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LZMN3-4-A500/320-I 111976 EATON ELECTRIC Power Distribution Components IEC Moulded case circuit breaker View larger
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LZMN3-4-A500/320-I 111976 EATON ELECTRIC Power Distribution Components IEC Moulded case circuit breaker

LZMN3-4-A500/320-I

111976

EATON-MOELLER

Power Distribution Components IEC Moulded case circuit breaker

LZM circuit breaker, 4P, 500A, 320A

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Circuit Breakers LZM

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Delivery programme
Product range
 Circuit-breaker
Protective function
 System and cable protection
Standard/Approval
 IEC
Installation type
 Fixed
Release system
 Thermomagnetic release
Construction size
 LZM3
Description
 Set value in neutral conductor is synchronous with set value Ir of main pole.
Number of poles
 4 pole
Standard equipment
 Screw connection
Switching capacity
400/415 V 50 Hz
 Icu kA 50
Rated current = rated uninterrupted current
Rated current = rated uninterrupted current
 In= Iu A 500
Neutral conductor
 % of phase conductor CSA 60
Neutral conductor protection
 Reduced neutral conductor protection
Setting range
Overload trip
Ir A 400 - 500
Main pole
 Ir A 250 - 320
Short-circuit releases
Non-delayed
 Ii= Inx … 6 - 10
Technical data
General
Standards
 IEC/EN 60947, VDE 0660
Protection against direct contact
 Finger and back-of-hand proof to VDE 0106 part 100
Climatic proofing
 Damp heat, constant, to IEC 60068-2-78
Damp heat, cyclic, to IEC 60068-2-30
Mechanical shock resistance (10 ms half-sinusoidal shock) according to IEC 60068-2-27
 g 20 (half-sinusoidal shock 20 ms)
Safe isolation to EN 61140
Between auxiliary contacts and main contacts
 V AC 500
between the auxiliary contacts
 V AC 300
Weight
 kg 8.4
Mounting position
 
