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NXT Power

NXT Power Integrity PRO Desktop UPS 400VA — Isolated Line-Interactive Power Conditioner (NPTU400-GL-N)

NXT Power Integrity PRO Desktop UPS 400VA — Isolated Line-Interactive Power Conditioner (NPTU400-GL-N)

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NXT Power Integrity PRO Desktop UPS Overview

The NXT Power Integrity PRO Desktop UPS (NPTU400-GL-N) delivers 400 VA / 320 W of isolated, line-interactive backup power. Multi-monitor workstations, small network switches, and busier point-of-sale counters draw more current than a compact backup can carry cleanly. A low-impedance isolation transformer, surge diverter, and noise filter inside the chassis condition incoming power before disturbances reach the load.

Galvanic isolation paired with true sine wave output protects equipment that strip-style battery backups pass disturbances straight through to. NXT GROUND circuitry removes ground loops that otherwise trigger lockups on shared benches and networked counters. A 24 VDC rail also powers compatible printers directly, so the setup skips a separate wall adapter.

UL1778 listing and a three-year NXT Power warranty back every Integrity PRO Desktop unit, covering components and internal batteries. USB communication supports monitored, orderly shutdown on connected Windows hosts.

Specifications

Product Type Line-interactive uninterruptible power supply (UPS)
Model NPTU400-GL-N
Topology Line interactive, true sine wave, isolated (AC and DC output)
Output Capacity 400 VA / 320 W
Input Voltage 120 VAC (range 96–144 VAC), 60 Hz
Input Connection NEMA 5-15P, fixed 6 ft line cord
Input Rated Current 5.0 A
Output Receptacles (5) NEMA 5-15R plus (1) terminal block for DC output
DC Output 24.0 VDC @ 3.0 A maximum
Output Waveform True sine wave
Voltage Regulation ±10% of nominal (on mains input)
Efficiency ≥90% AC-AC; ≥82% DC-AC
Transfer Time 6–9 ms typical
Battery 12 V high-rate valve-regulated sealed lead-acid (VRLA); Qty 1
Backup Time Approximately 5 minutes at rated load
Recharge Time <8 hours to 90%
Communication USB
Operating Temperature 0 to 40 °C
Humidity 5% to 90%, non-condensing
Audible Noise ≤40 dBA at 1 m from front
Dimensions (H × W × D) 10.5 × 5.8 × 12.6 in (267 × 147 × 318 mm)
Weight Unit 31 lb (14 kg); Shipping 37 lb (17 kg)
Heat Dissipation 140 BTU/hr
Safety / EMC UL1778, cUL to CSA 22.2 No. 107.3, FCC Part 15 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
NPTU400-GL-N Integrity PRO Desktop UPS, 120 VAC 60 Hz 400 VA / 320 W

Need a smaller footprint? The NPTU250-GL-N covers 250 VA / 200 W in the same isolated desktop chassis.

How to Choose the Right Isolated Desktop UPS

Matching a desktop UPS to a bench comes down to load type, not just outage runtime. Weigh these axes before you spec a unit:

  • Capacity headroom — size the UPS above your combined load; the NPTU400-GL-N supports up to 320 W continuous.
  • Isolation vs. standard backup — an isolation transformer blocks common-mode noise and ground loops that plain battery strips pass straight through.
  • Waveform — true sine wave output suits PFC power supplies and instruments that reject stepped or simulated output.
  • DC printer support — the 24 VDC rail drives compatible printers without a separate adapter.
  • Site power — confirm a 120 VAC 60 Hz circuit and a NEMA 5-15 receptacle at the point of use.

Laboratory Applications

Desktop UPS units protect low-draw electronics common on lab benches and service counters. Data loggers, network switches, single-board controllers, and benchtop meters all stay within the 320 W rating comfortably. Ground-loop elimination keeps networked instruments from locking up mid-run on shared circuits.

Retail and back-office settings benefit too, including multi-register POS clusters, ticket printers, and card readers pulling combined load. Conditioned power cuts nuisance faults on shared circuits, while battery runtime carries connected gear through short outages for a clean shutdown.

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.
  • NPTU250-GL-N — the 250 VA / 200 W sibling in the same isolated desktop chassis.

Point-of-use protection for the benchtop instruments this UPS is sized for:

Product Documentation

Ordering

Each NPTU400-GL-N ships as a single conditioned UPS with a fixed 6 ft line cord and internal battery 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 site.

Frequently Asked Questions

Does the NPTU400-GL-N run on a standard 120 V wall outlet?
Yes. It uses a NEMA 5-15P plug and accepts 120 VAC input across a 96–144 VAC range at 60 Hz.

What is the output waveform?
True sine wave, suitable for PFC power supplies and instruments that reject stepped or simulated waveforms.

How is this different from a standard battery backup?
It adds a low-impedance isolation transformer and NXT GROUND conditioning, blocking common-mode noise and ground loops that ordinary battery strips pass through to the load.

What does the 24 VDC output power?
The 24 VDC rail supplies up to 3.0 A and drives compatible printers directly, eliminating a separate external adapter.

How long is the warranty?
Three years, covering components and the internal battery from the date of shipment.

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