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molded case circuit breakers - Eaton Canada

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ADVANTAGE TECHNOLOGY RETROFITS<br />

March 2001<br />

MOTOR CONTROL CENTERS<br />

Technology Upgrades<br />

In addition to standard retrofit capabilities, every vintage of MCC can be upgraded with ADVANTAGE motor starters.<br />

Consult Factory for other Manufacturer’s Motor Control Centers.<br />

11-300 Type W F10<br />

EASY START ADVANTAGE STARTER<br />

F2100 Easy Start EA Unit<br />

TVSS UPGRADE<br />

F2100 TVSS Unit<br />

Low Resolution Photo<br />

The Easy Start EA<br />

The Easy Start EA offers reduced voltage<br />

starting capability in a small, cool running<br />

package. The Easy Start EA uses SCRs to<br />

provide smooth, stepless acceleration for<br />

NEMA three-phase induction motors.<br />

Once the motor reaches full speed, an<br />

ADVANTAGE bypass contactor is automatically<br />

energized in parallel to the SCRs<br />

to handle the motor’s continuous duty<br />

requirements. Available in current ranges<br />

from 45 to 135 amperes, the Easy Start EA<br />

is the smallest solid-state reduced voltage<br />

starter in the industry. Consult the factory<br />

for availability and dimensions in replacement<br />

motor control center units.<br />

Transient Voltage Surge Suppression<br />

MCC Units<br />

A Transient Voltage Surge Suppression<br />

(TVSS) system is a hybrid MOV filter<br />

based suppression device that protects<br />

sensitive electronic equipment from damaging<br />

transients and electrical line noise.<br />

The TVSS is installed in parallel to the<br />

electrical <strong>circuit</strong>s in a motor control center<br />

and provides clean power to the motor<br />

starting <strong>circuit</strong>s. The TVSS will only react<br />

and draw (surge) current when the transient<br />

voltages or high frequency noise<br />

enters the motor starting <strong>circuit</strong> and<br />

exceeds the system’s nominal operating<br />

voltage. Installed in a plug-in MCC unit,<br />

the TVSS maximizes performance by<br />

219<br />

minimizing cable runs to the bus system<br />

and saves ”outboard“ wall space and field<br />

installation costs. A TVSS MCC unit is<br />

available for all Cutler-Hammer and<br />

Westinghouse vintage MCCs. Consult the<br />

factory for further information.<br />

O

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