Trade Price
£2,032.94
Per
1
Unit
EACH
Pack Quantity
1
Eaton Moeller series NZM - Molded Case Circuit Breaker. Circuit-breaker, 3p, 350A, H3-ME350
Product Length/Depth
166 mm
Product Height
275 mm
Product Width
140 mm
Product Weight
7.001 kg
Compliances
RoHS conform
Certifications
IEC
IEC/EN 60947
Rated operational current for specified heat dissipation (In)
350 A
10.11 Short-circuit rating
Is the panel builder's responsibility. The specifications for the switchgear must be observed.
Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 690 V, 50/60 Hz
9 kA
Rated short-circuit breaking capacity Icu (IEC/EN 60947) at 400/415 V, 50/60 Hz
130 kA
10.4 Clearances and creepage distances
Meets the product standard's requirements.
10.12 Electromagnetic compatibility
Is the panel builder's responsibility. The specifications for the switchgear must be observed.
Mounting Method
Fixed
Built-in device fixed built-in technique
Amperage Rating
350 A
10.2.5 Lifting
Does not apply, since the entire switchgear needs to be evaluated.
Terminal capacity (copper strip)
Max. 10 segments of 24 mm x 1 mm + 5 segments of 24 mm x 1 mm at box terminal
Min. 6 segments of 16 mm x 0.8 mm at box terminal
Min. 6 segments of 16 mm x 0.8 mm at rear-side connection (punched)
10 segments of 50 mm x 1 mm (2x) at rear-side width extension
Max. 10 segments of 32 mm x 1 mm + 5 segments of 32 mm x 1 mm at rear-side connection (punched)
Max. 8 segments of 24 mm x 1 mm (2x) at box terminal
Handle type
Rocker lever
10.2.3.1 Verification of thermal stability of enclosures
Meets the product standard's requirements.
Ambient storage temperature - min
-40 °C
Fitted with:
Thermal protection
Protection against direct contact
Finger and back-of-hand proof to VDE 0106 part 100
Terminal capacity (copper busbar)
Max. 10 mm x 50 mm (2x) at rear-side width extension
M10 at rear-side screw connection
Max. 30 mm x 10 mm + 30 mm x 5 mm direct at switch rear-side connection
Min. 20 mm x 5 mm direct at switch rear-side connection
10.8 Connections for external conductors
Is the panel builder's responsibility.
Special features
IEC/EN 60947-4-1, IEC/EN 60947-2
The circuit-breaker fulfills all requirements for AC-3 switching category.
R.m.s. value measurement and “thermal memory”
Adjustable time delay setting to overcome current peaks tr at 6 x Ir also infinity (without overload releases)
All AC-3 rating data applies to direct switching by the circuit-breaker under normal operating conditions. If, for example, a contactor takes over AC-3 switching under normal operating conditions, the full rated uninterrupted current applies to the circuit-breaker, In = Iu.
Maximum back-up fuse, if the expected short-circuit currents at the installation location exceed the switching capacity of the circuit breaker (Rated short-circuit breaking capacity Icn)
Rated current = rated uninterrupted current: 350 A
Terminal capacity hint: Up to 240 mm² can be connected depending on the cable manufacturer.
Ambient operating temperature - max
70 °C
Climatic proofing
Damp heat, constant, to IEC 60068-2-78
Damp heat, cyclic, to IEC 60068-2-30
Terminal capacity (aluminum stranded conductor/cable)
50 mm² - 240 mm² (2x) at 2-hole tunnel terminal
25 mm² - 120 mm² (2x) direct at switch rear-side connection
25 mm² - 185 mm² (1x) at tunnel terminal
25 mm² - 120 mm² (1x) direct at switch rear-side connection
50 mm² - 240 mm² (1x) at 2-hole tunnel terminal
Terminal capacity (copper stranded conductor/cable)
25 mm² - 120 mm² (2x) at box terminal
35 mm² - 240 mm² (1x) at box terminal
25 mm² - 240 mm² (1x) direct at switch rear-side connection
50 mm² - 240 mm² (2x) at 2-hole tunnel terminal
16 mm² - 185 mm² (1x) at 1-hole tunnel terminal
25 mm² - 240 mm² (2x) direct at switch rear-side connection
Lifespan, electrical
2000 operations at 690 V AC-3
2000 operations at 400 V AC-3
5000 operations at 415 V AC-1
3000 operations at 690 V AC-1
5000 operations at 400 V AC-1
2000 operations at 415 V AC-3
Electrical connection type of main circuit
Screw connection
Short-circuit total breaktime
< 10 ms
Rated impulse withstand voltage (Uimp) at main contacts
8000 V
Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 400/415 V, 50/60 Hz
130 kA
10.9.3 Impulse withstand voltage
Is the panel builder's responsibility.
