Middle Atlantic MDEF3-WH Modular Power End Unit, 3-Outlet, White
Overview
The Middle Atlantic MDEF3-WH is a surface-mount modular power end unit designed for Middle Atlantic ModPower furniture power systems. With three 5-15R receptacles and a 3 ft (0.9 m) cord, it terminates a modular power run cleanly — no exposed stub ends, no field-fabricated caps. If you are specifying power distribution for conference tables, collaboration furniture, or AV credenzas, the MDEF3-WH (often searched as MDEF3 WH) closes out the modular chain in white to match standard commercial furniture finishes.
Key Features
- 3x 5-15R Outlets: Three standard 15A receptacles handle typical AV and collaboration peripherals — laptops, displays, video bars, and charging bricks — without adapter dongles. No proprietary connectors to stock or special-order.
- 3 ft (0.9 m) Cord: The 3-foot lead gives enough slack to reach a furniture-integrated raceway or floor box without creating excess cable bulk under the table. Tight enough to keep the run tidy, long enough to route around table legs or cable management channels.
- End-Unit Form Factor: As a modular power end unit, the MDEF3-WH caps the downstream terminus of a ModPower chain. It receives power from the upstream module and provides the final outlet cluster — you get a finished look on both the functional and aesthetic ends of the run.
- White Finish: Matches white furniture systems and light-colored conference tables without requiring paint or covers. Color consistency matters in client-facing boardrooms and open-plan collaboration spaces where exposed hardware draws attention.
- Compact Shipping Profile: At 11.1 x 8.1 x 3.2 inches shipped, the MDEF3-WH stores efficiently and installs in tight furniture cavities. The low-profile form factor suits under-surface mounting in desks and credenzas where clearance is limited.
- Domestic-Only Product: The MDEF3-WH is not rated for international deployment. If the project requires 230V or non-US outlet configurations, specify the appropriate international variant from the Middle Atlantic product line rather than adapting this unit.
Integration and Compatibility
The MDEF3-WH is engineered for Middle Atlantic's ModPower surface-mount furniture power platform. It connects as the end unit in a modular daisy-chain, accepting the upstream power feed and providing three 5-15R outlets at the terminal position. Pair it with compatible Middle Atlantic mid-run modules to scale outlet count across longer tables or multi-station workstations. The white colorway is specified for installations using white furniture panels; a black variant exists for dark-finish furniture systems. Verify the upstream module's current rating against the aggregate load of all connected devices before finalizing the modular chain design.
Frequently Asked Questions
Q: What outlet type does the MDEF3-WH provide?
A: The MDEF3-WH provides three 5-15R receptacles — standard 15A US outlets compatible with typical two- and three-prong plugs used by laptops, displays, and AV peripherals.
Q: How long is the power cord on the MDEF3-WH?
A: The cord is 3 feet (0.9 meters), providing enough reach for most furniture-integrated raceway and floor-box configurations without excess slack.
Q: Can the MDEF3-WH be used internationally?
A: No. The MDEF3-WH is listed as not available internationally and is intended for US deployments only. Do not use it with 230V circuits or non-US outlet standards.
Q: What color finish does the MDEF3-WH come in?
A: White. It is designed for white furniture systems. If your furniture finish is dark or black, Middle Atlantic offers compatible end units in alternate colorways — verify the part number before ordering.
Q: Is the MDEF3-WH a standalone power unit or does it require other modules?
A: It is an end unit in the Middle Atlantic ModPower modular system, meaning it terminates a modular power chain rather than operating as a standalone unit. It requires an upstream ModPower module to supply power.
When I spec furniture power for conference and collaboration spaces, the end unit is where integrators often cut corners — and it shows. The MDEF3-WH earns its place by closing the ModPower chain with three properly rated 5-15R outlets and a 3 ft cord that actually reaches a floor box without a zip-tied extension cord running across the cable tray. It is a small detail that separates a finished installation from a field hack.
Technical Highlights:
- 3x 5-15R Outlets: Three 15A standard receptacles at the end position give the final workstation or table segment a full complement of power points without requiring a mid-run module just to add outlets at the terminus.
- 3 ft Cord: At 0.9 meters, the lead is long enough to clear most furniture base rails and cable routing slots but short enough that you won't be coiling up two feet of excess cord behind a credenza panel.
- White Colorway: In boardrooms and open-plan offices with white or light-gray furniture, color-matched hardware is a specification requirement, not a preference. The MDEF3-WH ships in white — no field painting, no mismatched trim panels.
Deployment Considerations:
- The MDEF3-WH is a terminal end unit — it needs an upstream ModPower module feeding it. Confirm the upstream module's current capacity covers the combined load of all outlets across the full modular chain before the install walk-through.
- This unit is US-only (not available internationally). For multi-region projects or facilities with international equipment standards, specify an appropriate international variant rather than running this unit through a step-down transformer.
The MDEF3-WH is the right call for white-finish conference tables and collaboration furniture in US commercial spaces where the ModPower platform is already specified — it finishes the power run cleanly and keeps the install looking intentional rather than improvised.
