Middle Atlantic Select Series UPS Backup Power 1RU 500VA - UPS-S500R

Middle Atlantic UPS-S500R Select Series 500VA 1RU Rack UPS Battery Backup

Overview

The Middle Atlantic UPS-S500R is a 500VA rack-mount uninterruptible power supply designed for 1RU integration into security, AV, and network enclosures. Built for integrators who need clean backup power in a shallow rack footprint, the UPS-S500R (often searched as UPS S500R) ships in a standard 19-inch wide chassis at just 1.73 inches tall — meaning it parks in a single rack unit without sacrificing any of the 6 protected outlets. At 9.06 inches deep, it fits cleanly in enclosures with as little as 19 inches of usable mounting depth, and accommodates rack depth up to 32 inches — covering everything from wall-mount low-voltage enclosures to full 4-post server racks. Browse the full Middle Atlantic power and rack solutions catalog to see compatible enclosures and accessories.

Key Features

• 500VA Power Capacity: Sized for small-to-mid security head-end equipment — enough runtime to protect an NVR, a PoE switch, and an access control panel during a short outage or to execute a clean shutdown. If you're running a larger multi-camera system with high-draw servers, size up; this unit isn't meant to carry full server loads.
• 1RU Form Factor (1.73 in tall, 19 in wide): Occupies a single rack unit in any EIA-standard rack or rack enclosure. At 19 inches wide with two mounting points, it installs cleanly without adapters or custom brackets in any standard 19-inch bay.
• 6 Protected Outlets: Six corded outlets give you enough positions to power an NVR, switch, access control panel, and supporting gear from a single unit — reducing the number of power strips or PDUs competing for rack space.
• 9.06-Inch Depth — Shallow-Rack Ready: The 9.06-inch chassis depth means this unit fits in wall-mount enclosures and compact rack cabinets where full-depth UPS units simply won't go. Minimum mounting depth is 19 inches, maximum is 32 inches, so verify your enclosure's usable depth before ordering.
• 10 ft Corded Power Input: The 10-foot (3.1 m) line cord gives you real flexibility in equipment room layouts — you're not forced to position the rack immediately adjacent to the wall outlet, which matters in closet installs where outlets are rarely where you need them.
• Basic Surge Protection: Provides surge suppression on all outlets, protecting connected equipment from voltage spikes. For environments with chronic power quality issues (industrial sites, older commercial buildings), review whether a higher-grade surge or line-conditioning unit is warranted.
• UL Listed: UL certification confirms the unit has been independently tested to recognized safety standards — relevant for any installation subject to AHJ inspection or insurance requirements.

Integration & Compatibility

The UPS-S500R fits any EIA 310-D compliant 19-inch rack rail system. With a mounting depth range of 19 to 32 inches, it is compatible with Middle Atlantic's own rack enclosures as well as third-party open-frame and enclosed racks within that depth window. The 6-outlet configuration suits typical security head-end builds: pair it with a network video recorder, a managed PoE switch, and an access control panel for a complete protected system. The corded AC input is standard NEMA, requiring no special wiring. Note: TAA compliance is not applicable to this SKU — verify procurement requirements for government projects before ordering. For PoE switch and network infrastructure pairing, see the PoE switches category.

Frequently Asked Questions

Q: Is the UPS-S500R TAA compliant?

A: No. The UPS-S500R is listed as TAA Non-Compliant. Government purchasers with TAA requirements should select an alternative model.

Q: How deep is the UPS-S500R, and what rack depths does it support?

A: The unit itself is 9.06 inches (23 cm) deep. It supports rack mounting depths from a minimum of 19 inches to a maximum of 32 inches (81.3 cm), making it compatible with shallow wall-mount enclosures as well as standard-depth rack cabinets.

Q: How many outlets does the UPS-S500R provide?

A: Six (6) outlets total, all on the unit's corded output. All outlets are covered by basic surge protection.

Q: What is the rack space requirement for the UPS-S500R?

A: The UPS-S500R occupies exactly 1 rack unit (1RU) in a standard 19-inch EIA rack. Its chassis height is 1.73 inches (4.4 cm) and width is 19 inches (48.3 cm).

Q: What is the input cord length on the UPS-S500R?

A: The input power cord is 10 feet (3.1 m) long, providing flexibility for equipment room and closet installations where wall outlets may not be directly adjacent to the rack.

Q: Is the UPS-S500R suitable for outdoor or harsh-environment installations?

A: No. The UPS-S500R is a rack-mount indoor unit with no environmental sealing rating. It is intended for installation inside a rack enclosure or equipment room, not in outdoor or wet locations.