APC by Schneider Electric SRTL2K2RM1UNC 2200VA 1U Rack Online UPS
Overview
The APC by Schneider Electric SRTL2K2RM1UNC is a 2200VA / 1950W online double-conversion UPS in a 1U rack form factor, built for IT closets, edge deployments, and surveillance infrastructure where utility power quality is unreliable and downtime is not acceptable. Unlike standby or line-interactive topologies, the on-line double-conversion design means your equipment is always running off the inverter — there is zero transfer time during a power event. It ships with an embedded network management card (NMC3) and Li-Ion battery, making it a ready-to-manage node out of the box.
Key Features
- On-Line Double-Conversion (2200VA / 1950W): Load never touches raw utility power — the inverter provides continuous, regulated 120V AC sine wave output. Harmonic-sensitive equipment like NVRs, servers, and IP PBX systems get clean power regardless of what is happening upstream.
- 1U Rack / Tower Convertible: Fits a single rack unit, leaving room for the equipment it protects. The included mounting brackets and support rails let you rack it in a standard 2-post or 4-post enclosure; the tower conversion kit is also in the box for pedestal installs.
- Li-Ion Battery (50V, APCRBC173-LI): Lithium-Ion chemistry recharges fully in approximately 1.5 hours — roughly 3–4× faster than VRLA — and typically outlasts lead-acid by a significant margin, reducing replacement frequency in unmanned edge sites. Replacement battery is the APCRBC173-LI.
- Embedded Network Management Card 3 (NMC3): No add-on card required. The preinstalled NMC3 provides remote monitoring, shutdown scripting, and environmental sensor support over the network. Pair with APC EcoStruxure or any SNMP-capable NMS to integrate into your existing monitoring stack.
- 6 Output Receptacles (5× NEMA 5-20R + 1× NEMA L5-20R): The mix of standard and locking outlets covers both typical rack PDU daisy-chains and direct locking connections for critical single loads. Input is NEMA 5-20P — confirm your circuit is 20A-rated before install.
- Internal Bypass (Automatic and Manual): Automatic bypass keeps loads energized if the inverter faults; manual bypass enables UPS servicing without dropping the load — a practical requirement in 24/7 surveillance and access control environments.
- Battery Charging Power of 448W: High charge rate supports the fast Li-Ion recharge cycle. On a mixed load with partial discharge events (brief outages), the unit is back to full capacity quickly between events.
- Multi-Function LCD + Audible/Visual Alarms: Status and alarm severity are surfaced locally on the control panel and prioritized by severity — useful for field techs who need a quick health check without logging into the NMC.
- IP20 Enclosure, 55 dB Acoustic Level: IP20 is suitable for standard indoor rack environments. At 55 dB, fan noise is noticeable in a quiet room — factor this into deployments in office-adjacent or low-noise spaces.
Integration & Compatibility
The SRTL2K2RM1UNC connects via USB, serial, and the embedded NMC3 network port. It ships with an RJ45 cable, USB cable, and country-specific detachable power cord. The unit is UL/cUL listed and meets UL 1778, CSA C22.2 No.107.3-05, and FCC Part 15 Class A — confirming suitability for commercial IT and security rack environments. Operating altitude is rated to 10,000 ft; storage up to 50,000 ft. For extended runtime on critical loads, the unit supports external battery packs (extendable runtime: yes). Review the UPS category for compatible runtime extension modules and the APC by Schneider Electric line for matching PDUs and rack enclosures. If you are sizing power protection for a full surveillance rack, see our NVR and recorder selection and power protection planning guide.
What's in the Box
- 1× APC Smart-UPS Ultra SRTL2K2RM1UNC UPS unit
- 1× RJ45 cable
- 1× USB cable
- 1× Country-specific detachable power cord (7.9 ft / 2.4 m)
- 1× Rack mounting brackets
- 1× Rack mounting support rails
- 1× Installation guide
- 1× Warranty card
Frequently Asked Questions
Q: What UPS topology does the SRTL2K2RM1UNC use, and why does it matter for sensitive equipment?
A: It uses on-line double-conversion. Your load runs continuously off the inverter — there is no transfer time during a power failure. This eliminates the brief gap that line-interactive and standby units have, which matters for NVRs, switches, and access control panels that can drop connections or corrupt data during even a millisecond-long interruption.
Q: What type of battery does the SRTL2K2RM1UNC use, and how long does it take to recharge?
A: It uses a Lithium-Ion (Li-Ion) battery at 50V, model APCRBC173-LI. Typical recharge time is approximately 1.5 hours to full capacity — substantially faster than conventional VRLA batteries. The 448W charging power supports this fast cycle.
Q: Does the SRTL2K2RM1UNC include a network management card?
A: Yes. A Network Management Card 3 (NMC3) is preinstalled — no additional card is required. It provides SNMP-based remote monitoring, shutdown scripting, and environmental sensor support over your LAN.
Q: What output receptacles are on the SRTL2K2RM1UNC?
A: There are six output receptacles: five NEMA 5-20R (standard 20A) and one NEMA L5-20R (locking 20A). Input is NEMA 5-20P — ensure the wall circuit is rated for 20A before installation.
Q: Can the SRTL2K2RM1UNC be installed in a tower configuration?
A: Yes. The unit ships with a rack/tower convertible kit. Use the included rack mounting brackets and support rails for 1U rack mounting, or configure it as a tower for pedestal installs.
Q: What certifications does the SRTL2K2RM1UNC carry?
A: It is UL/cUL listed and meets UL 1778, CSA C22.2 No.107.3-05, and FCC Part 15 Class A standards — appropriate for commercial IT, security, and surveillance rack deployments.
The SRTL2K2RM1UNC sits in a specific sweet spot: a 1U online UPS with an embedded NMC3 and Li-Ion chemistry. Most 1U units at this capacity ship with VRLA and an open card slot, meaning you are buying add-ons and waiting on a 4–6 hour recharge before the site is fully protected again. The 1.5-hour Li-Ion recharge on this unit is the spec that changes the maintenance calculus for edge and remote sites.
Technical Highlights:
- On-Line Double-Conversion at 1950W: Full load capacity at 2200VA / 1950W with zero-transfer-time topology — the right spec when protecting NVRs or access control servers that cannot tolerate even a sub-cycle gap.
- Li-Ion at 448W Charge Rate: The 448W battery charging power delivers a full recharge in ~1.5 hours. On sites that take multiple brief outages per day (common in areas with grid instability), this prevents cumulative partial-charge degradation that shortens VRLA life.
- Preinstalled NMC3: Remote visibility, shutdown scripting, and environmental monitoring are available from first power-on with no card purchase or slot allocation required — important in dense 1U racks where card slots are at a premium.
Deployment Considerations:
- Input is NEMA 5-20P — verify the local circuit is 20A dedicated before racking. A shared 15A circuit will trip under full load (1950W draw approaches the 80% continuous loading rule on a 15A/1800W circuit).
- At 35.05 lb and 1U, this is dense — use the included support rails, not just the front rack ears, to avoid chassis flex over time.
Best fit: edge IT closets, surveillance head-end racks, and access control server rooms where the combination of fast Li-Ion recharge, embedded management, and zero-transfer-time protection justify the 1U slot investment over a simpler line-interactive unit.
