Plenum Box for CMJ500/455/453/450

The Peerless-AV PB-1 is an indoor, ceiling-mountable plenum box designed for Peerless-AV CMJ450, CMJ453, CMJ455, and CMJ500 ceiling plates. Intended for false-ceiling applications, it combines a cold-rolled-steel structure with a white fused-epoxy finish and scratch-resistant construction. The mounting box supports a maximum load of 10 lb and includes the installation hardware and assembly instructions needed for integration.

Ideal Use Cases

The PB-1 is suited to indoor installations that use a compatible Peerless-AV ceiling plate within a false ceiling. Its design is particularly relevant to low-ceiling environments, where the manufacturer identifies simple installation as a priority. Compatibility is specifically listed for the CMJ450, CMJ453, CMJ455, and CMJ500, allowing installers to select the box for those ceiling-plate models without relying on unspecified compatibility. The white finish also makes it appropriate for installations where the mounting hardware must coordinate with a white ceiling surface.

Why Choose This Model

This model provides a defined mounting solution for four Peerless-AV ceiling plates while supporting loads up to 10 lb. Its cold-rolled-steel construction provides the structural material specified for the product, while the fused-epoxy finish supplies a durable white exterior. The PB-1 is also listed as scratch resistant, an important characteristic for hardware that may be handled during ceiling installation and assembly. Its ceiling-mountable form factor and indoor rating clearly establish where and how the product is intended to be used.

Installation and Integration

The manufacturer describes the PB-1 as an easy-to-install, universal solution for false-ceiling applications. Its slide-on lid is designed to simplify installation across a variety of applications, with particular emphasis on low-ceiling settings. Assembly is required, and the package includes the plenum box, installation hardware, and assembly instructions. The listed mount functions include lockable, adjustable, and cable-management characteristics. Before installation, verify that the selected ceiling plate is a CMJ450, CMJ453, CMJ455, or CMJ500 and that the planned load does not exceed the stated 10 lb capacity.

Performance Highlights

• Maximum load capacity of 10 lb
• Compatible with Peerless-AV CMJ450, CMJ453, CMJ455, and CMJ500 ceiling plates
• Cold-rolled-steel construction
• White fused-epoxy finish
• Scratch-resistant exterior
• Ceiling-mountable form factor for indoor use
• Slide-on lid design intended to simplify installation
• Installation hardware and assembly instructions included

The PB-1 is supplied as one unit and is classified as a mounting box. Its specifications concentrate on physical installation, compatible ceiling plates, and load support rather than audiovisual signal processing or projector performance.

What Makes It Different

The defining feature is the slide-on lid. Peerless-AV describes it as the only design of its kind in the industry and positions it as a straightforward installation solution, especially where ceiling height is limited. Unlike a broadly described mounting accessory, the PB-1 provides an explicit compatibility list and a stated maximum load. The product is also identified as RoHS and TAA compliant, manufactured in the United States, and covered by a five-year limited warranty.

Final Assessment

The Peerless-AV PB-1 is a purpose-built plenum mounting box for CMJ450, CMJ453, CMJ455, and CMJ500 ceiling plates. Its 10 lb load capacity, cold-rolled-steel construction, scratch-resistant fused-epoxy finish, and slide-on lid address the core requirements of indoor false-ceiling installation. With installation hardware and instructions included, it offers a clearly specified option for compatible Peerless-AV ceiling-plate projects, including installations in low-ceiling environments.