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Mitsubishi Electric NV-ZU Series Manuals
Manuals and User Guides for Mitsubishi Electric NV-ZU Series. We have
1
Mitsubishi Electric NV-ZU Series manual available for free PDF download: Handling And Maintenance
Mitsubishi Electric NV-ZU Series Handling And Maintenance (94 pages)
MOULDED CASE CIRCUIT BREAKERS, EARTH LEAKAGE CIRCUIT BREAKERS, EARTH LEAKAGE RELAYS & CIRCUIT PROTECTORS
Brand:
Mitsubishi Electric
| Category:
Industrial Electrical
| Size: 2.46 MB
Table of Contents
Table of Contents
2
1 Items to be Practiced Without Fail for Safety
3
Cautionary Instructions for Operation
3
Cautionary Instructions for Maintenance & Inspection
4
Cautionary Instructions for Work
5
2 Before Using
7
Cautionary Instructions in General
7
Operation
8
Switching Operation
8
Trip and Reset Operation
9
How to Set Current Rating, Trip Characteristic, Sensitive Current and Operating Time
12
Cautionary Instructions for Setting
12
How to Set Characteristics of Molded-Case Circuit Breakers [Electronic Overcurrent Tripping Type]
12
How to Set Characteristics of Molded-Case Circuit Breakers [Electronic Overcurrent Tripping Type]
14
How to Set Characteristics of Molded-Case Circuit Breakers [Applicable Models: NFE2000-S, NFE3000-S, NFE4000-S]
14
How to Set Inverse Time-Delay or Instantaneous Tripping Characteristics of Circuit Breakers [Adjustable Thermal or Magnetic Type]
15
How to Switch Voltage, Sensitivity Current and Operating Time (Time Delay Type) of Earth Leakage Circuit Breakers
15
How to Change Rated Current, Tripping Characteristic and Leak Tripping Characteristic Series Earth Leakage Circuit Breakers (Electronic Overcurrent Tripping Type)
16
How to Switch Voltage, Sensitivity Current and Operating Time of Earth-Leakage Relay
18
3 Installation
19
Notice for Selection
19
Normal Service Conditions
19
Non-Standard Conditions
20
Inspection at Arrival
21
Conditions During Transport and Storage
21
Transport
21
Storage
21
Installation and Connection
22
General
22
Installation
22
Connection
23
Mounting Direction
24
Distances between Circuit Breaker and Earthed Metal Parts
25
Current-Carrying Capacity and Operating Temperature
26
Breaker Arrangements
28
Instruction for Connections
34
Instruction for Accessories
43
External Accessories
55
4 Maintenance and Inspection
75
Initial Inspection
75
Periodical Inspection
79
Inspection after Tripping
79
Yardstick Service Life
80
Standard Tools and Measuring Instruments
80
5 Troubleshooting
81
Troubleshooting for Circuit-Breaker Proper (MCCB/ELCB)
81
Troubleshooting for Leakage Operation Portion
82
Troubleshooting of Accessories
82
Analysis of Unnecessary Operation
83
Classification of ELCB Operation
83
Detail of Operation
83
6 After-Sales Service
87
Countermeasures to be Taken in Case of Anomaly
87
After-Sales Service System
87
APPENDIX 1 Breaker Mounting Screws
88
APPENDIX 2 Standard Tightening Torque for Connections
89
APPENDIX 3 Operating Force of Handle
90
APPENDIX 4 Service Network
91
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