SQD and eSQD Direct Drive Square Inline Centrifugal Duct Fans

In-line/Sidewall Duct Fan Series

SQD and eSQD Models

Model Features

  • Exhaust air up to 2,800 CFM in high static pressure applications up to 1" w.g.
  • Direct drive units have low sound levels and quiet operation
  • Ideal for applications where space is limited
  • Non-overloading backward inclined wheel for efficiency at higher static pressures
  • AMCA Air and Sound Licensed
  • cULus 705 Listed
  • EcoWatt® (SQDe Models ONLY)

Ecowatt Registered   AMCA Air and Sound Licensed   cULus Listed

Model Overview

The SQD square inline duct mounted fan is available in sizes 6 through 15, moving up to 2,800 CFM, with static pressure capability up to 1". eSQD with electronically commutated (EC) motors are square inline duct mounted fan is available in sizes 8, 10, and 12. SQD units are the perfect selection for clean air applications where space is a leading consideration. The compact housing with removable access doors and side discharge capability can be mounted in any orientation.

The eSQD comes with S&P's Electronically Commutated Motor which offers the energy efficiency of a DC motor with the ease of maintenance of DD motors. The eSQD motors have mounted potentiometer and can be controlled by a 0-10V signal.

2 year fan housing warranty, 1 year motor warranty

SQD Specifications

Size CFM Range Max SP
6 93 to 424 1"
8 149 to 503 1/4"
10 305 to 1076 1/2"
12 529 to 1686 1/2"
15 793 to 2879 3/4"

eSQD Specifications

Size CFM Range Max SP
8 202 to 820 3/4"
10 292 to 1578 1"
12 500 to 2344 1"
Dimensional Drawing SQD

SQD

Size A B C
6 13" 14" 8-7/8"
8 16" 17" 11-7/8"
10 19" 20" 13-7/8"
12 23" 24" 15-7/8"
15 28" 29" 19-7/8"

eSQD

Size A B C
8 16" 17" 11-7/8"
10 19" 20" 13-7/8"
12 23" 24" 15-7/8"

Note: Additional accessories are available for certain products. Contact your S&P Representative for more information about these accessories.

Standard Accessories

Description  
Mounted and Wired Disconnect   Download
Filter Box   Download
Side Discharge   Download
Belt Guard   Download
Motor Cover   Download
Inlet Guard   Download
Outlet Guard   Download
Hanging Bracket/Mounting Foot with Hanging Spring Isolator   Download
Hanging Spring Isolator   Download
Hanging Rubber in Shear Isolator   Download
Assorted Disconnects   Download
Heavy-duty Disconnect   Download
Backdraft Damper   Download
Insulated Housing   Download

EcoWatt® Accessories

Description  
Constant Pressure System   Download
Potentiometer   Download
EC Motor Speed Control   Download

Description  
SQD and eSQD Catalog Pages   Download
SQD Product Submittal   Download
eSQD Product Submittal   Download
SQD IOM   Download
eSQD IOM   Download

  • General/Clean Air
  • Spark Resistant
  • Offices/Common Areas