Battery
Battery technology	Sealed Lead Acid (VRLA)
Battery capacity	108 VAh
Typical backup time at full load	5.9 min
Typical backup time at half load	19.4 min
Battery life (max)	5 year(s)
Battery recharge time	5 h
Hot-swap battery
Automatic battery test
Certificates
Compliance certificates	RoHS
Certification	C-tick, CE, GOST, VDE, PEP, EOLI
Design
Form factor	Rackmount/Tower
Rack capacity	1U
Product colour	Grey
LED indicators	Battery replacement
Features
UPS topology	Line-Interactive
Output power capacity	0.45 kVA
Output power	280 W
Waveform	Sine
Input operation voltage (min)	151 V
Input operation voltage (max)	302 V
Input frequency	50/60 Hz
Surge energy rating	320 J
Hold time (min)	4 ms
Hold time (max)	8 ms
Noise level	38 dB
Surge protection features	Digital Subscriber Line (DSL), Fax, Modem, Network
Audible alarm modes	Low battery alarm, Overload alarm
Automatic Voltage Regulation (AVR)
Surge protection
Audible alarm(s)
Auto-restart
Logistics data
Products per pallet	24 pc(s)
Harmonized System (HS) code	85078000
Total carbon footprint (kg of CO2e)	484.92
Operational conditions
Operating temperature (T-T)	0 - 40 °C
Storage temperature (T-T)	-15 - 45 °C
Operating relative humidity (H-H)	0 - 95%
Storage relative humidity (H-H)	0 - 95%
Operating altitude	0 - 3000 m
Non-operating altitude	0 - 15000 m
Other features
Nominal output voltage	230 V
Packaging content
Cables included	RS-232
Rack mount kit
Management card included
Manual
Packaging data
Package width	476 mm
Package depth	589 mm
Package height	164 mm
Package weight	11.7 kg
Software CD
Ports & interfaces
AC outlet types	C13 coupler
Power plug	C14 coupler
AC outlets quantity	4 AC outlet(s)
Number of output IEC jumpers	2
Serial interface type	RS-232
Serial ports quantity	1
Serial interface
SmartSlot
SmartConnect port
Weight & dimensions
Width	432 mm
Depth	383 mm
Height	44 mm
Weight	10.2 kg

The APC Smart-UPS SC450RMI1U is a Line-Interactive UPS with an output capacity of 0.45 kVA and an output power of 280 W, specifically designed for use in small and medium-sized enterprises. The device protects IT resources such as servers, network equipment, POS systems, and medical devices from power outages, voltage fluctuations, and overvoltages. The nominal output voltage is 230 V, with an input voltage range of 151 V to 302 V, enabling high tolerance to mains voltage fluctuations. The automatic voltage regulation ensures that connected devices receive stable power even with irregular mains voltages, without activating the internal battery. This increases battery lifespan and reduces power consumption during normal operation.

Applications include protecting network and server infrastructures in offices, small data centers, or medical facilities. The UPS is suitable for rack mounting (1U) or as a tower unit, allowing flexible integration into existing IT infrastructures. The product color is gray, and the device features a compact design with dimensions of 432 mm (width) × 383 mm (depth) × 44 mm (height). The operating temperature ranges from 0 °C to 40 °C, enabling use in standardized server rooms.

Functions and equipment in detail include four AC outlets with C13 connectors, suitable for powering end devices. Two output IEC jumpers are also integrated to provide flexible power supply options. The serial interface (RS-232) enables communication with a server or management system. The included management software PowerChute Business Edition supports configuration of safe system shutdowns and offers features such as automatic risk assessment and runtime capacity calculation. The software is compatible with common operating systems and can be used for other Smart-UPS models when expanding the IT infrastructure later.

Technology explained simply is based on the Line-Interactive topology, where voltage fluctuations are compensated via automatic voltage regulation (AVR) without activating the internal battery. The UPS switches to battery inversion only during a complete power outage or critical voltage fluctuation. The waveform is a sine wave, which is important for sensitive IT equipment as it ensures clean and stable power supply. The hold-up time ranges from 4 ms to 8 ms, sufficient to ensure a safe transition to battery power. The battery technology is sealed lead-acid (VRLA) with a capacity of 108 VAh. Typical backup time is 5.9 minutes at full load and 19.4 minutes at half load. The battery recharge time is 5 hours, and the battery can be replaced in hot-swap mode without interrupting operation. An automatic battery test regularly checks the battery condition.

Compatibility and accessories include support for DSL, fax, modem, and network via integrated surge protection functions. The UPS comes with a rack mounting kit and an RS-232 cable included in the delivery. A software CD with PowerChute Business Edition and an operating manual are also part of the delivery. Suitable accessories include batteries such as the RBC18, as well as service packages for warranty extensions.

Mounting and installation can be performed either in a 19-inch rack or in tower mode. Rack mounting is done using the included brackets, with instructions provided in the manual. Installation requires connecting the battery, as described in the manual. The pressure rise protection function protects the device against overloads. Audible signals indicate low battery charge or overload conditions.

Operational advantages include low noise level (38 dB), high efficiency in normal operation, and the ability to expand IT infrastructure step by step without changing the management software. The certifications include CE, C-tick, GOST, VDE, PEP, and EOLI, as well as compliance with RoHS. The battery lifespan is up to 5 years, with the hot-swap function ensuring continuous availability. The UPS is not intended for consumer use in the EU but for professional IT environments.