Middle Atlantic Secondary Attached 3 O/l MAG - MDCA3-MG

Middle Atlantic MDCA3-MG Secondary Attached Modular Power Unit

Overview

The Middle Atlantic MDCA3-MG is a compact secondary attached power unit delivering three 5-15R outlets in a surface-mount modular form factor — purpose-built to extend outlet availability directly at the rack or furniture installation point. At 6.13" x 1.75" x 2.5" and finished in magnesium, the MDCA3-MG integrates cleanly into Middle Atlantic's ModPower on-surface modular ecosystem, keeping power distribution organized and on-brand in AV, security, and IT rack deployments. The 3 ft (0.9 m) cord gives enough reach to connect to an adjacent primary unit or power source without excess cable management overhead. This unit is designed for domestic US use only — it is not rated for international deployment.

Key Features

• Three 5-15R Outlets: Three standard NEMA 5-15R receptacles provide plug-and-go compatibility with the full range of standard 15A devices — cameras, encoders, small network gear, AV processors — without adapters or special wiring.
• 3 ft Attached Cord: The 0.9 m cord length is sized for secondary unit daisy-chaining within a rack bay or surface furniture run. Long enough to reach a primary power source in most standard rack configurations, short enough to avoid cable clutter.
• Compact 6.13" x 1.75" x 2.5" Footprint: The slim profile fits within tight furniture cavities and modular rack sections where space is at a premium. At under 2.5" deep, it sits flush against surface-mount backplates without protruding into cable pathways.
• Magnesium Finish: The magnesium color matches Middle Atlantic's furniture and rack accessory palette, maintaining a consistent aesthetic in conference rooms, control centers, and open office AV installations where visible hardware is a consideration.
• Modular On-Surface Design: Engineered as part of the Middle Atlantic ModPower on-surface family, the MDCA3-MG slots into a coordinated ecosystem of primary and secondary units — meaning you can scale outlet density by adding secondary units rather than replacing the entire power run.
• Domestic US Use Only: The unit is not rated for international voltage or frequency standards. If your deployment spans international sites, source region-appropriate Middle Atlantic variants rather than using this unit with an adapter.

Integration and Compatibility

The MDCA3-MG is designed to work within the Middle Atlantic modular power on-surface product line as a secondary attached unit. It pairs with Middle Atlantic primary power units in the ModPower family, extending outlet count at the point of use. For rack and furniture power distribution planning, confirm the primary unit's circuit capacity before adding secondary units — the combined load of all attached devices must stay within the primary unit's rated amperage. The 5-15R receptacle type limits this unit to standard 15A plug devices; it is not suitable for 20A or twist-lock applications. Review your rack and enclosure layout to confirm surface clearance for the 2.5" depth before ordering. For broader Middle Atlantic power conditioning options including surge protection and UPS integration, evaluate primary units with those features built in — the MDCA3-MG itself does not advertise surge suppression or filtering in the available evidence.

Frequently Asked Questions

Q: What receptacle type does the MDCA3-MG use?

A: The MDCA3-MG uses NEMA 5-15R receptacles — three of them. These are standard 15-amp, 125V three-prong outlets compatible with the vast majority of commercial AV and security equipment power cords.

Q: How long is the power cord on the MDCA3-MG?

A: The attached cord is 3 ft (0.9 m). This is designed for secondary unit connections within a rack bay or furniture run, not for reaching a distant wall outlet.

Q: Can the MDCA3-MG be used internationally?

A: No. The MDCA3-MG is rated for domestic US use only and is not available for international deployment. Do not use it with voltage converters or outside North American standard power environments.

Q: What are the physical dimensions of the MDCA3-MG?

A: The unit measures 6.13" x 1.75" x 2.5" (155.8 x 44.5 x 63.5 mm). The slim profile is designed for tight surface-mount and modular rack furniture installations.

Q: Does the MDCA3-MG include surge protection?

A: The available manufacturer specifications for the MDCA3-MG do not document surge suppression or power filtering. If surge protection is a requirement, evaluate primary Middle Atlantic power units in the ModPower family that include those features.

Q: What color/finish is the MDCA3-MG?

A: Magnesium — coordinated to match Middle Atlantic's furniture and rack accessory line for consistent aesthetics in visible installations.

Marty Allison

The MDCA3-MG is a straightforward secondary outlet unit, but I've seen integrators underestimate it during rack planning — specifically the 3 ft cord constraint. That 0.9 m reach dictates where in your furniture or rack run you can physically position this unit relative to the primary, and getting it wrong means either a taut cord under tension or an ugly extension. Map the mounting points before you order multiples.

Technical Highlights:

• 3 x NEMA 5-15R Outlets: Three standard 15A receptacles handle the common tail-end devices in a rack bay — NTP servers, small encoders, wireless APs, security intercom power bricks — without needing a larger primary unit just for outlet count.
• 6.13" x 1.75" x 2.5" Form Factor: The 1.75" height is a practical spec: it fits within standard 1U furniture rail cutouts in Middle Atlantic enclosures, keeping the surface-mount profile tight and avoiding interference with adjacent cable trays.
• Magnesium Finish: Matches Middle Atlantic's broader furniture palette — relevant in boardrooms and open control environments where unfinished or mismatched hardware draws complaints from facilities teams.

Deployment Considerations:

• The MDCA3-MG (often searched as MDCA3 MG) is a secondary unit — it requires a Middle Atlantic primary ModPower unit as its upstream source. Verify the primary unit's circuit amperage covers the aggregate load of the primary plus all secondary units before commissioning.
• This unit is domestic US only, no international rating. If your project scope includes international sites, do not spec this unit as a global standard — source the region-appropriate variant from the Middle Atlantic line instead.

Best fit: multi-zone AV furniture runs and security operations center rack builds where outlet density at the point of use matters and Middle Atlantic ModPower is already the house standard — the MDCA3-MG extends that infrastructure cleanly without introducing a mismatched power component.