Middle Atlantic 8in. in. MPR 20A DBL DUPLEX MOD - M-2X20A

Middle Atlantic M-2X20A 8-Inch MPR 20A Double Duplex Power Module

Overview

The Middle Atlantic M-2X20A is a configurable 20-amp double duplex power module designed for integration into Middle Atlantic's MPR vertical power distribution system. Measuring 8 inches in depth (20.3 cm), this module slots directly into compatible MPR enclosures to deliver four 5-20R receptacles across two independent 15/20-amp circuits — giving rack integrators a clean, modular approach to distributing mains power inside security, AV, and network equipment racks. If you're building out a rack that mixes devices with standard NEMA 5-15 and higher-draw NEMA 5-20 plugs, the M-2X20A is the module to reach for.

The MPR modular architecture is what sets Middle Atlantic's Middle Atlantic power distribution line apart from fixed-outlet PDUs: rather than replacing an entire strip when your power requirements change, you swap or add individual modules. The M-2X20A fills one module slot and contributes 20 amps of 120VAC capacity to the overall rack power budget — a meaningful difference when your NVR, PoE switch, and UPS all share the same enclosure.

Key Features

• 20-Amp, 120VAC Rating: At 20A/120VAC, this module can support the full draw of high-current devices — workstations, multi-drive NVRs, or high-wattage PoE switches — without tripping a 15A breaker mid-shift. If your rack load profile exceeds 15A on any single branch, this is the correct module rather than a standard 15A duplex.
• Four 5-20R Receptacles: The NEMA 5-20R outlet accepts both standard 5-15P and 5-20P plugs, so you're not locked into a single plug type. Four outlets across the module means four devices share the two circuits without needing an additional power strip or multi-tap — keeping the rack interior clean and cable runs short.
• Two Independent Circuits: Splitting four outlets across two circuits gives you fault isolation. If one circuit trips or you need to de-energize a specific device group for maintenance, you don't lose the entire module's outlet count. This matters in 24/7 security operations where partial rack servicing without full power-down is the norm.
• Configurable Power Architecture: The MPR system's modular design lets you mix M-2X20A modules with surge, UPS, or filtering modules in the same enclosure. Configuring power at the module level means you're not paying for surge protection on circuits that don't need it, and you can add or reconfigure capacity as your rack evolves without replacing the PDU chassis.
• 8-Inch Depth (20.3 cm): The 8-inch depth profile fits standard rack enclosures and shallow-depth wall-mount cabinets where deeper PDUs create clearance problems. Verify your MPR chassis depth before ordering — this module is built for the MPR vertical distribution form factor, not horizontal bar-style PDUs.
• ETL Recognized: ETL Recognition (equivalent standing to UL Listing for North American markets) means the M-2X20A has been independently tested to relevant electrical safety standards. For commercial installations subject to AHJ inspection, ETL Recognized components satisfy the same code requirements as UL Listed equivalents — no asterisk needed on your submittal documentation.
• No Isolated Ground: This module does not provide isolated ground circuits. If your deployment includes audio equipment, medical-grade devices, or sensitive analog signal chains requiring a dedicated isolated ground, you'll need to spec a different module or provide isolated grounding at the panel level.

Integration & Compatibility

The M-2X20A is engineered for Middle Atlantic's MPR (Modular Power & Racking) vertical power distribution system. It installs into the MPR chassis module bays — confirm your specific MPR enclosure model accepts the M-2X20A double duplex form factor before ordering. The 5-20R receptacles are backward-compatible with standard NEMA 5-15P plugs, so mixed device populations (cameras, switches, NVRs) all connect without adapters. Pair the M-2X20A with a compatible rack power distribution chassis and a UPS module if runtime continuity is a requirement for your deployment. For installations governed by NEC Article 210, the 20-amp branch circuit rating aligns with 20A dedicated circuit wiring from the panel — consult your electrical contractor to confirm the upstream branch circuit is wired to 20A capacity (12 AWG minimum per NEC 210.19).

