View larger
Images are for illustrative purposes only. Please refer to data sheet for details
LZMB2-4-A160-I 116431 Y7-116431 EATON ELECTRIC Circuit-breaker, 4 p, 160A
LZMB2-4-A160-I
116431
Y7-116431
EATON - MOELLER
1 Pcs.
Circuit-breaker, 4 p, 160A
LZMB2-4-A160-I
Eaton Moeller series Power Defense - Molded Case Circuit Breaker. Circuit-breaker LZM, 4 p, 160A, B2-4-A160-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.
Request a Quote
Pricing and availability are confirmed for each enquiry. Send this part and we will reply with price and lead time.
Request QuoteProduct Overview
A circuit-breaker, such as the LZMB2-4-A160-I 116431 Y7-116431 EATON ELECTRIC Circuit-breaker, 4 p, 160A manufactured by Eaton Moeller, is deployed in commercial and industrial electrical panels to automatically interrupt abnormal current flows such as overloads and short circuits. These protective components safeguard distribution lines, machinery, and personnel from electrical hazards while allowing manual switching for maintenance operations.
Pricing, availability and lead time are confirmed per enquiry through an RFQ.
- Rated permanent current Iu (EF001389): 160 A
- Rated voltage (EF003977): 440 V
- Overload release current setting (EF002336): 125 A
- Adjustment range undelayed short-circuit release (EF007131): 960 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): Yes
- 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
116431
Model Code
LZMB2-4-A160-I
EAN
4015081161737
Product Length/Depth
142 mm
Product Height
185 mm
Product Width
140 mm
Product Weight
3.5 kg
Compliances
RoHS conform
Certifications
VDE 0660
IEC
IEC/EN 60947
IEC
IEC/EN 60947
Product specifications
Type
Circuit breaker
Special features
Application
Use in unearthed supply systems at 440 V
Amperage Rating
160 A
Voltage rating
440 V - 440 V
Circuit breaker frame type
LZM2
Features
Protection unit
Motor drive optional
Motor drive optional
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
Fixed
Built-in device fixed built-in technique
DIN rail (top hat rail) mounting optional
Built-in device fixed built-in technique
DIN rail (top hat rail) mounting optional
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
38.4 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
In the area of the HMI devices: IP20 (basic protection type)
IP20
IP20
Direction of incoming supply
As required
Electrical connection type of main circuit
Screw connection
Current rating of neutral conductor
200% of phase conductor
Lifespan, mechanical
20000 operations
Overvoltage category
III
Rated operational current
160 A (415 V AC-3, making and breaking capacity)
300 A (380/400 V AC-1, making and breaking capacity)
300 A (415 V AC-1, making and breaking capacity)
160 A (660-690 V AC-3, making and breaking capacity)
300 A (380/400 V AC-1, making and breaking capacity)
300 A (415 V AC-1, making and breaking capacity)
160 A (660-690 V AC-3, making and breaking capacity)
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)
Number of poles
Four-pole
Terminal capacity (copper strip)
Min. 2 segements of 16 mm x 0.8 mm at rear-side connection (punched)
Max. 10 segments of 16 mm x 0.8 mm at rear-side connection (punched)
Max. 10 segments of 16 mm x 0.8 mm at box terminal
Min. 2 segments of 9 mm x 0.8 mm at box terminal
Max. 10 segments of 16 mm x 0.8 mm at rear-side connection (punched)
Max. 10 segments of 16 mm x 0.8 mm at box terminal
Min. 2 segments of 9 mm x 0.8 mm at box terminal
Lifespan, electrical
6500 operations at 415 V AC-3
10000 operations at 400 V AC-1
10000 operations at 415 V AC-1
10000 operations at 400 V AC-1
10000 operations at 415 V AC-1
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)
160 A
Release system
Thermomagnetic release
Short-circuit total breaktime
< 10 ms
Short-circuit release non-delayed setting - max
1600 A
Short-circuit release non-delayed setting - min
960 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
Min. 16 mm x 5 mm direct at switch rear-side connection
Max. 20 mm x 5 mm direct at switch rear-side connection
Min. 16 mm x 5 mm direct at switch rear-side connection
Max. 20 mm x 5 mm direct at switch rear-side connection
Terminal capacity (copper solid conductor/cable)
4 mm² - 16 mm² (2x) direct at switch rear-side connection
16 mm² (1x) at tunnel terminal
4 mm² - 16 mm² (1x) direct at switch rear-side connection
4 mm² - 16 mm² (2x) at box terminal
4 mm² - 16 mm² (1x) at box terminal
16 mm² (1x) at tunnel terminal
4 mm² - 16 mm² (1x) direct at switch rear-side connection
4 mm² - 16 mm² (2x) at box terminal
4 mm² - 16 mm² (1x) at box terminal
Terminal capacity (aluminum solid conductor/cable)
16 mm² (1x) at tunnel terminal
Terminal capacity (copper stranded conductor/cable)
25 mm² - 70 mm² (2x) direct at switch rear-side connection
25 mm² - 70 mm² (2x) at box terminal
25 mm² - 185 mm² (1x) at tunnel terminal
25 mm² - 185 mm² (1x) direct at switch rear-side connection
25 mm² - 185 mm² (1x) at box terminal
25 mm² - 70 mm² (2x) at box terminal
25 mm² - 185 mm² (1x) at tunnel terminal
25 mm² - 185 mm² (1x) direct at switch rear-side connection
25 mm² - 185 mm² (1x) at box terminal
Terminal capacity (aluminum stranded conductor/cable)
25 mm² - 185 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
1600 A
Instantaneous current setting (Ii) - min
960 A
Number of operations per hour - max
120
Overload current setting (Ir) - max
160 A
Overload current setting (Ir) - min
125 A
Overload current setting (Ir)
125 A - 160 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
Screw 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
8000 V
Rated insulation voltage (Ui)
690 V AC