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Middle Atlantic CLMMR2-DX Marinco 150 Amp Cam Connector — main product image
Middle Atlantic

Middle Atlantic CLMMR2-DX Marinco 150 Amp Cam Connector

★★★★★5.0 (2 reviews)

A 150A, 600V cam-type panel mount connector built for demanding power distribution — rated, weatherproof, and universally compatible.

$19.86*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Middle Atlantic CLMMR2-DX is a mini panel mount cam-type connector rated for 150 Amps at 600 Volts — a specification that places it squarely in commercial power distribution, temporary power infrastructure, and professional AV or staging applications. What distinguishes this connector from budget alternatives isn't the amperage rating itself, but the build behind it: super-tough nylon housing engineered to withstand both extreme temperatures and impact without cracking, a double set screw termination that holds wire securely through #2 AWG, and full UL and CSA listings that matter when installations need to pass inspection.

The CLMMR2-DX mates with cam connectors from any manufacturer — Middle Atlantic's CLM series follows the cam-type standard precisely enough that cross-brand compatibility is reliable rather than approximate. The blue color designation identifies this as a D-position connector in multi-circuit panel configurations, a detail that matters for anyone setting up a properly coded distribution system. NEMA 3R/4 weatherproof performance is available when the connector is paired with a compatible shrouded device. For electricians and power distribution professionals who want a cam connector they can trust to stay mated, stay tight, and pass a job-site inspection, the CLMMR2-DX delivers the specification and listing credentials to back that confidence.

Key Features

CL panel mount devices are constructed of super tough nylon housing which will not chip or crack under extreme temperatures and impact conditions.

Constructed of solid weatherproof materials, UL listed, CSA listed, NEMA 3R/4 rated when mated with a shrouded device

All CLM products mate precisely with all other manufacturers' cam products

Specifications

Brand
Middle Atlantic / Marinco
Model
CLMMR2-DX
Type
CLM Cam Type, Mini Panel Mount
Amperage
150 Amp
Voltage
600 Volt
Wire Gauge
#8 – #2 AWG
Connection Type
Double Set Screw
Gender
Male
Color / Position
Blue (D)
Housing Material
Super Tough Nylon
Listings
UL Listed, CSA Listed
Weather Rating
NEMA 3R/4 (when mated with shrouded device)

Pros & Cons

👍 Pros

  • Nylon housing resists chipping and cracking under extreme temperature swings and physical impact — relevant in mobile or temporary power distribution environments.
  • UL and CSA listed with NEMA 3R/4 weather rating (when mated) covers both indoor and outdoor panel installation scenarios.
  • Double set screw termination provides more secure wire grip than single-screw alternatives at this amperage.
  • Universal cam-type compatibility means it works with devices from any manufacturer — no proprietary ecosystem lock-in.
  • 600V rating gives headroom for commercial power distribution well beyond typical single-phase residential applications.

👎 Cons

  • The NEMA 3R/4 weather rating is only achieved when mated with a shrouded device — the connector alone is not weatherproof.
  • At 150A, proper installation requires working knowledge of electrical code and appropriate termination tools — this is not a DIY-tier component.
  • Blue color designation serves the D-position wiring convention; buyers should verify circuit position requirements before ordering to ensure correct color selection.
  • The panel mount form factor requires a compatible enclosure cutout — it's not a field-installable connector without an appropriate panel.

Frequently Asked Questions

The CLMMR2-DX accepts #8 through #2 AWG wire, secured via a double set screw design. That range covers most heavy-duty power distribution scenarios where a 150A cam connector is appropriate.
Yes — Middle Atlantic specifies that all CLM products mate precisely with cam connectors from other manufacturers. The cam-type standard is cross-brand compatible, so you're not locked into a single-vendor ecosystem.
Rated at 600 Volts, this connector is appropriate for commercial power distribution applications. It carries UL and CSA listings, and achieves NEMA 3R/4 weatherproof rating when mated with a shrouded device.
The double set screw provides two independent clamping points on the wire termination, reducing the risk of loosening under vibration or thermal cycling. For a 150A panel mount application, that added mechanical security matters for long-term connection integrity.
Blue designates the "D" position in the cam connector color coding convention — used to identify circuit position in multi-phase or multi-circuit panel arrangements, helping prevent cross-connection during installation.

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