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NXT Power Integrity Max R/T UPS Overview
The NXT Power Integrity Max R/T UPS (NPTU1500-OR-N) tops the rack-tower line at 1440 VA / 1290 W of isolated, online double-conversion power. Continuous double-conversion regenerates output at all times, so connected rack gear sees no transfer gap during a mains event. An internal isolation transformer keeps common-mode noise off the rack bus.
Six NEMA 5-15R outlets, a factory-default 120 VAC input, and an optional 100 VAC configuration match the rest of the R/T line. RS-232 and USB cover local monitoring, and an internal SNMP slot is available for network alerts. Rack ears and tower feet ship in the box.
UL1778 listing and a three-year NXT Power warranty cover components and internal batteries. Three internal VRLA batteries supply the 36 VDC bus, sized for a short, clean ride-through at this higher capacity tier.
Specifications
| Product Type | Online double-conversion uninterruptible power supply (UPS) |
| Model | NPTU1500-OR-N |
| Topology | Double-conversion, true sine wave output, internal isolation transformer |
| Output Capacity | 1440 VA / 1290 W (1200/1080 W @100VAC) |
| Input Voltage | 120 VAC factory default (100 VAC selectable), 90–150 VAC range above 75% load, 50/60 Hz auto-detect |
| Input Connection | NEMA 5-15P, fixed 6 ft line cord |
| Input Rated Current | 12.0 A |
| Output Receptacles | (6) NEMA 5-15R |
| Output Waveform | True sine wave |
| Voltage Regulation | ±2.0% of nominal (mains or battery) |
| Efficiency | AC-DC-AC ≥84.0%; DC-AC ≥82.0% |
| Battery | 12 V high-rate VRLA, flame retardant; Qty 3 (36 VDC nominal) |
| Backup Time | Approximately 3 minutes at rated load |
| Recharge Time | <8 hours to 90% |
| Communication | RS-232, USB, DB-9 dry contacts; internal SNMP adapter optional |
| Operating Temperature | 0 to 40 °C (storage −15 to 55 °C, transit −15 to 60 °C) |
| Humidity | 5% to 95%, non-condensing |
| Audible Noise | ≤50 dBA at 1 m from front |
| Heat Dissipation | 838 BTU/hr |
| Dimensions (H × W × D) | 3.46 × 17.32 × 27.68 in (88 × 440 × 703 mm), 2U rack-tower |
| Weight | Unit 63 lb (29 kg); Shipping 72 lb (33 kg) |
| Safety / EMC | UL1778, cUL to CSA 22.2 No. 107.3, FCC Part 15J Class A, RoHS |
| Surge Withstand | ANSI/IEEE C62.41 Cat. A & B (6000 V) |
| Warranty | 3-year, components and internal batteries |
Available Sizes and Configurations
| SKU | Description | Capacity |
| NPTU1500-OR-N | Integrity Max R/T UPS, 2U rack-tower, 120 VAC | 1440 VA / 1290 W |
Need a smaller footprint? The NPTU800-OR-N and NPTU1100-OR-N cover 720 W and 990 W in the same 2U rack-tower chassis.
How to Choose the Right Isolated Rack Tower UPS
Sizing a rack-tower UPS comes down to rack load and how it's isolated, not just runtime. Weigh these axes before you spec a unit:
- Capacity headroom — size above the combined rack load; the NPTU1500-OR-N supports up to 1290 W continuous.
- Isolation vs. standard backup — continuous double-conversion output stays isolated and regenerated at all times, unlike a standard backup that only engages after a transfer.
- Waveform — true sine wave output suits networking and instrument power supplies that reject stepped waveforms.
- Shutdown & communication — RS-232, USB, and an optional SNMP slot support monitored shutdown across a fully loaded rack.
- Site power — confirm a 120 VAC circuit and 2U of rack space; power connects via a fixed NEMA 5-15P cord.
Laboratory Applications
The heaviest rack-mounted loads in the R/T line fit the NPTU1500-OR-N. Dense switch stacks, multi-node servers, and instrument controllers sharing a fully loaded rack stay within its 1290 W rating. A crowded rack is exactly where isolation earns its keep against accumulated ground-loop noise.
Multi-instrument diagnostic and imaging racks with the heaviest combined draw in this class suit the same profile. Continuous double conversion protects equipment that can't tolerate even a brief switchover, a common weak point in simpler line-interactive designs.
Related Products and Accessories
Explore the full NXT Power line for other capacities and configurations:
- NXT Power Integrity Series UPS — desktop, standard, rack-tower, and Max models.
- NPTU800-OR-N and NPTU1100-OR-N — 720 W and 990 W options in the same 2U rack-tower chassis family.
Rack-mounted data and monitoring systems this UPS protects:
- Multi-Channel Data Loggers — uninterrupted logging through outages.
- Swift Sensors Wireless Monitoring — keep monitoring gateways online during a power event.
- Laboratory Incubators — hold culture conditions steady through power disturbances.
Product Documentation
Ordering
Each NPTU1500-OR-N ships as a complete rack-tower UPS with rack ears, tower feet, and internal batteries installed. LabSupplies.com is an authorized NXT Power dealer, ships from US inventory, and provides direct manufacturer service and support. Contact us to confirm the right configuration for your rack.
Frequently Asked Questions
What's the actual output rating?
1440 VA / 1290 W continuous — NXT Power markets the model as 1500VA, but the datasheet rates it at 1440 VA / 1290 W.
What load can it support?
Up to 1290 W continuous, powered from three internal 12 V VRLA batteries.
Does it mount in a standard rack?
Yes, it ships 2U with rack ears and tower feet included.
Does it support remote monitoring?
RS-232 and USB ports are standard, with an internal SNMP adapter available as an option.
How long is the warranty?
Three years, covering components and the internal batteries from the date of shipment.