Middle Atlantic Secondary Attached 3 O/l White - MDCA3-WH

Middle Atlantic MDCA3-WH Secondary Attached Modular Power Unit

Overview

The Middle Atlantic MDCA3-WH is a three-outlet secondary modular power unit designed for surface-mount deployments where a clean, white-finish power tap needs to attach directly to a primary modular power unit. Part of the Middle Atlantic modular power lineup, the MDCA3-WH ships with a 3 ft (0.9 m) cord and three 5-15R receptacles — the standard 15A NEMA configuration found on virtually every North American circuit. If you are building out a conference room, AV rack furniture piece, or a desktop workstation cluster and need supplemental outlets without running a dedicated circuit, this is the module that drops in without additional wiring complexity.

Key Features

• Three 5-15R Outlets: Standard 15A NEMA receptacles accommodate virtually any plug-in device — IP cameras, PoE injectors, encoders, small switches, or AV gear. Three positions means you can power a camera, a local switch, and a reader controller from a single module without a power strip creating cable chaos.
• 3 ft (0.9 m) Cord: The short cord is intentional — it keeps the secondary unit tethered close to the primary, which matters in furniture-based AV installs and rack-adjacent deployments where cord management is part of the finished look. Long enough to route cleanly; short enough that it does not pool on the floor.
• White Finish: The white color coordinates with lighter furniture systems, conference tables, and surface-mount power installations where a black unit would visually stand out. If your furniture or surface is white or light gray, the MDCA3-WH blends in where a standard black module would not.
• Modular Secondary Attachment: Designed to attach to a compatible Middle Atlantic primary modular power unit rather than mount independently. This keeps your outlet count flexible — add or remove the secondary as the power load at a given station changes, without rewiring or replacing the primary unit.
• Compact Shipping Footprint: At 6.13 x 1.75 x 2.5 inches shipped, the MDCA3-WH is dense enough to stage a half-dozen units in a small equipment cabinet, which matters when you are staging for a multi-room rollout.

Integration & Compatibility

The MDCA3-WH is part of Middle Atlantic's modular power distribution ecosystem. It is intended as a secondary attached unit — meaning it pairs with a Middle Atlantic primary surface power unit, not as a standalone device. Verify your primary unit model supports secondary attachment before ordering. The 5-15R receptacle type is compatible with standard 15A North American devices; it is not a 20A (5-20R) outlet, so circuits drawing close to 20A per device will need a different module. This unit is not available for international shipment — it is rated and configured for North American use only.

Frequently Asked Questions

Q: Can the MDCA3-WH be used as a standalone power unit without a primary module?

A: No. The MDCA3-WH is a secondary attached unit and is designed to connect to a compatible Middle Atlantic primary modular power unit. It is not designed for independent mounting.

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

A: The MDCA3-WH uses three 5-15R receptacles — the standard 15A NEMA outlet configuration for North American use.

Q: How long is the cord on the MDCA3-WH?

A: The cord is 3 ft (0.9 m) long, keeping the secondary unit tethered close to the primary for clean cable management.

Q: Is the MDCA3-WH available for international orders?

A: No. The MDCA3-WH is not available for international shipment and is configured for North American use only.

Q: What color is the MDCA3-WH?

A: White. It is designed to coordinate with lighter furniture systems and surface-mount installations where a white finish is needed.

Karl Wilson

The MDCA3-WH is a detail product — one of those items that makes or breaks a finished install. The 3 ft cord length is the spec that matters most here: it is short enough to keep the secondary unit flush against the primary without cord pooling, which is exactly what you need when this is going into a conference table power module or an AV furniture piece where the client will see the result.

Technical Highlights:

• 3 x 5-15R Outlets: Three standard 15A NEMA receptacles cover the typical mix at a workstation or AV station — a PoE injector, a local switch, and one spare — without any adapter hardware.
• 3 ft Cord: Keeps the secondary tethered within 0.9 m of the primary unit, which is the right distance for furniture-integrated power runs where excess cord is a code and aesthetics problem.
• White Finish: Matches white furniture surfaces directly — ordering the wrong color on a finished conference table install means a visible mismatch that the client notices immediately.

Deployment Considerations:

• Confirm your primary Middle Atlantic surface power unit supports secondary attachment before staging the MDCA3-WH — it is not a standalone device and will not mount independently.
• The 5-15R outlets are 15A rated; if any device on this module draws close to 20A, you need a 5-20R module instead — the MDCA3-WH will not support that load.

The MDCA3-WH is the right call for conference room AV furniture buildouts and modular workstation power installations in North American commercial spaces where outlet count, cord discipline, and finish color all matter to the final result.