APC Smart-UPS Ultra On-Line Li-Ion 3kVA 1U Short Depth

The APC Smart-UPS Ultra On-Line Li-Ion 3kVA 1U Short Depth (SRTL3KRM1UC) is a true double-conversion on-line UPS engineered for high-density, space-constrained edge deployments. Its ultra-short rack depth fits in shallow-depth open-frame and wall-mount enclosures where conventional 1U UPS units cannot, making it a purpose-built solution for distributed IT infrastructure. The lithium-ion battery chemistry delivers a significantly longer service life and substantially reduced weight compared to equivalent VRLA-based units, lowering the total operational burden across large distributed fleets.

Operating in true double-conversion (on-line) mode, the SRTL3KRM1UC continuously regenerates a clean, regulated sine-wave output that is fully isolated from utility anomalies including surges, sags, harmonics, and frequency variations — providing zero transfer time to battery. The unit supports hot-swappable battery modules, allowing runtime extension or battery replacement without load downtime. Network management is supported via the integrated Network Management Card slot, enabling remote monitoring and automated shutdown integration through APC's EcoStruxure IT ecosystem.

At 3000VA / 2700W, the unit is sized to protect critical edge workloads including compact server nodes, hyperconverged infrastructure appliances, networking switches, and storage arrays installed in branch offices, retail locations, or industrial edge cabinets. The 1U form factor combined with the short rack depth profile allows deployment in enclosures as shallow as 400 mm, a dimension that disqualifies most competing on-line UPS products. Automatic voltage regulation (AVR) and a wide input voltage window further reduce battery cycling frequency, extending overall battery longevity in environments with marginal power quality.

Ideal for

• Protecting hyperconverged infrastructure nodes and compact rack servers in enterprise branch office or retail edge cabinets with limited rack depth
• Providing zero-transfer-time, conditioned power to mission-critical Layer 2/3 network switching equipment in shallow-depth wall-mount or open-frame enclosures
• Supporting industrial edge computing appliances in manufacturing or logistics environments where power quality is variable and physical space is constrained
• Enabling high-availability power protection for medical or clinical workstation cabinets where rack depth restrictions and clean power requirements are both mandatory
• Underpinning distributed micro-data-center deployments managed centrally via APC EcoStruxure IT, with SNMP/web-based remote monitoring and automated graceful shutdown
• Replacing aging VRLA-based UPS units in existing shallow-rack installations to reduce weight load, extend battery service intervals, and improve runtime-to-weight ratio

Technical specifications

Available from Omnixon Global. Submit an RFQ and our team will confirm configuration and availability for your order.