IZM20 and IZM93 frame cassetterejection bracket kitEatNn Industries GmbHElectrical SectNr©2010 by EatNn Industries GmbHÄnderungen vorbehaltenSubject to alterations05/10 AWA1230-2437 / Z8698Moon/Doku/HengPrinted in USA (05/10)05/10 AWA1230-2437Effective May 2010Step 2: Position the bracket and hardware as shown for athree-pole cassette.Figure 2. Step 2Right SideHoleFront Hole Rear HoleStep 3: Position the bracket and hardware as shown for afour-pole cassette.Figure 3. Step 3Right SideHoleFront Hole Rear Hole

Eaton IZM20 Manual

IZM20

Section 1: Introduction

Safe practices

Qualified personnel

and installation

Table 2. Basic Circuit Breaker Weights

Adapting cassette

Figure 7. REMOVE Position

Figure 8. DISCONNECT Position

Fixed circuit breaker

Circuit breaker operation

and operation

Figure 15. Typical Fixed Circuit Breaker Features (Front and Rear Views)

Figure 16. Typical IZM63 and IZM99 Standard Frame Fixed Circuit Breaker Features (Front and Rear Views)

Figure 17. Typical IZM Drawout Circuit Breaker Front Cover

Basic circuit breaker assembly

Operating mechanism

Arc chambers

Electronic tripping system

Figure 28. Pictorial Diagram of Typical Current Sensing, Processing, and Tripping System

Figure 29. Digitrip RMS 1150 Programmable Trip Unit Installed in IZM Circuit Breaker

Secondary contacts and connection diagrams

Figure 33. Top View Secondary Connectors

Figure 38. Connection Diagram for IZM97 and IZM32 Frame with Digitrip 1150 (Type P Trip Unit)

Figure 41. Connection Diagram for IZM99 and IZM63 Frame with Digitrip 1150 with ABCABC Configuration (Type P Trip Unit)

Figure 42. Connection Diagram for IZM99 and IZM63 Frame with Digitrip 1150 with AABBCC Configuration (Type P Trip Unit)