Middle Atlantic RLNK-1000R-8 vs Middle Atlantic UPX-EXPANRUN-OL10: Specification Comparison
Both the Middle Atlantic UPX-RLNK-1000R-8 and UPX-EXPANRUN-OL10 are 1000VA, 2RU rack-mount NEXSYS-platform UPS units sharing identical physical form factors, input requirements, and operating environments. The critical distinction is functional role: the RLNK-1000R-8 is a self-contained UPS with RLNK intelligent outlet control, while the UPX-EXPANRUN-OL10 is a run-time expansion unit designed to extend battery backup duration when paired with a compatible NEXSYS base UPS. Buyers cross-shopping these should confirm they understand the expansion unit's dependency on a host UPS.
In This Guide
- Is this a standalone UPS or a dependent run-time expansion unit?
- How do the physical dimensions, weight, and electrical interface specs compare?
- What certifications, compliance markings, and warranty terms apply to each unit?
- Which should you choose: the RLNK-1000R-8 or the UPX-EXPANRUN-OL10?
- Side-by-Side Specs
- FAQ
Is this a standalone UPS or a dependent run-time expansion unit?
The UPX-RLNK-1000R-8 is a complete, standalone 1000VA UPS with RLNK outlet-level switching and control built in, providing power protection, management, and load switching from a single unit. Its DC bus operates at 36 VDC.
The UPX-EXPANRUN-OL10 is explicitly a run-time expansion unit — its product name and VA Rating spec (1000VA) indicate it adds battery capacity to a host NEXSYS UPS rather than functioning independently. Its topology is listed as Online, and its DC bus operates at 24 VDC. The AC output spec (110–127 VAC, 15A) and the VA Rating are present only on the EXPANRUN-OL10 spec sheet; the RLNK-1000R-8 does not publish an AC output voltage or amperage rating in the provided specs. Buyers must confirm the EXPANRUN-OL10 requires a compatible host base unit — it cannot protect loads on its own.
How do the physical dimensions, weight, and electrical interface specs compare?
Both units occupy 2RU in a standard 19-inch rack and share a 16-inch depth (40.6 cm) and 19-inch width (48.3 cm). Both use a NEMA 5-15P input plug and NEMA 5-15R receptacles, with a 6 ft (1.8 m) input cord. Both require 120 VAC input.
The RLNK-1000R-8 weighs 44.1 lbs (20 kg) with a shipping weight of 52 lbs (23.6 kg). The EXPANRUN-OL10 is slightly lighter at 41.4 lbs (18.8 kg); no shipping weight is specified for the EXPANRUN-OL10. The EXPANRUN-OL10 adds mounting depth specifications not present on the RLNK-1000R-8: minimum 18 inches and maximum 32 inches (81.3 cm), useful for cabinet planning when adding the expansion unit alongside a host UPS.
The DC bus voltages differ: 36 VDC for the RLNK-1000R-8 versus 24 VDC for the EXPANRUN-OL10. This difference is likely relevant to inter-unit compatibility and should be verified against Middle Atlantic's NEXSYS pairing documentation before specifying either unit.
What certifications, compliance markings, and warranty terms apply to each unit?
Both units share TAA Non-Compliant status (TAA Compliant: No), country of origin China, and carry the NEXSYS UPS designation under Special Features. Neither unit lists a UL listing or ETL certification in the provided specs.
The EXPANRUN-OL10 provides additional regulatory detail not present on the RLNK-1000R-8 spec sheet: FCC (listed under CSA field), RoHS (listed under REACH field), and a Patents notation (listed under TUV field). The field labeling in the source data is atypical and should be confirmed against the official datasheet at /content/product-datasheets/UPX-EXPANRUN-OL10.pdf.
The EXPANRUN-OL10 lists a battery warranty of 3 years (in the '2 Years Battery' field, which reads '3 years' — the field label appears to be a spec-sheet artifact). No battery warranty term is specified for the RLNK-1000R-8 in the provided data.
Which should you choose: the RLNK-1000R-8 or the UPX-EXPANRUN-OL10?
Our take: The UPX-RLNK-1000R-8 is the appropriate choice when a complete, self-contained 1000VA UPS with intelligent RLNK outlet-level control is required; the UPX-EXPANRUN-OL10 is not a substitute — it is a run-time expansion accessory that requires a compatible NEXSYS host UPS to function. Key spec deltas: the RLNK-1000R-8 operates on a 36 VDC bus versus the EXPANRUN-OL10's 24 VDC bus, a difference that governs inter-unit pairing compatibility; the RLNK-1000R-8 weighs 2.7 lbs more (44.1 vs 41.4 lbs); and only the EXPANRUN-OL10 publishes an AC output rating (110–127 VAC, 15A) and mounting depth range (18–32 in). For deployments needing extended runtime beyond what the base NEXSYS UPS battery provides, the EXPANRUN-OL10 adds that capacity — but only alongside, not instead of, a host unit. Confirm NEXSYS DC bus compatibility (36 V vs 24 V) with Middle Atlantic before pairing.
