APC DIN Rail - Panel Mount Ups-without B - SUA500PDR

APC by Schneider Electric SUA500PDR DIN Rail Panel Mount UPS

Overview

The APC by Schneider Electric SUA500PDR is a 500VA / 320W uninterruptible power supply engineered for DIN rail and panel mount installations — the form factor that matters when your equipment lives inside an industrial enclosure, control cabinet, or access control panel rather than on a desk or in a rack. At 94% efficiency and a 7.4-minute full-load runtime, it gives embedded systems, IP surveillance controllers, and automation edge devices enough clean runtime to execute a graceful shutdown or ride through a momentary utility interruption without data corruption or relay chattering.

Where a standard desktop or rack UPS would be physically incompatible with a sealed enclosure build, the SUA500PDR mounts directly to standard DIN rail, keeping your power protection co-located with the equipment it serves. The black enclosure blends into typical panel interiors, and the LED display gives technicians an at-a-glance status read without needing to open a laptop or connect via software.

Key Features

• 500VA / 320W Output Capacity: Sized correctly for a single controller, an IP camera NVR appliance, or a cluster of PoE injectors drawing under 320W continuous — not oversized and not undersized. Over-speccing UPS capacity wastes panel space and money; under-speccing causes premature battery stress. At 320W, this unit is in the right range for light industrial edge loads.
• 94% Operating Efficiency: At 94%, the SUA500PDR wastes only 6% of input power as heat — meaning less thermal load inside your already-warm enclosure and lower operating cost over the life of the installation. High-efficiency UPS designs matter in always-on environments where the unit runs 24/7/365.
• 7.4-Minute Full-Load / 21-Minute Half-Load Runtime: At 320W (full load), you get 7.4 minutes of battery runtime — enough for a controlled system shutdown sequence or to bridge a brief utility interruption. Run your load at 160W (half load) and that stretches to 21 minutes, which covers most short-term outages in commercial building environments.
• 540J Surge Energy Rating: Transient voltage spikes on industrial power circuits are common, especially near HVAC equipment, motor starters, or elevator drives. The 540-joule surge suppression absorbs those transients before they reach sensitive control electronics — a meaningful specification in panel environments where the UPS shares a bus with inductive loads.
• Wide Input Voltage Window (75–154V): Accepting input from 75V to 154V before switching to battery means the SUA500PDR tolerates significant voltage sag and swell without unnecessarily draining the battery. In facilities with notoriously unstable utility power, this range reduces battery cycling and extends VRLA battery life.
• 47–63 Hz Input Frequency Acceptance: The wide frequency tolerance (47–63 Hz) makes this unit compatible with both 50Hz and 60Hz utility power without manual reconfiguration — useful when deploying standardized enclosure builds across international facilities.
• Sealed Lead Acid (VRLA) Battery — 2-Hour Recharge: VRLA chemistry is maintenance-free and safe for enclosed cabinet installation with no venting requirements. The 2-hour recharge time means the battery is back to full capacity quickly after a discharge event — important in environments where back-to-back outages are a real risk.
• 3 AC Outlets: Three protected output receptacles allow you to power multiple devices from a single UPS — for example, an NVR, a PoE switch, and a door controller from one panel-mount unit, rather than running separate power protection for each device.
• LED Status Display: On-panel LED indicators give technicians immediate status visibility during an inspection or service call — no software, no network connection required to confirm the UPS is healthy and on utility power.
• 0–40°C Operating Temperature: Rated for operation from 0°C to 40°C, which covers the typical range inside climate-controlled or passively cooled industrial enclosures in most commercial deployments. Storage is rated to -15°C / 45°C, so the unit ships and stores safely in unheated facilities.
• Up to 95% Relative Humidity (Non-Condensing): The 0–95% RH operating range accommodates humid environments like loading dock control panels, exterior-rated enclosures with filtered venting, and light industrial spaces — locations where a standard office UPS would be inappropriate.

Integration & Compatibility

The SUA500PDR is designed for standard DIN rail mounting, making it compatible with DIN 35mm rail systems found in virtually all industrial and commercial control enclosures. The three AC output receptacles accept standard loads — pair this unit with IP surveillance edge appliances, access control panels, building automation controllers, or similar embedded systems drawing under 320W combined.

