CyberPower OL1000RTXL2U vs APC by Schneider Electric SMT1000CUS: Specification Comparison
Both the CyberPower OL1000RTXL2U and the APC Smart-UPS SMT1000CUS are 1000 VA / single-phase UPS units targeting the same general load range for IT and physical-security infrastructure. They diverge on topology — double-conversion online versus line-interactive — and on form factor. Buyers selecting between them are typically weighing superior power conditioning and runtime flexibility against a proven tower-only platform, and must decide which trade-offs fit their rack space, budget, and power-quality environment.
In This Guide
- Which topology delivers cleaner power and better protects sensitive loads?
- How do usable wattage, runtime, and battery serviceability compare?
- Which unit fits better into a rack environment, and what remote-management options are available?
- Which should you choose: the OL1000RTXL2U or the SMT1000CUS?
- Side-by-Side Specs
- FAQ
Which topology delivers cleaner power and better protects sensitive loads?
The OL1000RTXL2U uses double-conversion online topology: the load runs continuously from the inverter, so there is zero transfer time during a utility event and the output is fully isolated from input disturbances. Output waveform is a true pure sine wave at ±2% voltage regulation across a configurable 100–125 VAC range.
The SMT1000CUS uses line-interactive topology, which keeps the load on utility power during normal operation and switches to battery on an outage. APC specifies the waveform as 'sine wave' but does not publish a THD or voltage-regulation tolerance figure in the provided specs. Transfer time is not listed.
For loads that are sensitive to voltage fluctuations, frequency anomalies, or brief utility sags — such as NVRs, managed switches, or servers — the double-conversion architecture of the OL1000RTXL2U offers a measurably higher level of conditioning. The SMT1000CUS is adequate for typical office or light IT loads that tolerate brief transfer windows.
How do usable wattage, runtime, and battery serviceability compare?
The OL1000RTXL2U is rated at 900 W (90% power factor). At full 900 W load the spec sheet shows 8 minutes of runtime; at half load (450 W) runtime extends to 21 minutes. The battery pack is three 12 V / 9 Ah sealed lead-acid cells and is explicitly rated hot-swappable — meaning it can be replaced under load without a maintenance window. Recharge to 90% takes 4 hours.
The SMT1000CUS is rated at 700 W (70% power factor). APC's provided specs reference a runtime graph rather than publishing discrete runtime figures, so a direct minute-for-minute comparison cannot be made from the data supplied. The battery is a lead-acid type (replacement part RBC6); hot-swap capability is not stated in the provided specs. Battery charging power is listed as 99 W rated.
The 200 W difference in real-power capacity is significant: at identical VA ratings, the CyberPower delivers 28.6% more usable watts. Installers should factor this in when the protected load approaches 700 W — the APC would be at or beyond its rated watt ceiling while the CyberPower still has headroom.
Which unit fits better into a rack environment, and what remote-management options are available?
The OL1000RTXL2U ships in a 2U rack/tower convertible enclosure measuring 17 × 3.5 × 16.9 in (432 × 89 × 429 mm) and weighing 39.6 lb. It includes an LCD control panel, USB, serial, and network ports. Generator compatibility is explicitly confirmed in the spec sheet.
The SMT1000CUS is a tower-only unit (0U rack units per spec). Its dimensions are given only as 8.6 in (219 mm) on one axis — width, height, and depth are not fully specified in the provided data. It weighs 44.3 lb. Connectivity includes a serial port, USB port, SmartConnect port, and one available expansion slot. No LCD or generator-compatibility statement is present in the provided specs.
For deployments in a server room or equipment rack, the OL1000RTXL2U has a direct advantage: it occupies a defined 2U rack slot. The SMT1000CUS must be floor- or shelf-mounted, consuming physical space outside the rack. The APC SmartConnect port provides cloud-based monitoring via APC's ecosystem; the CyberPower network port supports SNMP/web card options, though specific card SKUs are not listed in the provided data.
Which should you choose: the OL1000RTXL2U or the SMT1000CUS?
Our take: The OL1000RTXL2U is the stronger choice when double-conversion power quality, higher real-power capacity, and rack-mount form factor are required. Three concrete spec deltas drive that conclusion: first, its double-conversion online topology delivers zero-transfer-time output versus the SMT1000CUS's line-interactive design; second, it provides 900 W of usable capacity versus 700 W on the APC — a 200 W or 28.6% difference at identical VA ratings; third, it occupies a defined 2U rack slot while the SMT1000CUS is tower-only. Additionally, hot-swap battery replacement is confirmed for the CyberPower but not stated for the APC in the provided specs. The SMT1000CUS is appropriate where rack space is unavailable, the protected load stays well under 700 W, and APC's SmartConnect cloud-management ecosystem is already deployed. Buyers standardized on APC infrastructure management tools should validate whether the CyberPower's network management card meets their monitoring requirements before switching.
