APC by Schneider Electric SRTL3KRM1UINC Smart-UPS Ultra 3000VA 1U Rack Online UPS with Lithium-Ion Battery
Overview
The APC by Schneider Electric SRTL3KRM1UINC is a 3000VA / 3000W double-conversion online UPS in a 1U rack form factor, purpose-built for dense server rooms, edge deployments, and network closets where floor space is constrained and clean, uninterrupted power is non-negotiable. Unlike standby or line-interactive designs that switch to battery only on failure, double-conversion (online) topology means your connected equipment runs entirely on inverter-conditioned output 100% of the time — so sags, surges, brownouts, and frequency deviations from the utility never reach your gear. The included network management card lets you integrate this UPS directly into your monitoring and alerting infrastructure without an additional purchase.
For power protection solutions in surveillance and IT infrastructure, the SRTL3KRM1UINC represents APC's most space-efficient 3kW online UPS offering. Browse the full APC by Schneider Electric catalog for complementary power and infrastructure products.
Key Features
- Double-Conversion (Online) Topology: Equipment never runs directly off utility power — the inverter continuously regenerates a clean sine wave output. This eliminates the transfer-time risk of standby UPS designs, which matters for servers, NVRs, and IP PBX systems that can fault on even a 4ms gap.
- 3000W True Output Power: Rated at 3 kVA with a 1.0 power factor (3000W), so the VA and watt figures are identical — no derating surprises when loading out high-PF server power supplies. You can deploy to the stated capacity without worrying about a hidden 60–80% derating.
- Pure Sine Wave Output (50/60 Hz): Active PFC power supplies in servers and storage arrays require a true sine wave to operate correctly. Square or stepped-approximation waveforms cause active PFC supplies to fault; this UPS delivers a regulated sine wave on battery, keeping those loads stable through the outage.
- Lithium-Ion Battery: Li-ion chemistry provides substantially faster recharge times and a longer service life compared to traditional VRLA/AGM batteries — critical in environments where back-to-back utility events are possible. It also reduces the unit's footprint and weight compared to a lead-acid equivalent, which matters in high-density 1U rack installs.
- Wide Input Voltage Window (160–275V): Handles utility voltage as low as 160V and as high as 275V before switching to battery. In buildings with aging electrical infrastructure or regions with variable utility quality, this range keeps the UPS running on utility power rather than depleting battery during minor sags.
- 5 AC Outlets (C13 + C19 Mix): The combination of C13 and C19 IEC outlets covers both standard server/switch power supplies (C13) and higher-draw appliances requiring C19 input — useful in mixed-load racks with higher-wattage storage or switching equipment. A Type F (Schuko) input plug is standard for 230V deployments.
- Network Management Card Included: Remote monitoring, shutdown scripting, and integration with data center infrastructure management (DCIM) platforms is available out of the box. No separate card purchase required — relevant for IT teams managing distributed sites where local access for every UPS event is impractical.
- SmartSlot Expansion: The SmartSlot interface allows future accessory cards beyond the included network card — environmental sensors, relay output cards, or alternate management protocols — without replacing the UPS itself.
- USB 2.0 Type-A Port: Provides a local management and firmware update path independent of the network interface, useful during initial commissioning or when network access to the unit is unavailable.
- 55 dB Noise Rating: At 55 dB, this unit is louder than a typical fan-less appliance but consistent with 1U rack-mount power hardware. Plan rack placement accordingly in mixed-use environments — server rooms are fine; open office deployments within 3 feet of occupied workstations may be noticeable.
- Audible Alarms: Local alarm output for on-battery, overload, and fault conditions provides in-room notification independent of the network management card — a useful backup if the network is down during the event you're trying to manage.
Integration & Compatibility
The SRTL3KRM1UINC is built for standard 1U rackmount integration in 19-inch enclosures. The included network management card connects to your existing network infrastructure for SNMP-based monitoring, enabling integration with NMS platforms, DCIM tools, and automated shutdown agents on connected servers. The SmartSlot architecture allows card swaps without replacing the chassis, and the USB Type-A port provides a secondary local management path. The 230V / Type F input configuration is designed for international 230V deployments; verify input voltage and plug compatibility before ordering for North American 120V environments. For deployments protecting IP surveillance recorders, the consistent sine wave output and zero-transfer-time double-conversion topology make this a compatible pairing with network video recorders and server-grade storage systems sensitive to power quality events. See the UPS selection guide for capacity planning methodology when protecting multi-camera recording systems.
Frequently Asked Questions
Q: What is the difference between double-conversion (online) and line-interactive UPS topology, and why does it matter for this unit?
A: In a double-conversion (online) UPS like the SRTL3KRM1UINC, the load runs entirely off the inverter at all times — utility power is converted to DC and back to AC continuously. Line-interactive UPS units pass utility power directly to the load and only switch to battery on failure, introducing a transfer time of 2–8ms. For servers and NVRs with active PFC power supplies, zero transfer time and a continuously regulated sine wave are important for stability during utility events.
Q: Does the SRTL3KRM1UINC include a network management card, or is it sold separately?
A: The network management card is included with the SRTL3KRM1UINC — the product name specifies
