Corded High Bays Approved Cord Plug & Mounting Configurations

A corded high bay still needs a complete connection plan

A high bay supplied with a cord still needs a supported mounting arrangement, a suitable electrical connection and a service plan. A bare-end cord, a factory plug option and a modular connection system are different purchasing configurations. Treating them as interchangeable can move unresolved work from the quote to the installation crew.

Before comparing corded UFO high bays or corded linear high bays, establish what the installation actually requires. A quotation should identify the fixture input voltage, cord length, termination, mating equipment, controls and mounting hardware. Mark which components arrive with the luminaire and which are supplied separately. Otherwise, two apparently similar prices may cover different amounts of the finished assembly.

Keep the support path separate from the power path

The mount supports the fixture through an approved assembly. The power connection supplies it. Do not assume that the presence of a cord authorizes suspending the luminaire by that cord. Follow the exact manufacturer's mounting instructions and the applicable professional design.

RAB's RBAY17 instructions describe V-hook/chain mounting and separate pendant accessories. That is an example of a documented mechanical system, not a universal mounting procedure for every high bay. Review the covered mounting arrangements and confirm the appropriate option for the actual ordered model.

Mounting also establishes the light's position. Changing a suspension arrangement to reach an existing connection point can change mounting height or fixture alignment. Check those consequences against the high-bay layout before accepting the change; a convenient electrical connection does not establish that the revised light distribution will serve the work below.

Write the cord and plug as an exact configuration

RAB's RBAY17 family sheet lists an optional eight-foot cord and eight-foot cord-and-plug options: NEMA L5-15P for 120V, L7-15P for 277V and L8-20P for 480V. Those combinations belong to this family. Match the selected option to the exact fixture variant and supply; the presence of a plug choice in a family sheet does not make every suffix combination available.

Have qualified personnel establish the supply and intended connection before ordering. A photograph can help identify equipment, but it cannot substitute for the ratings and complete model designation. If the specified plug does not match the site arrangement, resolve the equipment selection or installation design before delivery instead of treating connector modification as an installation detail.

A modular system needs its own accessories

Cooper's OHB ordering sheet, PS507035EN dated April 2, 2026, requires MC or MPC cord accessories with the MP modular-plug option. It lists three- and six-foot accessory choices and requires voltage to be specified for plugs. The mounting notes add another dependency: the hook and loop accessories require the OHB-SPM hub, and single-point mounting is unavailable with integrated emergency equipment. These conditions belong on the bill of materials, where incompatible option combinations can be resolved before release.

A modular connector from one system should not be assumed compatible with another from appearance alone. Request the documented mating equipment and installation instructions.

Choose the length around the intended route

Survey the distance between the supported fixture and the intended connection point along the actual permitted route. Account for the mount and service arrangement. Avoid choosing cord length from the straight-line ceiling distance while ignoring obstructions or access.

For example, a six-foot permitted route and an eight-foot factory cord leave two feet to account for in the installation design. That dimensional allowance is useful only if the installer can manage the cord as the equipment instructions permit. Include the actual route and connection location in the submittal so cord length is evaluated with the intended mounting and service access, rather than selected from a rough floor-plan distance.

Survey obstructions such as beams, racks and mechanical services before committing to a length. If a connection point is misplaced, a longer cord may still leave an unsuitable route. Flag that location for design resolution so the installation crew receives a complete arrangement instead of a box of parts that almost reaches.

Separate dimming from the supply connection

A power plug does not necessarily carry the dimming connection. For example, the RBAY17 family sheet calls for a separate 0–10V DC dimming circuit. Specify how the selected driver connects to the intended controls, including any separate control connector or factory option. The 0–10V compatibility guide explains the driver and control checks that remain necessary after the supply connection is selected.

For wireless controls, identify the supported driver, receiver and commissioning method as a complete arrangement. Decide which fixtures share a zone and how occupants override automatic operation. Where emergency equipment is included, use the manufacturer's supported emergency configuration and its service procedure; an ordinary power connector should not be assumed to define the emergency system's behavior.

Make the service method part of acceptance

Identify how qualified staff will isolate, access and remove the fixture or serviceable component. A cord-and-plug description does not authorize disconnection under load or every maintenance action. Follow the exact equipment documents and professional procedures.

At handover, demonstrate the intended switching and dimming sequence, and retain the installed model, cord option, connector and mount identifiers with the lighting submittal. Include separately supplied accessories. A future replacement order can then reproduce the accepted assembly without relying on a photograph taken from the floor.

The completed order should leave no ambiguity about who supplies each cord, connector, receptacle and support component. “Corded” becomes useful when it describes a documented assembly that the installation and maintenance teams can reproduce.