment provided Permitted overload* 800 1200 2000 3000 380 - 400 - 415 Vac three-phase + N ± 15% (selectable from ± 10% to ± 25% from front panel) 50/60 Hz ± 2% (selectable from ± 1% to ± 6% from front panel) Back Feed protection 110% for 60 min; 125% for 10 min; 150% for 1 min ENVIRONMENTAL SPECIFICATIONS Noise at 1 m from front (from 0 to full load) Storage temperature Operating temperature Relative humidity Max. installation height Reference standard -10 °C up to +50...