Plenum Box
For CMJ450, 453, 455 and 500
This easy to install Plenum box is a universal solution for any false ceiling application.
Featuring the only slide-on lid design in the industry, this solution is the simplest and easiest
to install into virtually any application, specializing in low-ceiling environments.
PB-1
Compatible with all of
Peerless’ false ceiling plates
Simple lockdown with
slideable lid and optional
lockdown screw
Mounting brackets allow for
multiple attachment points
3" (76 mm) of lateral
adjustment for precise
placement
½" (13 mm), ¾" (19 mm)
and 1" (25 mm) knockouts
to run conduit
Optional internal knockouts
for clean installations in any
application
CLICK: www.peerlessmounts.com CALL: 800.865.2112 FAX: 708.865.2941
FEATURES
EASILY SLIDE-INTO-PLACE LID
Simple glide motion allows lid to
close in low-ceiling installations
CLEAN INSTALLATION
Three sized knockouts
allow various size
conduit and cable to
be routed internally
Knockouts for internal
gang box placement
Optional use of hinged lid
for routing cables
OPTIONAL LOCKDOWN
Includes optional lockdown screw
to seal and secure the lid of the
plenum box
Simple slide-on lid for
access in all applications
Package Specifications
Accessories
DIMENSIONS (W x H x D)
with adapter plate
PRODUCT WEIGHT LOAD CAPACITY FINISH AVAILABLE COLORS
PB-1
7.9" x 6" x 15"
(201 x 152 x 381 mm)
9.2 lb (4 kg) N/A
Scratch resistant
fused epoxy
White
Product Specifications
Model Numbers
WARRANTY: Limited 5-year
A R C H I T E C T S S P E C I F I C A T I O N S
The Plenum Box shall be a Peerless model PB-1 and shall be located where indicated on the plans. It shall be constructed of heavy gauge cold rolled steel and
feature scratch resistant white fused epoxy nish. Assembly and installation shall be done according to instructions provided by the manufacturer.
ACC460: Safety Cable Brackets for use with CMJ450 and CMJ453 Suspended Ceiling Kit models
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Peerless Industries, Inc. 3215 W. North Avenue Melrose Park, IL 60160 (800) 865-2112 (708) 865-8870 Fax: (708) 865-2941 www.peerlessmounts.com
All dimensions = inch (mm)
PB-1 Plenum Box for CMJ450, 453, 455 and 500
LIT-0392
PACKAGE SIZE
(W x H x D)
PACKAGE
SHIP WEIGHT
PACKAGE UPC CODE PACKAGE CONTENTS
UNITS IN
PACKAGE
PB-1
15.5" x 7.5" x 17.5"
(394 x 191 x 445 mm)
11.28 lb (5.12 kg) 735029262299
Plenum box and lid, installation hardware,
assembly instructions
1
(137)
14.99
7.55
6.18
1.37
7.79
1.37
5.38
1.04
3/4”
1/2”
1”
1/2”
3/4”
Holes for cable management
Knock out plate
Knock out plate
Mounting Bracket Front View
Mounting Bracket Top View
(199)
(35)
(192)
(157)
(26)
(35)
(381)
/