APC by Schneider Electric SURT1000XLIM 1000VA 700W Marine Rack-Mount UPS
Overview
The APC by Schneider Electric SURT1000XLIM is a 1000VA / 700W rack-mount uninterruptible power supply purpose-built for marine and industrial environments where grid power is unstable, dirty, or intermittent. Rated for 230V input and delivering 230V or 240V AC output as a true sine wave, it protects sensitive electronics — security systems, edge computing nodes, network equipment, surveillance recorders — from the power irregularities common aboard vessels and in harsh commercial installations. At 2U rack height and 19.02 inches deep, it slots into standard 19-inch rack enclosures without special adapters, and at 50.71 lb it's dense but manageable for a two-person install. If you're protecting a shipboard NVR stack, a remote surveillance node, or critical communications gear far from a reliable utility feed, this is a unit worth examining closely.
Key Features
- True Sine Wave Output: Unlike modified sine wave UPS units that can cause hum, overheating, or outright rejection in active PFC power supplies, the SURT1000XLIM delivers a clean sine wave under battery — meaning your NVRs, managed switches, and network appliances see power they can't distinguish from utility grid. This matters especially for equipment with active PFC front ends, which are now standard in server-class hardware.
- 1000VA / 700W Capacity: With a 0.70 power factor, the SURT1000XLIM handles real-world mixed loads accurately. Size your protected load to 700W or below; exceeding this causes the UPS to shed or alarm. For a typical 4–8 camera NVR system with a PoE switch drawing 200–350W, this headroom is comfortable.
- 14-Minute Full-Load / 32-Minute Half-Load Runtime: At full 700W draw you get roughly 14 minutes — enough time to execute a controlled shutdown or switch to a generator. At half load (350W), runtime extends to 32 minutes, which covers most generator transfer sequences on commercial vessels or remote sites. Plan your load accordingly; runtime degrades as load increases.
- 420 Joule Surge Energy Rating: Surge energy absorption rated at 420J via the DB-9 RS-232 interface port provides connected equipment with a documented protection threshold — relevant when specifying to an insurance or compliance auditor who needs verifiable surge ratings on record.
- 3-Hour Battery Recharge Time: The single lead-acid battery pack recharges in approximately 3 hours from full discharge — reasonable for a watch-cycle on a vessel or a night-shift recovery scenario. Factor this into maintenance windows if your site loses power frequently.
- DB-9 RS-232 Interface Port: The included RS-232 management port lets you wire the SURT1000XLIM to a host system running APC PowerChute or compatible UPS management software, enabling scheduled shutdowns, runtime monitoring, and event logging without manual intervention. In a lights-out rack environment this is the difference between a managed shutdown and a hard crash.
- Single Expansion Slot: One open expansion bay accepts optional APC SmartSlot cards — network management cards (SNMP/web), environmental monitoring modules, or relay I/O cards — giving you a path to remote monitoring over IP without replacing the unit. Identify the card you need before ordering; the slot count is fixed at one.
- 2U Rack-Mountable Form Factor: At 3.35 inches wide (panel) and 19.02 inches deep, the SURT1000XLIM fits standard 19-inch racks and occupies 2U of vertical space. It also supports tower orientation for non-rack deployments. The 50.71 lb weight means you want it low in the rack — bottom 3U is the standard recommendation for stability.
Integration & Compatibility
The SURT1000XLIM integrates with APC's SmartSlot ecosystem through its single expansion bay, allowing optional network management cards to add SNMP, Modbus, or web-based remote monitoring. The RS-232 interface supports APC PowerChute Business Edition and Network Shutdown software on Windows and Linux platforms, enabling automated graceful shutdown of connected servers or NVRs when battery runtime falls below a configurable threshold. The 230V/240V output covers European and international equipment standards, and the marine designation indicates the unit is designed for the electrical environment typical aboard commercial vessels — where shore power quality varies and voltage fluctuations are routine. Verify your specific rack depth before ordering; at 19.02 inches this unit requires adequate rear clearance for cable management and airflow.
Frequently Asked Questions
Q: What is the runtime of the SURT1000XLIM at full load versus half load?
A: At full 700W load, the SURT1000XLIM provides approximately 14 minutes of backup runtime. At half load (approximately 350W), runtime extends to roughly 32 minutes. Actual runtime varies with battery age and ambient temperature.
Q: What output waveform does the SURT1000XLIM produce during battery operation?
A: The SURT1000XLIM delivers a true sine wave output on battery — not a modified or simulated sine wave. This makes it compatible with active PFC power supplies found in servers, NVRs, and network appliances that may reject or run poorly on modified sine wave UPS units.
Q: Can the SURT1000XLIM be managed remotely over a network?
A: Out of the box, the SURT1000XLIM includes a DB-9 RS-232 interface for local management via APC PowerChute software. Remote network management requires an optional APC SmartSlot network management card installed in the unit's single expansion slot.
Q: What rack space does the SURT1000XLIM require?
A: The SURT1000XLIM occupies 2U of vertical rack space in a standard 19-inch rack enclosure. The unit is 19.02 inches deep, so confirm your rack's usable depth before installation. It can also be deployed in tower orientation if rack mounting is not required.
Q: What is the warranty on the SURT1000XLIM?
A: The SURT1000XLIM carries a 2-year manufacturer warranty.
Q: How long does the SURT1000XLIM battery take to recharge after a full discharge?
A: The single lead-acid battery pack recharges to full capacity in approximately 3 hours after a complete discharge cycle.
The SURT1000XLIM is one of the few rack-mount UPS units in this power class that specifies a true sine wave output alongside a marine-duty designation — a combination that matters when you're protecting NVR or switch infrastructure aboard a vessel or in an industrial environment where grid quality is genuinely unreliable, not just occasionally brownout-prone. The 700W real power rating at a 0.70 power factor is honest engineering: it tells you exactly what the unit can sustain, not a misleading VA number.
Technical Highlights:
- True Sine Wave at 700W: Active PFC power supplies in modern NVRs and servers will reject modified sine wave output or run hot and fail prematurely. The SURT1000XLIM's sine wave output eliminates that risk entirely — critical when protecting equipment you can't easily service at sea or at a remote site.
- 32-Minute Half-Load Runtime: At a realistic mixed surveillance load of 300–400W, expect runtime well above the headline 14-minute figure. A 32-minute half-load runtime is enough to ride out generator transfer sequences or execute a full controlled shutdown of a multi-camera recording system.
- SmartSlot Expansion: The single SmartSlot bay gives you a clear upgrade path to SNMP-based remote monitoring without replacing the unit. For a marine or remote installation where physical access is costly, adding a network management card is often the first thing you do after commissioning.
Deployment Considerations:
- At 50.71 lb and 19.02 inches deep, mount this unit in the lowest available rack position — both for stability and to keep the center of gravity manageable on a vessel. Confirm rack depth before ordering; some shipboard and industrial racks run shallower than standard.
- The single lead-acid battery is a user-replaceable consumable with a typical service life of 3–5 years depending on cycle frequency and ambient temperature. Budget for a replacement battery module in your maintenance plan; runtime degradation is gradual and easy to miss until a real outage exposes it.
The SURT1000XLIM is the right call for a shipboard security or communications rack — specifically where you need verified sine wave output, a documented surge rating, and a path to remote monitoring via SmartSlot, in a form factor that fits standard 19-inch marine rack enclosures without modification.
