Class 8839 58M Enclosed AC Drives
General Information
144 09/2003
© 2000–2003 Schneider Electric All Rights Reserved

INTRODUCTION

Welcome to the Class 8839 58M Enclosed AC drive, the latest family of enclosed drive solutions from
Square D incorporating the Altivar 58 TRX platform. The Class 8839 58M Enclosed AC drive provides
a robust adjustable speed drive solution for a variety o f commercial and industrial applications. The
product features the rugged enclosure construction commonly expected by industrial users and
specifiers. The Class 8839 58M Enclosed AC drive is a full featured product, designed for maximum
flexibility and tailored to your customers’ specifications. Square D off ers a w ide arra y of pre- engineered
and customizeable options that include control, power, and enclosure configurations. Typical options
include industrial-rated control operators, circuit breaker disconnects, fully-rated isolation and bypass
contactors, line reactors, motor protection filters, door-mounted keypad display, PowerLogic®
monitoring, communication options, and construction that meets performance expectations.
Class 8839 58M Enclosed AC Drive Ratings
Class 8839 58M Enclosed AC drives are available at:
• 1–500 hp VT, 1–75 hp CT, @ 460 Vac and
• 1–50 hp VT, 1–40 hp CT, @ 208/230 Vac
• Consult Drives Product Support for CT ratings above 75 hp.
Standard and Engineered Options
Two option categories (Standard and E-Mods) allow Square D to balance customer requirements for
cost effective, fast turn around orders with complex, highly engineered, customized motor control
solutions. Standard options are pre-engineered and well defined with selection rules. Orders with
standard options are supported by an automated drawing process which produces electronically
generated “as built” customer documentation.
E-Mods (engineering options) require additional engineering effort to la yo ut, define interope rability, and
develop custom customer and manufacturing docu mentat ion . Standard enclo sure di me nsion s ma y not
apply to orders containing E-Mods. Orders containing E-Mods will have increased lead times.

ENCLOSURE TYPES

The Class 8839 58M Enclosed AC drive family is
available in three enclosure designs. Enclosure
designs are dependent on the horsepower, voltage,
and options selected.
Wall Mount
Wall-mounted enclosures are provided as standard f or
1–20 hp constant torque (CT) and 1–25 hp variable
torque (VT) @ 460 Vac drives, and for 1–7.5 hp CT
and 1–10 hp VT @ 208/230 Vac drives. The wall-
mounted Class 8839 58M Enclosed drives are
available in two enclosure sizes as follows with all
standard options, including integrated full speed
bypass, and Type 1 and Type 12 designs to meet
application requirements:
• 460 V, 1–25 hp VT and 1–20 hp CT in Enclosure
Size C
• 208/230 V, 1–5 hp VT and 1–5 hp CT in Enclosure
Size C
• 208/230 V, 7.5–10 hp VT and 7.5–10 hp CT in
Enclosure Size D
8839D wall mount angle copy.tif.tif