UPS bypass input with galvanic insulation of separate bypass line
Remove jumpers between SWIN disconnectors and SWBY, if they are present
UPS bypass input with galvanic insulation on separate line rectifier
Remove jumpers between SWIN disconnectors and SWBY, if they are present
UPS with a separate bypass supply connected to an independent mains supply and with galvanic insulation on
both input lines
Remove jumpers between SWIN disconnectors and SWBY, if they are present
>11.7 SEPARATE LINE INPUT
All MST UPS within the range 10÷40 kVA are supplied with common inputs for rectifier and bypass stages.
Moreover, UPS may be kitted out on factory with separate lines (“Dual Input” Version).
Standard UPS may turns to “Dual Input” version even on site, thanks to the installation of dedicated kit carried out
by authorised personnel, properly trained on this regard.
Installation kits are three in connection with the UPS sizes (MSM 10÷20; MST 10÷20; MST 30÷40).
If UPS moves from single Input to “Dual Input” version, UPS protections should be sized accordingly (refer to
installation manual).
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