Side-by-Side Comparison
Spec-for-spec, from manufacturer data.
| Specification | CyberPower OL1000RTXL2U | APC by Schneider Electric SMT1000CUS |
|---|---|---|
| UPS Topology | Double-Conversion Online | Line-Interactive |
| Capacity (VA) | 1000 VA | 1000 VA |
| Capacity (Watts) | 900 W | 700 W |
| Output Waveform | Pure Sine Wave | Sine Wave |
| Output Voltage | 100/110/115/120/125 VAC ±2% (configurable) | 120 V AC (110 V / 125 V) |
| Input Voltage Range | 96–150 VAC (full load), nominal 100–125 VAC | 75–154 V (adjustable) |
| Input Connection | NEMA 5-15P, 10 ft cord | NEMA 5-15P |
| Output Outlets | 8 × NEMA 5-15R (all battery-backed) | 8 × NEMA 5-15R |
| Form Factor | Rack/Tower 2U | Tower only (0U) |
| Dimensions | 17 × 3.5 × 16.9 in (432 × 89 × 429 mm) | 8.6 in (219 mm) — full dims not provided |
| Weight | 39.6 lb (17.96 kg) | 44.3 lb (20.1 kg) |
| Battery Type | Sealed Lead-Acid, 3 × 12 V / 9 Ah | Lead-Acid (RBC6) |
| Hot-Swappable Battery | Yes | — |
| Runtime at Full Load | 8 min (900 W) | Not specified in provided specs |
| Runtime at Half Load | 21 min (450 W) | Not specified in provided specs |
| Connectivity | USB, Serial, Network | Serial, USB, SmartConnect port, expansion slot |
| Display | LCD control panel | Not stated in provided specs |
| Efficiency | Up to 94% (ECO mode) | Not specified in provided specs |
| Generator Compatible | Yes | Not stated in provided specs |
| Certifications | UL1778, FCC Part 15 Class B, CSA C22.2 No. 107.3, RoHS | cULus, ENERGY STAR V2.0, TAA compliant |
Frequently Asked Questions
Which should you choose: the OL1000RTXL2U or the SMT1000CUS?
The OL1000RTXL2U is the stronger choice when double-conversion power quality, higher real-power capacity, and rack-mount form factor are required. Three concrete spec deltas drive that conclusion: first, its double-conversion online topology delivers zero-transfer-time output versus the SMT1000CUS's line-interactive design; second, it provides 900 W of usable capacity versus 700 W on the APC — a 200 W or 28.6% difference at identical VA ratings; third, it occupies a defined 2U rack slot while the SMT1000CUS is tower-only. Additionally, hot-swap battery replacement is confirmed for the CyberPower but not stated for the APC in the provided specs. The SMT1000CUS is appropriate where rack space is unavailable, the protected load stays well under 700 W, and APC's SmartConnect cloud-management ecosystem is already deployed. Buyers standardized on APC infrastructure management tools should validate whether the CyberPower's network management card meets their monitoring requirements before switching.
Can the OL1000RTXL2U or SMT1000CUS handle a load close to 900 W?
Only the OL1000RTXL2U is rated for loads up to 900 W. The SMT1000CUS has a maximum rated output of 700 W despite sharing the same 1000 VA nameplate. Connecting a load approaching 900 W to the SMT1000CUS would exceed its stated watt rating; the OL1000RTXL2U has 200 W of additional headroom in that scenario.
Can I replace the battery without taking my equipment offline?
The OL1000RTXL2U spec sheet explicitly states hot-swappable batteries (three 12 V / 9 Ah sealed lead-acid cells), meaning replacement is possible under load. The SMT1000CUS uses a standard lead-acid pack (RBC6), but the provided specifications do not state whether hot-swap replacement is supported.
Which unit fits in a standard equipment rack?
The OL1000RTXL2U is a rack/tower convertible unit occupying 2U (17 × 3.5 × 16.9 in). The SMT1000CUS is listed as a tower-only unit (0U rack units per its spec sheet) and would require a shelf or floor placement adjacent to the rack rather than mounting within it.
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