APC by Schneider Electric SCL500RM1UNC 500VA Li-Ion 1U Rackmount UPS
Overview
The SCL500RM1UNC is a 500VA line-interactive UPS in a 1U rackmount form factor, running on lithium-ion battery chemistry — a meaningful departure from the sealed lead-acid packs found in most rack UPS units at this size. The lithium-ion cell extends the battery service life and reduces the replacement cycle burden on IT staff managing dense rack environments. At 120V input and output, it fits directly into standard North American rack deployments without any step-down or conversion hardware.
The 1U chassis measures 4.4H × 43.2W × 23.2D cm, fitting cleanly into a single rack unit with the included mounting support rails. The black enclosure with silver front bezel matches standard rack aesthetics in server rooms and telecom closets. Four NEMA outlets provide protected power distribution for connected equipment.
Key Features
- Lithium-Ion Battery: Li-Ion chemistry delivers longer battery service life compared to traditional VRLA/AGM cells — fewer scheduled replacements, lower long-term maintenance overhead in high-density rack installations.
- 1U Rack Form Factor: At 4.4 cm tall, the SCL500RM1UNC occupies a single rack unit. The included rack mounting support rails mean no separate hardware sourcing is needed for standard 19-inch rack installation.
- Line-Interactive Topology: Automatic voltage regulation (AVR) handles input sags and surges without switching to battery — preserving battery charge cycles for actual outages rather than routine voltage events.
- 120V In/Out: Native 120V operation integrates directly with standard North American circuits. No transformer or PDU conversion required between the UPS and connected equipment.
- USB Connectivity: The included USB cable enables graceful shutdown integration with connected servers or NVRs, allowing safe power-down sequences during extended outages rather than hard-cuts at battery depletion.
- 4x NEMA Outlets: Four protected output receptacles handle a small cluster of rack-mounted devices — suitable for powering a network switch, NVR, and access control panel simultaneously from a single protected source.
Integration & Compatibility
The SCL500RM1UNC ships with software on CD and a USB cable, supporting integration with server and NVR shutdown management utilities via the USB management interface. The UPS and power protection category includes complementary options for higher-VA requirements or extended runtime needs. For broader APC by Schneider Electric rack power products, including higher-capacity Smart-UPS models and APC power distribution units, the full APC lineup is available. Pairing with a managed network switch on the same protected circuit ensures your network infrastructure stays up during brief outages. For network video recorders in security deployments, a 1U UPS at this power level typically covers a standalone NVR and its associated switch through short outages.
What's in the Box
- 1x APC SCL500RM1UNC UPS unit
- 1x CD with Software
- 1x Documentation CD
- 1x Rack Mounting Support Rails
- 1x USB Cable
Frequently Asked Questions
Q: What battery type does the SCL500RM1UNC use, and why does it matter?
A: The SCL500RM1UNC uses a lithium-ion (Li-Ion) battery, unlike most rack UPS units at this size class that use sealed lead-acid (VRLA/AGM) cells. Li-Ion delivers a longer service life and reduced replacement frequency — relevant if you're managing multiple rack positions and want to reduce scheduled maintenance cycles.
Q: Does the SCL500RM1UNC include rack mounting hardware?
A: Yes. Rack Mounting Support Rails are included in the box. The unit fits a standard 19-inch rack in 1U of space (4.4 cm tall, 43.2 cm wide).
Q: What is the input and output voltage of the SCL500RM1UNC?
A: Both input and output are 120V, making it a direct fit for standard North American electrical infrastructure with no step-up or step-down conversion needed.
Q: How does the USB cable connect to managed shutdown software?
A: The included USB cable connects the SCL500RM1UNC to a server or NVR, enabling the bundled software (included on CD) to trigger graceful shutdowns during extended outages — preventing data corruption from hard power cuts.
Q: Can the SCL500RM1UNC handle both a network switch and an NVR on the same unit?
A: The unit provides four NEMA outlets, which is sufficient to power a small cluster of devices. Whether a specific NVR and switch combination falls within the 500VA capacity depends on the combined load of those devices — check the wattage draw of your connected equipment against the UPS output capacity before deployment.
The SCL500RM1UNC stands out in the 1U rack UPS segment specifically because of its lithium-ion battery chemistry. In physical security rack builds — where you might have an NVR, a PoE switch, and an access control head-end all drawing from the same protected circuit — the reduced replacement cadence of Li-Ion versus VRLA matters more than most buyers initially factor in. A sealed lead-acid pack in a 500VA unit at this duty cycle typically needs replacement every 3–4 years; Li-Ion extends that meaningfully, reducing the total cost of rack ownership over a 7–10 year infrastructure lifecycle.
Technical Highlights:
- Li-Ion Battery Chemistry: Longer service intervals versus VRLA — fewer unplanned maintenance windows in production rack environments.
- 1U / 4.4 cm Profile: At 43.2 cm wide and 23.2 cm deep, this fits standard 19-inch racks with room to spare in shallow-depth telecom and security enclosures.
- USB Management Interface: Enables software-driven graceful shutdown — critical for NVR deployments where an unclean power cut risks database corruption on active recording volumes.
Deployment Considerations:
- The included rack mounting support rails cover standard 19-inch installation, but verify your rack's rail compatibility (square-hole vs. threaded) before mounting day — APC rails have historically required adapters in some older round-hole racks.
- At 500VA, this unit is sized for a light load cluster. Confirm the combined wattage draw of your NVR, switch, and any access control hardware stays comfortably below the VA rating — plan for no more than 60–70% of rated capacity for reliable runtime.
The SCL500RM1UNC is a well-suited fit for compact physical security rack builds: a single NVR, a small PoE switch, and an access control panel in a 2–4U enclosure where lithium-ion battery longevity reduces site visit frequency over a multi-year service contract.
