Riello Sentinel Dual SDL 3300 User Manual

•  Can be installed on the floor (tower 

version) or in rack mount cabinets (rack 
version). The display panel can be rotated 
(using the key supplied)

•  Low noise (<40 dBA): can be installed 

in any environment thanks to its high 
frequency switching inverter and PWM 
load-dependent digitally controlled fan.

•  External bypass option for maintenance with 

interruption-free switching (5-6-8-10 kVA 
SDL)

•  Operation guaranteed up to 40°C (the 

components are designed for high 
temperatures and are thus subject to less 
stress at normal temperatures)

•  Two built-in IEC output sockets with thermal 

protection (5-6-8-10 kVA SDL)

•  On the 5-6-8-10 kVA models, it is also 

possible to program two 10 A output 
sockets when the mains power supply fails 
(PowerShare function).

Functions can be programmed via software 
or manually via the front display panel.
•  On line
•  Economy Mode: to increase efficiency (up 

to to 98%), allows for the selection of Line 
Interactive technology (VI) to power low 
priority loads from the mains supply

•  Smart Active: the UPS automatically 

decides upon the operating mode (VI or 
VFI) based on the quality of the mains 
power supply

•  Emergency: the UPS can be selected 

to function only when the mains power 
supply fails (emergency only mode).

•  Frequency converter operation (50 or 60 

Hz).

•  Even with non-linear loads (IT loads with a 

crest factor of up to 3:1)

•  High short circuit current on bypass
•  High overload capacity: 150% by inverter 

(even with mains failure)

•  Filtered, stabilised and reliable voltage 

(double conversion on-line technology 

(VFI compliant with EN62040-3)), with 
filters for the suppression of atmospheric 
disturbances.

•  Power factor correction: UPS input power 

factor close to 1 and sinusoidal current 
uptake.

•  Automatic and manual battery test
•  Reduced ripple component (detrimental 

to the batteries) using a low ripple current 
discharge (LCRD) system

•  Batteries are user replaceable without 

switching off equipment and without 
interruption to the load (Hot Swap)

•  Unlimited extendible runtime using 

matching Battery Boxes

•  The batteries do not cut in during mains 

failures of <40 ms (high hold up time) or 
when the input supply is between 84 V to 
276 V.

This configuration ensures the operation 
of those emergency systems that require 
continuous, reliable and long-lasting power 
supply in the event of a mains power failure, 
such as emergency lighting, fire detection/
extinguishing systems and alarms. When the 
mains power supply fails, the inverter begins 
powering the loads with a progressive start-
up (Soft Start) in order to prevent overload.

The wide input voltage range and a high 
hold-up time minimise battery usage and 
increase efficiency and battery life; for   
smaller power breaks, energy is drawn from 
a group of appropriately-sized capacitors.

Two 10 A configurable IEC output sockets allow 
for runtime optimisation by programming the 
switching off of low priority loads on mains 
failure; alternatively, emergency loads that are 
normally not powered when mains is present 
can be activated.

•  Selectable output voltage (220-230-240 V)
•  Auto-restart when mains power is restored 

(programmable via software)

•  Bypass on: when the machine is switched 

off, it automatically goes into bypass and 
battery charge mode

•  Minimum load switch-off
•  Low battery warning
•  Start-up delay
•  Total microprocessor control
•  Automatic bypass without interruption
•  Use of IMS modules (Insulated Metallic 

Substrates)

•  Status, measurements and alarms 

available on standard backlit display

•  UPS digital updating (flash upgradeable)
•  Input protection via resettable thermal 

switch

•  Back-feed protection standard: to prevent 

energy from being fed back to the network

•  Manual switching to bypass.

•  Advanced multi-platform communications 

for all operating systems and network 
environments: PowerShield

3

 monitoring 

and shutdown software for Windows 
operating systems 8, 7, 2008, Vista, 2003, 
XP, Linux, Mac OS X, Sun Solaris, Linux, 
VMWare ESX and other Unix operating 
systems

•  Plug and play function
•  USB port
•  RS232 serial port
•  Slot for installation of communications 

boards.