NZMH4-ME550

MCCB, 550A, 150kA, motor type

Trade Price

£4,292.62

Per

1

Unit

EACH

Pack Quantity

1

NZMH4-ME550

Information

Eaton Moeller series NZM - Molded Case Circuit Breaker. Circuit-breaker, 3p, 550A, H, 4

Technical Specifications

Product Length/Depth

401 mm

Product Height

207 mm

Product Width

210 mm

Product Weight

21 kg

Compliances

RoHS conform

Certifications

IEC/EN 60947

IEC

Rated operational current for specified heat dissipation (In)

550 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

37 kA

Rated short-circuit breaking capacity Icu (IEC/EN 60947) at 400/415 V, 50/60 Hz

50 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

Built-in device fixed built-in technique

Fixed

Amperage Rating

550 A

10.2.5 Lifting

Does not apply, since the entire switchgear needs to be evaluated.

Terminal capacity (copper strip)

Max. 10 segments of 32 mm x 1 mm (2x) at flat conductor terminal

Min. 6 segments of 16 mm x 0.8 mm at flat conductor terminal

10 segments of 50 mm x 1 mm (2x) at 1-hole module plate

Max. 10 segments of 50 mm x 1 mm (2x) at rear-side connection (punched)

10 segments of 80 mm x 1 mm (2x) at rear-side width extension

Min. 5 segments of 25 mm x 1 mm at rear-side connection (punched)

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)

Min. 60 mm x 10 mm at rear-side width extension

Max. 50 mm x 10 mm (2x) at rear-side 1-hole module plate

Max. 80 mm x 10 mm (2x) at rear-side width extension

Min. 25 mm x 5 mm at rear-side 1-hole module plate

50 mm x 10 mm (2x) at rear-side 2-hole module plate

Min. 25 mm x 5 mm direct at switch rear-side connection

M10 at rear-side screw connection

Max. 50 mm x 10 mm (2x) 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: 550 A

Ambient operating temperature - max

70 °C

Climatic proofing

Damp heat, cyclic, to IEC 60068-2-30

Damp heat, constant, to IEC 60068-2-78

Terminal capacity (aluminum stranded conductor/cable)

50 mm² - 240 mm² (4x) at 4-hole tunnel terminal

Terminal capacity (copper stranded conductor/cable)

120 mm² - 185 mm² (1x) direct at switch rear-side connection

50 mm² - 185 mm² (4x) direct at switch rear-side connection

Lifespan, electrical

2000 operations at 690 V AC-1

1000 operations at 690 V AC-3

2000 operations at 400 V AC-3

3000 operations at 415 V AC-1

2000 operations at 415 V AC-3

3000 operations at 400 V AC-1

Electrical connection type of main circuit

Screw connection

Short-circuit total breaktime

< 25 ms (≦ 415 V); < 35 ms (> 415 V)

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

50 kA

10.9.3 Impulse withstand voltage

Is the panel builder's responsibility.

Utilization category

B (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 - 1.5 mm² (2x)

0.75 mm² - 2.5 mm² (1x)

Equipment heat dissipation, current-dependent

33.58 W

Instantaneous current setting (Ii) - min

550 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

550 A (690 V AC-3)

544 A (400 V AC-3)

Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 230 V, 50/60 Hz

63 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

275 kA

Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 440 V, 50/60 Hz

50 kA

Degree of protection (IP), front side

IP66 (with door coupling rotary handle)

IP40 (with insulating surround)

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

100 kA

Instantaneous current setting (Ii) - max

7700 A

Overload current setting (Ir) - min

275 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

10000 operations

Overload current setting (Ir) - max

550 A

Voltage rating

690 V - 690 V

Terminal capacity (copper solid conductor/cable)

95 mm² - 240 mm² (6x) at rear-side width extension

120 mm² - 300 mm² (1x) at rear-side 1-hole module plate

300 mm² (4x) at rear-side width extension

35 mm² - 185 mm² (4x) at rear-side 2-hole module plate

95 mm² - 300 mm² (2x) at rear-side 1-hole module plate

95 mm² - 185 mm² (2x) at rear-side 2-hole module plate

50 mm² - 240 mm² (4x) at 4-hole tunnel terminal

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

1100 A

Degree of protection

IP20 (basic degree of protection, in the operating controls area)

IP20

Overvoltage category

III

Rated short-time withstand current (t = 1 s)

19.2 kA

Rated impulse withstand voltage (Uimp) at auxiliary contacts

6000 V

Terminal capacity (aluminum solid conductor/cable)

240 mm² (2x) at rear-side width extension

185 mm² - 240 mm² (1x) at rear-side 1-hole module plate

70 mm² - 240 mm² (6x) at rear-side width extension

50 mm² (4x) at rear-side 2-hole module plate

70 mm² - 185 mm² (2x) at rear-side 1-hole module plate

Switch off technique

Electronic

Rated short-time withstand current (t = 0.3 s)

19.2 kA

Ambient storage temperature - max

70 °C

Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 525 V, 50/60 Hz

50 kA

Optional terminals

Connection on rear. Strip terminal. 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

160 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

7700 A

Standard terminals

Screw terminal

Rated short-circuit making capacity Icm at 400/415 V, 50/60 Hz

187 kA

Rated operating power at AC-3, 400 V

315 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

187 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

NZM4

Direction of incoming supply

As required

Shock resistance

15 g (half-sinusoidal shock 11 ms)

Rated insulation voltage (Ui)

1000 V

Document Links

Datasheet