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Mitsubishi NF-S Series Manuals
Manuals and User Guides for Mitsubishi NF-S Series. We have
1
Mitsubishi NF-S Series manual available for free PDF download: Technical Notes
Mitsubishi NF-S Series Technical Notes (80 pages)
MOULDED CASE CIRCUIT BREAKERS
Brand:
Mitsubishi
| Category:
Circuit breakers
| Size: 0.71 MB
Table of Contents
Table of Contents
2
1 Introduction
3
2 Features
4
Arc-Extinguishing Device - ISTAC
4
Digital ETR
5
3 Construction and Operation
7
4 Characteristics and Performance
12
Overcurrent-Trip Characteristics
12
Short-Circuit Trip Characteristics
12
Effects of Mounting Attitudes
13
DC Tripping Characteristics of AC-Rated Mccbs
13
Frequency Characteristics
13
Switching Characteristics
14
Dielectric Strength
14
5 Circuit Breakers Selection
15
Circuit Breakers Selection Table
15
6 Protective Co-Ordination
40
General
40
Interrupting Capacity Consideration
41
Selective-Interruption
42
Cascade Back-Up Protection
47
Limiting Characteristics
49
Protective Coordination with Wiring
50
Protective Coordination with Motor Starters
53
Coordination with Devices on the High-Voltage Circuit
55
7 Selection
58
For Motor Branch Circuits
58
For Lighting and Heating Branch Circuits
58
For Main Circuit
59
For Welding Circuits
59
For Transformer-Primary Use
61
For Capacitor Circuits
62
For Thyristor Circuits
63
Selection of Mccbs in Inverter Circuit
69
8 Environmental Characteristics
71
Atmospheric Environment
71
Vibration-Withstand Characteristics
72
Shock-Withstand Characteristics
73
9 Short-Circuit Current Calculations
74
Purpose
74
Definitions
74
Impedances and Equivalent Circuits of Circuit Components
74
Classification of Short-Circuit Current
77
Calculation Procedures
78
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