• Primary power distribution module includes transformer and other electronics for connection to control panel; order one per 5 FFUs
  • Serves as a master module for up to four secondary modules, each controlling up to 5 FFUs
  • Systems with more than four secondary modules require a booster module
  • Accommodates Night Service Switches (order NS control panel separately)
  • Simplifies connection of ceiling-mount lights and fan/filter units (FFUs) to a central operating panel
  • Each accommodates up to 5 lights and 5 FFUs and includes a step-down transformer for low-voltage control and operation status indicator circuits provides complete overload protection (order lights and FFUs separately)
  • Includes relays and circuit breakers for overload protection of all connected devices, AC contractors, and quick-connect fittings for lights and FFUs.
  • Each module must be wired to a separate 35-amp fused 120VAC circuit by a licensed electrician upon final installation of all PDM components (see below)
  • In some cases, electrical components may not ship with other components ordered in a Terra cleanroom; these components do not impede cleanroom installation and can be easily retrofitted at any time.
  • To calculate actual power usage, simply total current load of all Fan/Filter Units and Lights connected to each Power Distribution Module
  • Dramatically simplifies connection of ceiling-mount devices to your electrical system & allows centralized operation at a single control panel (no. 6600-23, order separately)
  • Since regulations vary considerably in different locations, Terra assumes no responsibility for meeting local building regulations, including fire and seismic codes.  Check your local planning department to see what regulations apply to your installation.


PDM Type: Primary

Unit of Measure: EA


Dimensions, Product: 17.5"W x 18.5"D x 6.25"H

Dimensions, Shipping: 25"W x 30.5"D x 12"H

Electrical Specifications: 120 V, 28 A, 4,200 W, 50/60 Hz

Marks & Listings: UL, ULC

Package Type: Crate

Weight, Product: 35 Lbs

Weight, Shipping: 71 Lbs

Features and Benefits

Power Distribution Module for Modular Cleanroom

Terra’s Power Distribution Modules (PDMs) drastically simplify connection of fan/filter modules (FFUs) and ceiling lights, while providing low-voltage power for one or more Control Panels. The high-voltage power distribution system is UL-listed for the highest safety and quality.

Quick-Connect Fittings

FFUs and lights can be easily added as cleanrooms requirements change, or disconnected for maintenance, without the need to run additional power lines or involve an electrician.

Operation Status Indicator Light

Modular Cleanrooms include a status indicator light in each corner, which glows when fan/filter units are operating and blinks when they are inactive.
Copyright 1999 - 2022 Terra Universal. Inc. All rights reserved.
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