APC by Schneider Electric SMC1500C vs Vertiv PSA6-1500LVT: Specification Comparison
Both the APC SMC1500C and the Vertiv PSA6-1500LVT are 1440 VA line-interactive UPS units designed for 120 V environments, targeting desktop/tower workstation, small server, and network-closet loads. This comparison examines runtime and power delivery, physical form factor and battery serviceability, and protection features and efficiency — the three axes that most frequently drive purchase decisions in this class.
In This Guide
- Which unit delivers more usable power and how do their output specs compare?
- How do the two units differ in physical footprint, battery access, and serviceability?
- Which unit offers stronger surge protection, better efficiency, and more comprehensive warranty coverage?
- Which should you choose: the SMC1500C or the PSA6-1500LVT?
- Side-by-Side Specs
- FAQ
Which unit delivers more usable power and how do their output specs compare?
The APC SMC1500C is rated at 900 W / 1440 VA output with a true sine-wave waveform, which is relevant for active PFC power supplies common in modern servers and workstations. Its output voltage window spans 110–127 V at 50/60 Hz, and it lists an output voltage THD of 5%, a concrete quality metric for sensitive loads.
The Vertiv PSA6-1500LVT is rated at 935 W / 1440 VA — a 35 W higher watt rating than the SMC1500C at the same VA. Vertiv specifies input and output at 120 VAC. Waveform type is not stated in the provided specs for the PSA6-1500LVT, so buyers powering active-PFC equipment should confirm this directly with Vertiv before purchasing.
Both units share the same 1440 VA capacity, but the PSA6-1500LVT's 935 W real-power rating edges out the SMC1500C's 900 W by 35 W. The SMC1500C's explicit sine-wave and THD specifications give it a verifiable edge for load quality transparency.
How do the two units differ in physical footprint, battery access, and serviceability?
The Vertiv PSA6-1500LVT provides explicit physical dimensions — 11.42 in H × 4.72 in W × 16.93 in D — and a weight of 26.5 lbs, enabling precise rack-room or desktop planning. It is listed as a Desktop form factor. Critically, Vertiv specifies the battery as user-replaceable, which reduces service downtime and can lower total cost of ownership over the unit's life.
The APC SMC1500C is listed as a Tower form factor. Physical dimensions and weight are not provided in the supplied specifications. Battery replaceability is not stated in the provided specs for the SMC1500C.
For buyers who prioritize knowing physical fit in advance or who expect to replace batteries in-house without a service call, the PSA6-1500LVT's published dimensions and explicit user-replaceable battery specification offer a measurable planning and serviceability advantage. The SMC1500C's tower designation versus the PSA6-1500LVT's desktop form factor may also matter in constrained spaces.
Which unit offers stronger surge protection, better efficiency, and more comprehensive warranty coverage?
The APC SMC1500C documents its surge energy rating at 680 J, a directly auditable protection figure for connected equipment. It also specifies EMI/RFI noise filtering, a minimum hold time of 6 ms and maximum of 10 ms, audible alarms, and a noise level of 45 dB. Efficiency is not stated in the provided specs.
The Vertiv PSA6-1500LVT specifies greater than 95% efficiency at full load, a meaningful operational cost figure — particularly in always-on deployments where energy draw compounds over time. Surge energy rating in joules is not provided in the PSA6-1500LVT's specs. The PSA6-1500LVT carries a 3-year full-unit warranty that explicitly includes the battery, a coverage term and scope not specified in the APC SMC1500C's provided data.
The SMC1500C's 680 J surge rating and documented hold times provide concrete protection metrics. The PSA6-1500LVT counters with a stated >95% efficiency figure and a 3-year battery-inclusive warranty — both of which are absent or unspecified for the SMC1500C in the data provided.
Which should you choose: the SMC1500C or the PSA6-1500LVT?
Our take: The SMC1500C is the stronger choice when load quality and documented surge protection are the primary concern — its sine-wave output, 5% THD ceiling, 680 J surge rating, and 6–10 ms hold-time range are all explicitly specified and verifiable. The PSA6-1500LVT counters on three practical dimensions: its 935 W real-power rating exceeds the SMC1500C's 900 W by 35 W; its >95% full-load efficiency specification reduces operating costs in always-on deployments where no equivalent figure is available for the SMC1500C; and its 3-year battery-inclusive warranty outpaces the SMC1500C's unspecified warranty coverage. Choose the SMC1500C for sensitive active-PFC loads where waveform quality and protection specs must be auditable. Choose the PSA6-1500LVT for cost-of-ownership-sensitive deployments where user-replaceable batteries, published dimensions, and a longer explicit warranty drive the decision.