When planning total rack power, account for the M-2X20A's 20A maximum across both circuits. The two circuits should be treated as individual 20A branches for load calculation purposes — do not load both circuits to their combined 40A theoretical maximum from a single 20A upstream breaker. Standard 80% continuous load rule applies: plan for no more than 16A of continuous draw per circuit.

Frequently Asked Questions

Q: What outlet type does the M-2X20A use, and what plugs will fit?

A: The M-2X20A uses NEMA 5-20R receptacles, which accept both NEMA 5-20P (20-amp, T-slot) and standard NEMA 5-15P (15-amp, parallel blade) plugs. Most rack-mount security and network devices ship with 5-15P plugs and will connect without any adapter.

Q: How many circuits does the M-2X20A provide, and why does that matter?

A: The M-2X20A provides two independent circuits, each rated at 20 amps. Two circuits allow you to separate device groups — for example, keeping your NVR on one circuit and your PoE switch on another — so a single tripped breaker doesn't take down the entire rack.

Q: Does the M-2X20A include surge protection?

A: No. The M-2X20A is an always-on duplex power module with no built-in surge suppression. The MPR modular system allows you to add a separate surge or filtering module in another bay if protection is required — the M-2X20A itself provides clean, unsuppressed 120VAC distribution only.

Q: Is the M-2X20A compatible with all Middle Atlantic MPR enclosures?

A: The M-2X20A is designed for the Middle Atlantic MPR vertical power distribution chassis. Compatibility depends on your specific MPR enclosure model and available module bays. Verify the chassis accepts double duplex modules in the 8-inch depth form factor before purchasing.

Q: Does the M-2X20A provide an isolated ground?

A: No. The isolated ground specification is listed as 'No' for this module. If your installation requires isolated ground circuits — common in audio production, broadcast, or sensitive analog signal environments — you will need to specify a different module or handle isolated grounding at the electrical panel.

Q: What safety certifications does the M-2X20A carry?

A: The M-2X20A is ETL Recognized, which carries equivalent standing to a UL Listing for North American electrical safety compliance. ETL Recognition satisfies AHJ (Authority Having Jurisdiction) inspection requirements on commercial projects.

Jerry Tildsen

The M-2X20A earns its place in a rack the moment you have a mix of higher-draw devices that need 20-amp branch protection — and the two independent circuits are the spec I keep coming back to when planning power distribution for security operations centers and wiring closets.

Technical Highlights:

• 20A / 120VAC per circuit: Full 20-amp capacity on both circuits means you're not downgrading a high-draw NVR or PoE switch to a 15A outlet. At 120VAC, that's 2,400 watts of headroom per circuit — enough for most rack-mount security gear without derating.
• 5-20R Receptacles (×4): Four outlets in one module slot keeps your cable management tight. The 5-20R type accepts standard 5-15P plugs too, so you don't need adapter dongles dangling off every device in the bay.
• ETL Recognized: On commercial security installs where the AHJ reviews the panel schedule and rack documentation, ETL Recognized status on the M-2X20A (often searched as M 2X20A) satisfies the same listing requirement as UL — no variance or exception language needed on the submittal.

Deployment Considerations:

• Plan upstream wiring at 20A (12 AWG minimum per NEC 210.19) from the panel to each branch feeding this module — the outlet rating is only as good as the wire gauge behind it. A 15A circuit feeding a 20A module is a common field error.
• No isolated ground on this module — if you're racking broadcast, audio, or any analog signal processing gear alongside IP security equipment, plan isolated grounding at the panel or specify a different MPR module for those outlets.

For a physical security operations center rack where the load profile includes a multi-channel NVR, managed PoE switch, and workstation — all pulling varied amperages from a shared vertical PDU chassis — the M-2X20A gives you the outlet density and circuit separation to manage that load cleanly without overflow strips.