Schneider Electric 58 TRX General Information and MCC Package Features

Class 8998 Motor Control Centers

General Information and MCC Package Features

212 09/2003

The Altivar® 58 TRX AC Drive in Motor Control Centers (MCCs) offe rs an economi cal, gener al purpose

drive in a high density, space sa ving packag e. Units are a v ail able in NEMA Type 1, Type 1 with gaskets,

and Type 12 (for drives less than 125 hp) MCC enclosures in the following ranges:

As standard, basic MCC Altivar 58 TRX AC Drive units include:

• Altivar 58 TRX AC drive.

• Operator keypad display mounted on the front of the unit.

• Disconnect (circuit breaker or fused switch).

• Class J power fuses (for drives less than 125 hp).

• Cooling fans.

• UL 845 Listed for 100,000 amperes short circuit current rating at 480 Vac.

• Control station plate with space for five 22 mm operators.

• Three-phase line reactor for drives above 25 hp variable torque (VT) @ 480 V, or above 20 hp

constant torque (CT) or variable torque low noise (VTLN) @ 480 V, or above 10 hp @ 208/240 V.

Most MCC Altivar 58 TRX AC Drive units are plug-on style saddles which can be factory/field-installed

in Model 6 MCCs or field-installed in Model 5 MCCs. There are no placement limitations for

mounting any Altivar 58 TRX AC Drive in Square D MCC sections. Drive units are designed with

standard features of Model 6 MCC units, such as:

• White interiors for greater visibility in maintenance.

• Cast metal disconnect handle for ruggedness.

• Twin-handle cam racking mechanism in plug-on units for easy installation/removal.

• Vertical and horizontal wireways are left undisturbed by the drive unit.

Integral to each MCC AC Drive unit is a thermal management system designed to maintain the drive

and other electrical devices at recommended temper atures. T he thermal man agement sy stem incl uded

in NEMA/EEMAC Type 1 or 1A (Gasketed) MCC Altivar 58 TRX AC Drive units consists of fans and

louvered doors which force outside air across the Altivar 58 TRX AC Drive component for cooling

purposes (see the figure on the next page).

The thermal management system included in NEMA/EEMAC Type 12 MCC Altivar 58 TRX AC Drive

units consists of a closed duct system to separate outside air from electrical components. Inlet and

outlet ducts allow airflow across the metal heatsink fins of the Altivar 58 TRX AC Drive component as

shown in the figure on the next page.

This totally enclosed duct cooled (TEDC) concept achieves the oiltight/dusttight rating required for

NEMA/EEMAC Type 12 and removes heat without contaminating the drive electronics or other MCC

units with outside air. The thermal management systems are self-powered and include protection to

shutdown the drive in case of fan or duct blockage.

Motor Ratings Variable Tor que

Applications Constant Torque

Applications Variable Torque, Lo w

Noise Applications

460 Vac, 3 Phase, 60 Hz 0.5 to 500 hp (up to 590 A) 0 .5 to 400 hp (up to 115 A) 0.5 to 75 hp (up to 96 A)

230 Vac, 3 Phase, 60 Hz 1 to 50 hp (up to 143 A) 1 to 40 hp (up to 116 A) 1 to 40 hp (up to 116 A)

200 Vac, 3 Phase, 60 Hz 1 to 50 hp (up to 143 A) 1 to 40 hp (up to 116 A) 1 to 40 hp (up to 116 A)

8998 ATV58 MCC Panel Section.tif 8998 ATV58 MCC Panel.tif