Battery
Battery technology	Lithium-Ion (Li-Ion)
Battery voltage	180 V
Typical backup time at full load	5.25 min
Battery life (max)	10 year(s)
Battery recharge time	1.5 h
Automatic battery test
Cold start
Certificates
Compliance certificates	CE, RoHS
Design
Form factor	Rackmount
Rack capacity	2U
Product colour	Black
Display type	LCD
International Protection (IP) code	IP20
Features
UPS topology	Double-conversion (Online)
Output power capacity	5 kVA
Output power	5000 W
Waveform	Sine
Input operation voltage (min)	180 V
Input operation voltage (max)	275 V
Input frequency	40/70 Hz
Output operation voltage (max)	220 V
Output frequency	50/60 Hz
Surge energy rating	1260 J
Heat dissipation	931 BTU/h
Power factor	1
Output power factor	1
Crest factor	3:1
Output voltage Total Harmonic Distortion (THD)	2%
Noise level	55 dB
Emergency Power Off (EPO)
Auto-restart
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 - 3048 m
Non-operating altitude	0 - 15240 m
Other features
Nominal output voltage	230 V
Nominal input voltage	230 V
Packaging content
Management card included
Packaging data
Package width	585 mm
Package depth	984 mm
Package height	392 mm
Package weight	38.5 kg
Ports & interfaces
AC outlet types	C13 coupler, C19 coupler
Power plug	Hardwire
AC outlets quantity	10 AC outlet(s)
Serial ports quantity	1
USB port
Serial interface
SmartSlot
SmartConnect port
Sustainability
Sustainability certificates	Green Premium
Sustainability compliance
Weight & dimensions
Width	432 mm
Depth	701 mm
Height	86 mm
Weight	29.2 kg

The APC Smart-UPS Ultra On-Line SRTL5KRM2UI is a high-performance, rack-mountable UPS in 2U format, specifically designed for IT professionals and network administrators who need to ensure the operational continuity of critical systems. With an output power of 5000 W and an apparent power of 5000 VA, it delivers pure sine wave power, optimally protecting sensitive equipment such as servers, storage systems, and network switches. The double-conversion topology (online) ensures that connected devices are always supplied with clean power — even during power outages, the switch to battery backup occurs without interruption, preventing data loss and system failures.

The unit features 10 IEC outlets (6x C13 and 4x C19), enabling flexible connection of various IT devices. The integrated network card supports remote monitoring and control via SNMP and enables the use of PowerChute Network Shutdown software. This software ensures controlled shutdown of physical servers, virtual machines, and hyperconverged infrastructures (HCI) in case of impending battery depletion, thereby avoiding hardware damage and data loss. The UPS is also compatible with EcoStruxure IT or third-party management platforms, facilitating integration into existing IT infrastructures.

A key advantage of the SRTL5KRM2UI is the use of Lithium-Ion batteries (Li-Ion). These offer a significantly longer lifespan (up to 10 years), are more compact, and approximately 30% lighter than conventional lead-acid batteries, reducing space requirements and simplifying installation. The Li-Ion technology also enables better performance at high ambient temperatures (up to 40 °C) and reduces total cost of ownership over the UPS lifespan by up to 53% compared to lead-acid systems. Runtime can be extended by up to 9 additional external battery packs (SRTL180RM2UBP), enabling several hours of backup power.