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LZMC3-4-A400/250-I 111961 Y7-111961 EATON ELECTRIC Circuit-breaker, 4 p, 400A, 250A, in 4th pole
LZMC3-4-A400/250-I
111961
Y7-111961
EATON - MOELLER
1 Pcs.
Circuit-breaker, 4 p, 400A, 250A, in 4th pole
LZM circuit breaker, 4P, 400A, 250A
Automation > Power circuit-breaker for trafo/generator/installation protection
Circuit Breakers LZM
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The LZMC3-4-A400/250-I 111961 Y7-111961 EATON ELECTRIC Circuit-breaker, 4 p, 400A, 250A, in 4th pole is a four-pole molded case circuit breaker engineered to protect electrical distribution networks against damaging overcurrents and short circuits. Industrial switchgear setups incorporate units of this type to maintain reliable power distribution and isolate electrical faults.
Pricing, availability and lead time are confirmed per enquiry through an RFQ.
- Rated permanent current Iu (EF001389): 400 A
- Rated voltage (EF003977): 690 V
- Overload release current setting (EF002336): 320 A
- Adjustment range undelayed short-circuit release (EF007131): 2400 A
- Device construction (EF008240): Built-in device fixed built-in technique
- Integrated earth fault protection (EF007296): No
- Type of electrical connection of main circuit (EF006819): Screw connection
- Suitable for DIN rail (top hat rail) mounting (EF007250): No
- DIN rail (top hat rail) mounting optional (EF008904): No
- With switched-off indicator (EF007006): No
- With integrated under voltage release (EF001390): No
- Number of poles (EF001391): 4
- Position of connection for main current circuit (EF006671): Front
- Type of control element (EF006976): Rocker lever
- Complete device with protection unit (EF008906): Yes
- Motor drive integrated (EF006697): No
More info
▲General specifications
Product Name
Eaton Moeller series Power Defense molded case circuit-breaker
Catalog Number
111961
Model Code
LZMC3-4-A400/250-I
EAN
4015081115099
Product Length/Depth
166 mm
Product Height
275 mm
Product Width
185 mm
Product Weight
7.3 kg
Compliances
RoHS conform
Certifications
VDE 0660
IEC/EN 60947
IEC
IEC/EN 60947
IEC
Delivery program
Circuit breaker frame type
LZM3
Application
Use in unearthed supply systems at 690 V
Amperage Rating
400 A
Number of poles
Four-pole
Technical data - electrical
Voltage rating
690 V - 690 V
Voltage rating (DC)
750 VDC
Rated insulation voltage (Ui)
1000 V AC
Rated impulse withstand voltage (Uimp) at auxiliary contacts
6000 V
Rated impulse withstand voltage (Uimp) at main contacts
8000 V
Rated operational current
500 A (380/400 V AC-1, making and breaking capacity)
500 A (690 V AC -1, making and breaking capacity)
400 A (660-690 V AC-3, making and breaking capacity)
500 A (415 V AC-1, making and breaking capacity)
400 A (415 V AC-3, making and breaking capacity)
500 A (690 V AC -1, making and breaking capacity)
400 A (660-690 V AC-3, making and breaking capacity)
500 A (415 V AC-1, making and breaking capacity)
400 A (415 V AC-3, making and breaking capacity)
Current rating of neutral conductor
60% of phase conductor
Rated short-time withstand current (t = 0.3 s)
3.3 kA
Rated short-time withstand current (t = 1 s)
3.3 kA
Instantaneous current setting (Ii) - min
2400 A
Instantaneous current setting (Ii) - max
4000 A
Overload current setting (Ir)
200 A - 250 A
Overload current setting (Ir) - min
320 A
Overload current setting (Ir) - max
400 A
Short delay current setting (Isd) - min
0 A
Short delay current setting (Isd) - max
0 A
Short-circuit release non-delayed setting - min
2400 A
Short-circuit release non-delayed setting - max
4000 A
Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 230 V, 50/60 Hz
55 kA
Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 400/415 V, 50/60 Hz
36 kA
Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 440 V, 50/60 Hz
22.5 kA
Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 525 V, 50/60 Hz
9 kA
Rated short-circuit making capacity Icm at 240 V, 50/60 Hz
121 kA
Rated short-circuit making capacity Icm at 400/415 V, 50/60 Hz
76 kA
Rated short-circuit making capacity Icm at 440 V, 50/60 Hz
63 kA
Rated short-circuit making capacity Icm at 525 V, 50/60 Hz
24 kA
Rated short-circuit making capacity Icm at 690 V, 50/60 Hz
14 kA
Short-circuit total breaktime
< 10 ms
Electrical connection type of main circuit
Screw connection
Isolation
300 V AC (between the auxiliary contacts)
500 V AC (between auxiliary contacts and main contacts)
500 V AC (between auxiliary contacts and main contacts)
Overvoltage category
III
Utilization category
A (IEC/EN 60947-2)
Pollution degree
3
Lifespan, electrical
3000 operations at 690 V AC-1
2000 operations at 690 V AC-3
2000 operations at 400 V AC-3
5000 operations at 400 V AC-1
2000 operations at 690 V AC-3
2000 operations at 400 V AC-3
5000 operations at 400 V AC-1
Technical data - mechanical
Type
Circuit breaker
Release system
Thermomagnetic release
Mounting Method
Built-in device fixed built-in technique
Fixed
Fixed
Degree of protection
In the area of the HMI devices: IP20 (basic protection type)
IP20
IP20
Degree of protection (IP), front side
IP66 (with door coupling rotary handle)
IP40 (with insulating surround)
IP40 (with insulating surround)
Degree of protection (terminations)
IP00 (terminations, phase isolator and band terminal)
IP10 (tunnel terminal)
IP10 (tunnel terminal)
Protection against direct contact
Finger and back-of-hand proof to DIN EN 50274/VDE 0106 part 110
Shock resistance
20 g (half-sinusoidal shock 20 ms)
Number of auxiliary contacts (change-over contacts)
0
Number of auxiliary contacts (normally closed contacts)
0
Number of auxiliary contacts (normally open contacts)
0
Number of operations per hour - max
60
Handle type
Rocker lever
Position of connection for main current circuit
Front side
Direction of incoming supply
As required
Standard terminals
Screw terminal
Terminal capacity (copper busbar)
M10 at rear-side screw connection
Terminal capacity (copper solid conductor/cable)
16 mm² - 185 mm² (1x) at tunnel terminal
Climatic proofing
Damp heat, constant, to IEC 60068-2-78
Damp heat, cyclic, to IEC 60068-2-30
Damp heat, cyclic, to IEC 60068-2-30
Lifespan, mechanical
15000 operations
Design verification as per IEC/EN 61439 - technical data
Rated operational current for specified heat dissipation (In)
400 A
Equipment heat dissipation, current-dependent
96.48 W
Design verification as per IEC/EN 61439
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 Resist. of insul. mat. to abnormal heat/fire by internal elect. 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.
10.9.2 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.
Additional information
Features
Motor drive optional
Protection unit
Protection unit
Functions
System and cable protection
Special features