Side-by-Side Comparison
Spec-for-spec, from manufacturer data.
| Specification | Middle Atlantic RLNK-1000R-8 | Middle Atlantic UPX-EXPANRUN-OL10 |
|---|---|---|
| Product Role | Standalone UPS with outlet control | Run-time expansion unit (host UPS required) |
| VA Rating | — | 1000VA |
| Topology | — | Online |
| Mount Type | Rack | Rack |
| Rack Units | 2RU | 2RU |
| Input Voltage | 120 VAC | 120 VAC |
| AC Output Voltage | — | 110–127 VAC |
| Output Current | — | 15A |
| DC Bus Voltage | 36 VDC | 24 VDC |
| Width | 19 in (48.3 cm) | 19 in (48.3 cm) |
| Height | 3.46 in (8.8 cm) | 3.5 in (8.9 cm) |
| Depth | 16 in (40.6 cm) | 16 in (40.6 cm) |
| Mounting Depth Range | — | 18–32 in (45.7–81.3 cm) |
| Weight | 44.1 lbs (20 kg) | 41.4 lbs (18.8 kg) |
| Shipping Weight | 52 lbs (23.6 kg) | — |
| Plug / Receptacle | NEMA 5-15P / NEMA 5-15R | NEMA 5-15P / NEMA 5-15R |
| Cord Length | 6 ft (1.8 m) | 6 ft (1.8 m) |
| Operating Temp | 32°–104°F (0°–40°C) | 32°–104°F (0°–40°C) |
| Special Features | NEXSYS UPS, RLNK outlet control | NEXSYS UPS |
| Battery Warranty | — | 3 years (per spec field) |
| TAA Compliant | No | No |
| Country of Origin | China | China |
| RoHS / FCC | — | Yes (per spec data) |
| UPC | 656747395635 | 656747397769 |
Frequently Asked Questions
Which should you choose: the RLNK-1000R-8 or the UPX-EXPANRUN-OL10?
The UPX-RLNK-1000R-8 is the appropriate choice when a complete, self-contained 1000VA UPS with intelligent RLNK outlet-level control is required; the UPX-EXPANRUN-OL10 is not a substitute — it is a run-time expansion accessory that requires a compatible NEXSYS host UPS to function. Key spec deltas: the RLNK-1000R-8 operates on a 36 VDC bus versus the EXPANRUN-OL10's 24 VDC bus, a difference that governs inter-unit pairing compatibility; the RLNK-1000R-8 weighs 2.7 lbs more (44.1 vs 41.4 lbs); and only the EXPANRUN-OL10 publishes an AC output rating (110–127 VAC, 15A) and mounting depth range (18–32 in). For deployments needing extended runtime beyond what the base NEXSYS UPS battery provides, the EXPANRUN-OL10 adds that capacity — but only alongside, not instead of, a host unit. Confirm NEXSYS DC bus compatibility (36 V vs 24 V) with Middle Atlantic before pairing.
Can the UPX-EXPANRUN-OL10 replace the UPX-RLNK-1000R-8 as a standalone UPS?
No. Based on the provided specs, the UPX-EXPANRUN-OL10 is a run-time expansion unit — it is designed to extend battery backup duration when connected to a compatible NEXSYS host UPS, not to operate independently. The RLNK-1000R-8 is the self-contained UPS with outlet control. Using the EXPANRUN-OL10 without a host unit would leave loads unprotected.
Is the UPX-EXPANRUN-OL10 compatible with the UPX-RLNK-1000R-8 as its host UPS?
The provided specs do not confirm or deny this pairing. A potential incompatibility flag exists: the RLNK-1000R-8 specifies a 36 VDC output bus, while the EXPANRUN-OL10 specifies a 24 VDC bus. These differing DC voltages may indicate they are designed for different NEXSYS host units. Verify compatibility against Middle Atlantic's official NEXSYS pairing documentation before specifying this combination.
Which unit is better for a high-density rack where weight and depth matter?
Both units share the same 2RU, 19-inch-wide, 16-inch-deep form factor and NEMA 5-15P/R electrical interface. The EXPANRUN-OL10 is 2.7 lbs lighter (41.4 vs 44.1 lbs) and provides explicit mounting depth guidance (18–32 in range), which can aid cabinet planning. However, the EXPANRUN-OL10 adds rack depth since it must co-reside with a host UPS, effectively doubling the rack-unit and weight footprint compared to using the RLNK-1000R-8 alone.
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