Utilization category
A (IEC/EN 60947-2)
Number of poles
Three-pole
Ambient operating temperature - min
-25 °C
10.6 Incorporation of switching devices and components
Does not apply, since the entire switchgear needs to be evaluated.
10.5 Protection against electric shock
Does not apply, since the entire switchgear needs to be evaluated.
Terminal capacity (control cable)
0.75 mm² - 2.5 mm² (1x)
0.75 mm² - 1.5 mm² (2x)
Equipment heat dissipation, current-dependent
36.75 W
Instantaneous current setting (Ii) - min
350 A
10.13 Mechanical function
The device meets the requirements, provided the information in the instruction leaflet (IL) is observed.
10.2.6 Mechanical impact
Does not apply, since the entire switchgear needs to be evaluated.
10.9.4 Testing of enclosures made of insulating material
Is the panel builder's responsibility.
Rated operational current
316 A (690 V AC-3)
349 A (400 V AC-3)
Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 230 V, 50/60 Hz
150 kA
Application
Use in unearthed supply systems at 690 V
10.3 Degree of protection of assemblies
Does not apply, since the entire switchgear needs to be evaluated.
Rated short-circuit making capacity Icm at 240 V, 50/60 Hz
330 kA
Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 440 V, 50/60 Hz
130 kA
Degree of protection (IP), front side
IP40 (with insulating surround)
IP66 (with door coupling rotary handle)
Rated short-circuit making capacity Icm at 525 V, 50/60 Hz
143 kA
Rated short-circuit making capacity Icm at 690 V, 50/60 Hz
74 kA
Instantaneous current setting (Ii) - max
4900 A
Overload current setting (Ir) - min
175 A
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.
Lifespan, mechanical
15000 operations
Overload current setting (Ir) - max
350 A
Voltage rating
690 V - 690 V
Terminal capacity (copper solid conductor/cable)
16 mm² (2x) direct at switch rear-side connection
16 mm² (2x) at box terminal
16 mm² (1x) direct at switch rear-side connection
16 mm² (1x) at tunnel terminal
300 mm² (2x) at rear-side width extension
Degree of protection (terminations)
IP10 (tunnel terminal)
IP00 (terminations, phase isolator and strip terminal)
10.9.2 Power-frequency electric strength
Is the panel builder's responsibility.
Short-circuit release non-delayed setting - min
700 A
Degree of protection
IP20
IP20 (basic degree of protection, in the operating controls area)
Overvoltage category
III
Rated short-time withstand current (t = 1 s)
3.3 kA
Rated impulse withstand voltage (Uimp) at auxiliary contacts
6000 V
Terminal capacity (aluminum solid conductor/cable)
16 mm² (1x) at tunnel terminal
16 mm² (1x) direct at switch rear-side connection
10 mm² - 16 mm² (2x) direct at switch rear-side connection
Switch off technique
Electronic
Rated short-time withstand current (t = 0.3 s)
3.3 kA
Ambient storage temperature - max
70 °C
Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 525 V, 50/60 Hz
33 kA
Optional terminals
Box terminal. Connection on rear. Tunnel terminal
Release system
Electronic release
Pollution degree
3
10.7 Internal electrical circuits and connections
Is the panel builder's responsibility.
Rated operating power at AC-3, 230 V
110 kW
10.10 Temperature rise
The panel builder is responsible for the temperature rise calculation. Eaton will provide heat dissipation data for the devices.
Functions
Motor protection
Phase failure sensitive
Short-circuit release non-delayed setting - max
4900 A
Standard terminals
Screw terminal
Rated short-circuit making capacity Icm at 400/415 V, 50/60 Hz
330 kA
Rated operating power at AC-3, 400 V
200 kW
Type
Circuit breaker
10.2.2 Corrosion resistance
Meets the product standard's requirements.
10.2.4 Resistance to ultra-violet (UV) radiation
Meets the product standard's requirements.
10.2.7 Inscriptions
Meets the product standard's requirements.
Rated short-circuit making capacity Icm at 440 V, 50/60 Hz
286 kA
Isolation
300 V AC (between the auxiliary contacts)
500 V AC (between auxiliary contacts and main contacts)
Number of operations per hour - max
60
Circuit breaker frame type
NZM3
Direction of incoming supply
As required
Shock resistance
20 g (half-sinusoidal shock 20 ms)
Rated insulation voltage (Ui)
1000 V
Datasheet