Side-by-Side Comparison
Spec-for-spec, from manufacturer data.
| Specification | APC by Schneider Electric SMC1500C | Vertiv PSA6-1500LVT |
|---|---|---|
| UPS Topology | Line-Interactive | Line-Interactive |
| VA Capacity | 1440 VA | 1440 VA |
| Real Power (W) | 900 W | 935 W |
| Output Waveform | Sine | — |
| Output Voltage THD | 5% | — |
| Input Voltage Range | 85–136 V | 120 VAC |
| Output Voltage Range | 110–127 V | 120 VAC |
| Input/Output Frequency | 50/60 Hz | — |
| Surge Energy Rating | 680 J | — |
| Hold Time (min/max) | 6 ms / 10 ms | — |
| Efficiency at Full Load | — | >95% |
| EMI/RFI Filtering | Yes | — |
| Audible Alarms | Yes | — |
| Noise Level | 45 dB | — |
| Form Factor | Tower | Desktop |
| Dimensions (H x W x D) | — | 11.42 x 4.72 x 16.93 in |
| Weight | — | 26.5 lbs |
| Battery Replaceability | — | User-replaceable |
| Warranty | — | 3 years (incl. battery) |
Frequently Asked Questions
Which should you choose: the SMC1500C or the PSA6-1500LVT?
The SMC1500C is the stronger choice when load quality and documented surge protection are the primary concern — its sine-wave output, 5% THD ceiling, 680 J surge rating, and 6–10 ms hold-time range are all explicitly specified and verifiable. The PSA6-1500LVT counters on three practical dimensions: its 935 W real-power rating exceeds the SMC1500C's 900 W by 35 W; its >95% full-load efficiency specification reduces operating costs in always-on deployments where no equivalent figure is available for the SMC1500C; and its 3-year battery-inclusive warranty outpaces the SMC1500C's unspecified warranty coverage. Choose the SMC1500C for sensitive active-PFC loads where waveform quality and protection specs must be auditable. Choose the PSA6-1500LVT for cost-of-ownership-sensitive deployments where user-replaceable batteries, published dimensions, and a longer explicit warranty drive the decision.
Does the Vertiv PSA6-1500LVT produce a pure sine wave like the APC SMC1500C?
The APC SMC1500C explicitly specifies a sine waveform output. The Vertiv PSA6-1500LVT's provided specifications do not state the output waveform type. Buyers powering equipment with active PFC power supplies — common in modern servers and workstations — should confirm the PSA6-1500LVT's waveform directly with Vertiv before purchasing, as active-PFC loads can behave poorly on simulated or stepped sine waveforms.
Which UPS has the better warranty, and does it cover the battery?
Based on the provided specifications, the Vertiv PSA6-1500LVT carries an explicitly stated 3-year full-unit warranty that includes the battery. The APC SMC1500C's warranty terms are not stated in the provided specifications. Buyers for whom warranty scope and battery coverage are decision factors should request APC's current warranty documentation before comparing the two units on this dimension.
Can I replace the battery myself on either unit without a service call?
The Vertiv PSA6-1500LVT explicitly specifies a user-replaceable battery, meaning end-users can swap the battery without returning the unit for service. The APC SMC1500C's provided specifications do not state whether the battery is user-replaceable. Confirm battery replacement policy with APC or your distributor before purchasing the SMC1500C if in-house serviceability is a requirement.
More UPS Comparisons
- APC by Schneider Electric SMC1500-2UC vs Vertiv PSA6-1500LVT
- APC by Schneider Electric SMC1500-2UC vs Vertiv PSA6E-1500LVT
- APC by Schneider Electric SMC1500-2UC vs APC by Schneider Electric SMC1500C
- APC by Schneider Electric SMC1500-2UC vs APC by Schneider Electric SMT1500X93
- APC by Schneider Electric SMC1500C vs Vertiv PSA6E-1500LVT
- APC by Schneider Electric SMC1500C vs APC by Schneider Electric SMT1500X93
UPS Buying Guides
Get a Second Opinion on Your Camera Choice
Share your site layout, coverage goals, and budget. Our team will validate the camera selection, flag anything we would change, and recommend products that match the use case.