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LZMB1-4-A40-I 111871 Y7-111871 EATON ELECTRIC Circuit-breaker, 4 p, 40A
LZMB1-4-A40-I
111871
Y7-111871
EATON - MOELLER
1 Pcs.
Circuit-breaker, 4 p, 40A
LZMB1-4-A40-I
Eaton Moeller series Power Defense - Molded Case Circuit Breaker. Circuit-breaker LZM, 4 p, 40A, B1-4-A40-I
Automation > Power circuit-breaker for trafo/generator/installation protection
Circuit Breakers LZM
Product condition, packaging, certifications and applicable manufacturer warranty terms are confirmed with the quotation.
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A circuit-breaker, identified as the LZMB1-4-A40-I 111871 Y7-111871 EATON ELECTRIC Circuit-breaker, 4 p, 40A from Eaton Moeller, provides dependable automated protection for low-voltage power distribution systems by interrupting current flow during overload or short-circuit conditions. These modular switching devices protect machinery, wiring, and infrastructure from electrical damage across industrial plants.
Pricing, availability and lead time are confirmed per enquiry through an RFQ.
- Rated permanent current Iu (EF001389): 40 A
- Rated voltage (EF003977): 440 V
- Overload release current setting (EF002336): 32 A
- Adjustment range undelayed short-circuit release (EF007131): 320 A
- Power loss (EF005387): None W
- Device construction (EF008240): Built-in device fixed built-in technique
- Integrated earth fault protection (EF007296): false
- Type of electrical connection of main circuit (EF006819): Frame clamp
- Suitable for DIN rail (top hat rail) mounting (EF007250): false
- DIN rail (top hat rail) mounting optional (EF008904): true
- With switched-off indicator (EF007006): false
- With integrated under voltage release (EF001390): false
- Number of poles (EF001391): 4
- Position of connection for main current circuit (EF006671): Front side
- Type of control element (EF006976): Rocker lever
- Complete device with protection unit (EF008906): true
More info
▲General specifications
Product Name
Eaton Moeller series Power Defense molded case circuit-breaker
Catalog Number
111871
Model Code
LZMB1-4-A40-I
EAN
4015081114191
Product Length/Depth
88 mm
Product Height
145 mm
Product Width
120 mm
Product Weight
1.324 kg
Compliances
RoHS conform
Certifications
IEC/EN 60947
VDE 0660
IEC
VDE 0660
IEC
Product specifications
Type
Circuit breaker
Special features
Application
Use in unearthed supply systems at 440 V
Amperage Rating
40 A
Voltage rating
440 V - 440 V
Circuit breaker frame type
LZM1
Features
Protection unit
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.
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.
Pollution degree
3
Mounting Method
Built-in device fixed built-in technique
DIN rail (top hat rail) mounting optional
Fixed
DIN rail (top hat rail) mounting optional
Fixed
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
Equipment heat dissipation, current-dependent
10.656 W
Utilization category
A (IEC/EN 60947-2)
Isolation
500 V AC (between auxiliary contacts and main contacts)
300 V AC (between the auxiliary contacts)
300 V AC (between the auxiliary contacts)
Number of auxiliary contacts (change-over contacts)
0
Number of auxiliary contacts (normally closed contacts)
0
Number of auxiliary contacts (normally open contacts)
0
Protection against direct contact
Finger and back-of-hand proof to DIN EN 50274/VDE 0106 part 110
Degree of protection
IP20
In the area of the HMI devices: IP20 (basic protection type)
In the area of the HMI devices: IP20 (basic protection type)
Direction of incoming supply
As required
Electrical connection type of main circuit
Frame clamp
Current rating of neutral conductor
200% of phase conductor
Lifespan, mechanical
20000 operations
Overvoltage category
III
Rated operational current
40 A (660-690 V AC-3, making and breaking capacity)
125 A (415 V AC-1, making and breaking capacity)