Input power connects via standard AC wiring into the wide 75–154V input window, accommodating single-phase utility service in North American commercial and light industrial facilities. The 47–63 Hz frequency acceptance supports both domestic and international power standards, which simplifies standardized enclosure designs for multi-site deployments.

For surveillance applications, this UPS is appropriately sized to protect a small NVR, a network video recorder with two to four cameras, or an access control panel with door controllers. When sizing, account for your total connected load in watts — not VA — and use the 7.4-minute full-load runtime as your shutdown planning baseline. Pair with a power protection monitoring strategy and consider the IP camera and controller loads on each circuit before finalizing your enclosure design. If you need extended runtime, evaluate an external battery module or a higher-capacity unit in the APC DIN rail UPS line.

Frequently Asked Questions

Q: What is the maximum load the SUA500PDR can support?

A: The SUA500PDR supports up to 500VA / 320W of connected load. Keep total connected wattage at or below 320W for proper operation and accurate runtime estimates.

Q: How long will the SUA500PDR run on battery at full load?

A: At full 320W load, the rated battery runtime is 7.4 minutes. At half load (160W), runtime extends to approximately 21 minutes. These figures are based on a fully charged VRLA battery under normal operating conditions.

Q: Can the SUA500PDR be installed inside a sealed control enclosure?

A: Yes. The VRLA (sealed lead acid) battery chemistry requires no venting, making it safe for installation inside closed enclosures. Ensure the enclosure ambient temperature stays within the 0–40°C operating range for proper battery performance and longevity.

Q: What input voltage range does the SUA500PDR accept before switching to battery?

A: The unit operates on utility power between 75V and 154V input. Outside that range, it automatically switches to battery — helping extend battery life by only engaging the battery during genuine voltage events rather than minor sags.

Q: How long does it take to recharge the battery after a discharge?

A: The SUA500PDR recharges its VRLA battery in approximately 2 hours from a fully depleted state under normal utility power conditions.

Q: How many devices can be connected to the SUA500PDR?

A: The SUA500PDR provides 3 AC output receptacles. You can connect up to three separate devices, provided their combined wattage does not exceed 320W.

Marty Allison

The SUA500PDR is one of those products that solves a specific installation problem that rack UPS units simply cannot — getting reliable power protection inside a DIN rail enclosure without compromising the build. The 94% efficiency rating is the first thing I look at on a panel-mount UPS, because heat accumulation inside a sealed enclosure is a real failure driver, and a unit burning 6% as heat rather than 15–20% makes a measurable difference in enclosure thermal load over a multi-year deployment.

Technical Highlights:

• 75–154V Input Window: That 79-volt span of accepted input voltage is genuinely wide for a unit this size — it means the SUA500PDR sits on utility power through most sag events rather than cycling the battery unnecessarily, which directly translates to longer VRLA service life.
• 540J Surge Rating: In panel environments shared with inductive loads like HVAC contactors or elevator drives, 540 joules of surge absorption is the real protection value — the battery runtime gets the headlines, but it's the surge suppression that protects your control electronics day-to-day.
• 2-Hour Recharge Time: Fast recharge matters in facilities with recurring short outages. A unit that takes 8–10 hours to recharge leaves you exposed through the rest of a bad weather day; 2 hours puts you back to full protection quickly.

Deployment Considerations:

• Size your load carefully before specifying this unit — 320W is the hard ceiling, and in enclosures with NVRs plus PoE injectors plus controllers, it is easy to approach that limit. Add up actual device wattages, not VA ratings, and leave 20% headroom for battery longevity.
• VRLA batteries degrade faster at elevated temperatures — if your enclosure runs consistently above 30°C ambient, expect shorter battery replacement intervals than the rated service life. Plan a battery inspection into your annual maintenance schedule.

The SUA500PDR is the right call for access control or surveillance enclosure builds where DIN rail mounting is the only viable form factor and the connected load falls under 300W — particularly in light industrial sites, parking structure controller cabinets, or exterior equipment enclosures where a rack UPS would be physically incompatible with the installation.