Vertical and 90° in all directions
With XFI earth-fault release:
- NZM1, N1, NZM2, N2: vertical and 90° in all directions
with plug-in unit
- NZM1, N1, NZM2, N2: vertical, 90° right/left
with withdrawable unit:
- NZM3, N3: vertical, 90° left
- NZM4, N4: vertical
with remote operator:
- NZM2, N(S)2, NZM3, N(S)3, NZM4, N(S)4: vertical and 90° in all directions
Direction of incoming supply
 as required
Degree of protection
Device
 In the area of the HMI devices: IP20 (basic protection type)
Enclosures
 with insulating surround: IP40with door coupling rotary handle: IP66
Terminations
 Tunnel terminal: IP10
Phase isolator and band terminal: IP00
Circuit-breakers
Rated current = rated uninterrupted current
 In= Iu A 500
Rated surge voltage invariability
 Uimp
Main contacts
 V 8000
Auxiliary contacts
 V 6000
Rated operational voltage
 Ue V AC 690
Overvoltage category/pollution degree
 III/3
Rated insulation voltage
 Ui V 1000
Use in unearthed supply systems
 V 690
Switching capacity
Rated short-circuit making capacity
 Icm
240 V 50/60 Hz
 Icm kA 187
400/415 V 50/60 Hz
 Icm kA 105
440 V 50/60 Hz
 Icm kA 74
525 V 50/60 Hz
 Icm kA 53
690 V 50/60 H
 Ic kA 40
Rated short-circuit breaking capacity Icn
 Icn
Icu to IEC/EN 60947 test cycle O-t-CO
 Icu kA
240 V 50/60 Hz
 Icu kA 85
400/415 V 50 Hz
 Icu kA 50
440 V 50/60 Hz
 Icu kA 35
525 V 50/60 Hz
 Icu kA 25
690 V 50/60 Hz
 Icu kA 20
Ics to IEC/EN 60947 test cycle O-t-CO-t-CO
 Ics kA
230 V 50/60 Hz
 Ics kA 85
400/415 V 50/60 Hz
 Ics kA 50
440 V 50/60 Hz
 Ics kA 35
525 V 50/60 Hz
 Ics kA 13
690 V 50/60 Hz
 Ics kA 5
Maximum back-up fuse, if the expected short-circuit currents at the installation location exceed the switching capacity of the circuit-breaker.
Rated short-time withstand current
t = 0.3 s
 Icw kA 3.3
t = 1 s
 Icw kA 3.3
Utilization category to IEC/EN 60947-2
 A
Rated making and breaking capacity
Rated operational current
 Ie A
AC-1
380 V 400 V
 Ie A 630
415 V
 Ie A 500
690 V
 Ie A 630
AC--3
380 V 400 V
 Ie A 450
415 V
 Ie A 450
660 V 690 V
 Ie A 450
DC-1
500 V DC
 Ie CSA 500
750 V DC
 Ie CSA 500
DC - 3
500 V DC
 Ie CSA 500
750 V DC
 Ie CSA 500
Lifespan, mechanical
 Operations 15000
Lifespan, electrical
AC-1
400 V 50/60 Hz
 Operations 5000
415 V 50/60 Hz
 Operations 5000
690 V 50/60 Hz
 Operations 3000
AC-2, AC-3
400 V 50/60 Hz
 Operations 2000
415 V 50/60 Hz
 Operations 2000
690 V 50/60 Hz
 Operations 2000
DC-1
500 V DC
 Operations 5000
750 V DC
 Operations 5000
DC - 3
500 V DC
 Operations 2000
750 V DC
 Operations 2000
Max. operating frequency
 Ops/h 60
Total downtime in a short-circuit
 ms < 10
Terminal capacity
Standard equipment
 Screw connection
Round copper conductor
Tunnel terminal
Solid
 mm2 1 x (16 - 185)
Copper busbar (width x thickness)
 mm
Bolt terminal and rear-side connection
Screw connection
 M10
Design verification as per IEC/EN 61439(Show features)(Hide features)
Technical data for design verification
Rated operational current for specified heat dissipation
 In A 500
Equipment heat dissipation, current-dependent
 Pvid W 130.5
IEC/EN 61439 design verification
10.2 Strength of materials and parts
10.2.2 Corrosion resistance
 Meets the product standard's requirements.
10.2.3.1 Verification of thermal stability of enclosures
 Meets the product standard's requirements.
10.2.3.2 Verification of resistance of insulating materials to normal heat
 Meets the product standard's requirements.
10.2.3.3 Verification of resistance of insulating materials to abnormal heat and fire due to internal electric effects
 Meets the product standard's requirements.
10.2.4 Resistance to ultra-violet (UV) radiation
 Meets the product standard's requirements.
10.2.5 Lifting
 Does not apply, since the entire switchgear needs to be evaluated.
10.2.6 Mechanical impact
 Does not apply, since the entire switchgear needs to be evaluated.
10.2.7 Inscriptions
 Meets the product standard's requirements.
10.3 Degree of protection of ASSEMBLIES
 Does not apply, since the entire switchgear needs to be evaluated.
10.4 Clearances and creepage distances
 Meets the product standard's requirements.
10.5 Protection against electric shock
 Does not apply, since the entire switchgear needs to be evaluated.
10.6 Incorporation of switching devices and components
 Does not apply, since the entire switchgear needs to be evaluated.
10.7 Internal electrical circuits and connections
 Is the panel builder's responsibility.
10.8 Connections for external conductors
 Is the panel builder's responsibility.
10.9 Insulation properties
10.9.2 Power-frequency electric strength
 Is the panel builder's responsibility.
10.9.3 Impulse withstand voltage
 Is the panel builder's responsibility.
10.9.4 Testing of enclosures made of insulating material
 Is the panel builder's responsibility.
10.10 Temperature rise
 The panel builder is responsible for the temperature rise calculation. Eaton will provide heat dissipation data for the devices.
10.11 Short-circuit rating
 Is the panel builder's responsibility. The specifications for the switchgear must be observed.
10.12 Electromagnetic compatibility
 Is the panel builder's responsibility. The specifications for the switchgear must be observed.
10.13 Mechanical function
 The device meets the requirements, provided the information in the instruction leaflet (IL) is observed.
Technical data ETIM 6.0
Low-voltage industrial components (EG000017) / Power circuit-breaker for trafo/generator/installation prot. (EC000228)
Electric engineering, automation, process control engineering / Low-voltage switch technology / Circuit breaker (LV < 1 kV) / Circuit breaker for power transformer, generator and system protection ([email protected] [AJZ716010])
Rated permanent current Iu
 A 500
Rated voltage
 V 690 - 690
Rated short-circuit breaking capacity lcu at 400 V, 50 Hz
 kA 50
Overload release current setting
 A 400 - 500
Adjustment range short-term delayed short-circuit release
 A 0 - 0
Adjustment range undelayed short-circuit release
 A 3000 - 5000
Integrated earth fault protection
 No
Type of electrical connection of main circuit
 Screw connection
Device construction
 Built-in device fixed built-in technique
Suitable for DIN rail (top hat rail) mounting
 No
DIN rail (top hat rail) mounting optional
 No
Number of auxiliary contacts as normally closed contact
 0
Number of auxiliary contacts as normally open contact
 0
Number of auxiliary contacts as change-over contact
 0
Switched-off indicator available
 No
With under voltage release
 No
Number of poles
 4
Position of connection for main current circuit
 Front side
Type of control element
 Rocker lever
Complete device with protection unit
 Yes
Motor drive integrated
 No
Motor drive optional
 Yes
Degree of protection (IP)
 IP20
Characteristics

Datasheet - PDF

▲
Title: Size: Type:
PDF EATON PRODUCT CATALOGUE LZM.pdf 5 Mbytes
PDF CATALOGUE EATON EN.pdf 51 Mbytes
EATON-111976-LZMN3-4-A500/320-I 551 Kbytes EATON-111976-LZMN3-4-A500/320-I

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