160 A (380/400 V AC-1, making and breaking capacity)
40 A (415 V AC-3, making and breaking capacity)
125 A (415 V AC-1, making and breaking capacity)
160 A (380/400 V AC-1, making and breaking capacity)
40 A (415 V AC-3, making and breaking capacity)
Degree of protection (IP), front side
IP40 (with insulating surround)
IP66 (with door coupling rotary handle)
IP66 (with door coupling rotary handle)
Degree of protection (terminations)
IP10 (tunnel terminal)
IP00 (terminations, phase isolator and band terminal)
IP00 (terminations, phase isolator and band terminal)
Number of poles
Four-pole
Terminal capacity (copper strip)
Max. 9 segments of 9 mm x 0.8 mm at box terminal
Min. 2 segments of 9 mm x 0.8 mm at box terminal
Min. 2 segments of 9 mm x 0.8 mm at box terminal
Lifespan, electrical
7500 operations at 400 V AC-1
10000 operations at 415 V AC-1
7500 operations at 415 V AC-3
10000 operations at 415 V AC-1
7500 operations at 415 V AC-3
Functions
System and cable protection
Shock resistance
20 g (half-sinusoidal shock 20 ms)
Position of connection for main current circuit
Front side
Rated operational current for specified heat dissipation (In)
40 A
Release system
Thermomagnetic release
Short-circuit total breaktime
< 10 ms
Short-circuit release non-delayed setting - max
400 A
Short-circuit release non-delayed setting - min
320 A
Terminal capacity (control cable)
0.75 mm² - 2.5 mm² (1x)
0.75 mm² - 1.5 mm² (2x)
0.75 mm² - 1.5 mm² (2x)
Terminal capacity (copper busbar)
M8 at rear-side screw connection
Max. 16 mm x 5 mm direct at switch rear-side connection
Min. 12 mm x 5 mm direct at switch rear-side connection
Max. 16 mm x 5 mm direct at switch rear-side connection
Min. 12 mm x 5 mm direct at switch rear-side connection
Terminal capacity (copper solid conductor/cable)
6 mm² - 16 mm² (2x) at box terminal
16 mm² - 95 mm² (1x) at tunnel terminal
10 mm² - 16 mm² (1x) at box terminal
10 mm² - 16 mm² (1x) direct at switch rear-side connection
6 mm² - 16 mm² (2x) direct at switch rear-side connection
16 mm² - 95 mm² (1x) at tunnel terminal
10 mm² - 16 mm² (1x) at box terminal
10 mm² - 16 mm² (1x) direct at switch rear-side connection
6 mm² - 16 mm² (2x) direct at switch rear-side connection
Terminal capacity (aluminum solid conductor/cable)
16 mm² (1x) at tunnel terminal
Terminal capacity (copper stranded conductor/cable)
25 mm² - 95 mm² (1x) at tunnel terminal
25 mm² (2x) direct at switch rear-side connection
25 mm² (2x) at box terminal
25 mm² - 70 mm² (1x) direct at switch rear-side connection
25 mm² - 70 mm² (1x) at box terminal
25 mm² (2x) direct at switch rear-side connection
25 mm² (2x) at box terminal
25 mm² - 70 mm² (1x) direct at switch rear-side connection
25 mm² - 70 mm² (1x) at box terminal
Terminal capacity (aluminum stranded conductor/cable)
25 mm² - 95 mm² (1x) at tunnel terminal
Handle type
Rocker lever
Short delay current setting (Isd) - max
0 A
Short delay current setting (Isd) - min
0 A
Instantaneous current setting (Ii) - max
400 A
Instantaneous current setting (Ii) - min
320 A
Number of operations per hour - max
120
Overload current setting (Ir) - max
40 A
Overload current setting (Ir) - min
32 A
Overload current setting (Ir)
32 A - 40 A
Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 230 V, 50/60 Hz
30 kA
Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 400/415 V, 50/60 Hz
25 kA
Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 440 V, 50/60 Hz
18.5 kA
Rated short-circuit making capacity Icm at 400/415 V, 50/60 Hz
53 kA
Rated short-circuit making capacity Icm at 440 V, 50/60 Hz
53 kA
Standard terminals
Box terminal
Rated short-circuit making capacity Icm at 240 V, 50/60 Hz
63 kA
Rated impulse withstand voltage (Uimp) at auxiliary contacts
6000 V
Rated impulse withstand voltage (Uimp) at main contacts
6000 V
Rated insulation voltage (Ui)
690 V AC