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IZM32
Eaton IZM32 User Manual
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16
IZ
M3
2 / I
N3
2 lo
w vol
t
ag
e a
ir c
i
rc
u
i
t br
ea
ke
r
M
N
013017EN M
ay 20
2
2 w
w
w.eato
n.c
om
Sec
t
ion 3
: Cir
c
u
it br
e
ak
er des
c
r
ipt
ion and o
perat
io
n
1
1
3
4
4
8
7
6
2
5
9
10
5
2
1
4
3
6
7
8
9
10
Fixed primary terminal
(with optional vertical adapter)
Arc c
hamber
Mounting foot
Circuit breaker nameplate
T
ripper bar
Baf
fled arc c
hute cover
Secondar
y disconnect
Faceplate (front co
ver)
Integral lif
ting handle
Fixed horiz
ontal primar
y terminal
Figure
3-2 T
ypical fixed
circuit breaker
features (
front
and
rear vie
ws
)
19
21
Table of Contents
Table of Contents
3
Section 1: Introduction
5
General Information
5
Safety Features
6
Safe Practices
6
Qualified Personnel
6
Section 2: Receiving, Handling, and Installation
7
General Information
7
Suggested Tools
7
Unpacking Circuit Breaker
7
2-3.1 Storing Circuit Breaker
7
Lifting Circuit Breaker
8
Circuit Breaker Inspection
8
Adapting Cassette
9
2-6.1 Rejection Interlocks
9
2-6.2 Installing Secondary Jumpers
9
Installing Drawout Circuit Breaker
10
2-7.1 Circuit Breaker Positioning
10
2-7.2 Levering Circuit Breaker
12
Fixed Circuit Breaker
15
Circuit Breaker Operation
15
Technical Data
16
Section 3: Circuit Breaker Description and Operation
19
Introduction
19
Basic Circuit Breaker Assembly
22
Operating Mechanism
22
3-3.1 Manual Operation
23
3-3.2 Electrical Operation
23
3-3.3 Anti-Pump Feature
23
Electronic Tripping System
24
3-4.1 Microprocessor-Based Trip Unit
24
3-4.2 Rating Plug
24
3-4.3 Current Sensors
24
3-4.4 Frame Rating Module
24
3-4.5 Trip Actuator
25
3-4.6 Fixed High Instantaneous Non-Adjustable Trip
25
3-4.7 Non-Automatic Device
25
Secondary Contacts and Connection Diagrams
26
Section 4: Dimensional Drawings
27
Section 5: Protective Characteristic Curves
38
Section 6: Wiring Diagrams
48
Section 7: Inspection and Maintenance
55
General
55
General Cleaning Recommendations
55
When to Inspect
55
What to Inspect
55
7-4.1 Functional Field Testing
56
7-4.2 Arc Chute Inspection
56
7-4.3 Primary Contact Inspection
57
Section 8: Troubleshooting
59
Introduction
59
Other manuals for Eaton IZM32
Operation And Maintenance Instructional Manual
52 pages
Instructions
4 pages
Installation Guide
4 pages
Manual
8 pages
4
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Eaton IZM32 Specifications
General
Brand
Eaton
Model
IZM32
Category
Circuit breakers
Language
English
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