Product range |
Circuit-breaker |
Protective function |
Systems, cable, selectivity and generator protection |
Standard/Approval |
IEC |
Installation type |
Fixed |
Release system |
Electronic release |
Construction size |
NZM4 |
Description |
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) Adjustable delay time tsd: Steps: 0, 20, 60, 100, 200, 300, 500, 750, 1000 ms i2t constant function: switchable NZM4...S1 terminal type: Insulated busbar connection (NZM4-XKS screw connection) |
Number of poles |
3 pole |
Standard equipment |
Screw connection |
Rated current = rated uninterrupted current [In = Iu] |
630 A |
1000 V 50/60 Hz [Icu] |
20 kA |
Overload trip [Ir
] 315 - 630 A
Short-circuit releases [Irm
] >Non-delayed [Ii = In x …] |
315 - 630 A |
Short-circuit releases [Irm
] >Delayed [Isd = Ir x …] |
2 - 12 |
Rated surge voltage invariability [Uimp
] >Main contacts |
2 - 10 |
Rated surge voltage invariability [Uimp
] >Auxiliary contacts |
8000 V |
Rated operational voltage [Ue] |
6000 V |
Rated current = rated uninterrupted current [In = Iu] |
1000 V AC |
Overvoltage category/pollution degree |
630 A |
Rated insulation voltage [Ui
] |
III/3 |
Utilization category |
1000 V |
Ambient temperature >Ambient temperature, storage |
B |
Ambient temperature >Operation |
- 40 - + 70 °C |
240 V 50/60 Hz [Icm
] |
-25 - +70 °C |
400/415 V 50/60 Hz [Icm
] |
275 kA |
440 V 50/60 Hz [Icm
] |
187 kA |
525 V 50/60 Hz [Icm
] |
187 kA |
690 V 50/60 H [Ic] |
143 kA |
1000 V 50/60 Hz [Icm] |
100 kA |
Icu to IEC/EN 60947 test cycle O-t-CO [Icu] >240 V 50/60 Hz [Icu
] |
40 kA |
Icu to IEC/EN 60947 test cycle O-t-CO [Icu] >400/415 V 50 Hz [Icu
] |
125 kA |
Icu to IEC/EN 60947 test cycle O-t-CO [Icu] >440 V 50/60 Hz [Icu
] |
85 kA |
Icu to IEC/EN 60947 test cycle O-t-CO [Icu] >525 V 50/60 Hz [Icu
] |
85 kA |
Icu to IEC/EN 60947 test cycle O-t-CO [Icu] >690 V 50/60 Hz [Icu
] |
65 kA |
Icu to IEC/EN 60947 test cycle O-t-CO [Icu] >1000 V 50/60 Hz [Icu] |
50 kA |
Ics to IEC/EN 60947 test cycle O-t-CO-t-CO [Ics] >230 V 50/60 Hz [Ics
] |
20 kA |
Ics to IEC/EN 60947 test cycle O-t-CO-t-CO [Ics] >400/415 V 50/60 Hz [Ics
] |
63 kA |
Ics to IEC/EN 60947 test cycle O-t-CO-t-CO [Ics] >440 V 50/60 Hz [Ics
] |
50 kA |
Ics to IEC/EN 60947 test cycle O-t-CO-t-CO [Ics] >525 V 50/60 Hz [Ics
] |
50 kA |
Ics to IEC/EN 60947 test cycle O-t-CO-t-CO [Ics] >690 V 50/60 Hz [Ics] |
50 kA |
Ics to IEC/EN 60947 test cycle O-t-CO-t-CO [Ics] >1000 V AC [Ics] |
37 kA |
t = 0.3 s [Icw
] |
15 kA |
t = 1 s [Icw
] |
19.2 kA |
Lifespan, mechanical [Operations] |
19.2 kA |
Max. operating frequency |
10000 |
1000 V 50/60 Hz [Operations] |
60 Ops/h |
Standard equipment |
Lifespan, mechanical: of which max. 50 % trip by shunt/undervoltage release |
Round copper conductor >Tunnel terminal >Stranded >4-hole |
500 |
Round copper conductor >Bolt terminal and rear-side connection >Module plate >Single hole [min.] |
Screw connection |
Round copper conductor >Bolt terminal and rear-side connection >Module plate >Single hole [max.] |
4 x (50 - 240) mm2
|
Round copper conductor >Bolt terminal and rear-side connection >Module plate >Double hole [min.] |
1 x (185 - 240) mm2
|
Round copper conductor >Bolt terminal and rear-side connection >Module plate >Double hole [max.] |
2 x (70 - 185) mm2
|
Round copper conductor >Bolt terminal and rear-side connection >Connection width extension >Connection width extension |
4 x 50 mm2
|
Al conductors, Cu cable >Tunnel terminal >Stranded >4-hole |
4 x (35 - 185) mm2
|
Cu strip (number of segments x width x segment thickness) >Flat conductor terminal [min.] |
2 x 240 6 x (70 - 240) mm2
|
Cu strip (number of segments x width x segment thickness) >Flat conductor terminal [max.] |
4 x (50 - 240) mm2
|
Cu strip (number of segments x width x segment thickness) >Module plate >Single hole |
6 x 16 x 0.8 mm |
Cu strip (number of segments x width x segment thickness) >Bolt terminal and rear-side connection >Flat copper strip, with holes [min.] |
(2 x) 10 x 32 x 1.0 mm |
Cu strip (number of segments x width x segment thickness) >Bolt terminal and rear-side connection >Flat copper strip, with holes [max.] |
(2 x) 10 x 50 x 1.0 mm |
Cu strip (number of segments x width x segment thickness) >Bolt terminal and rear-side connection >Connection width extension |
(2 x) 10 x 50 x 1.0 mm |
Copper busbar (width x thickness) [mm] >Bolt terminal and rear-side connection >Screw connection |
(2 x) 10 x 50 x 1.0 mm |
Copper busbar (width x thickness) [mm] >Bolt terminal and rear-side connection >Direct on the switch [min.] |
(2 x) 10 x 80 x 1.0 mm |
Copper busbar (width x thickness) [mm] >Bolt terminal and rear-side connection >Direct on the switch [max.] |
M10 |
Copper busbar (width x thickness) [mm] >Bolt terminal and rear-side connection >Module plate >Single hole [min.] |
25 x 5 mm |
Copper busbar (width x thickness) [mm] >Bolt terminal and rear-side connection >Module plate >Single hole [max.] |
2 x (50 x 10) 2 x (80 x 10) mm |
Copper busbar (width x thickness) [mm] >Bolt terminal and rear-side connection >Module plate >Double hole |
25 x 5 mm |
Copper busbar (width x thickness) [mm] >Bolt terminal and rear-side connection >Connection width extension >Connection width extension [min.] |
2 x (50 x 10) mm |
Copper busbar (width x thickness) [mm] >Bolt terminal and rear-side connection >Connection width extension >Connection width extension [max.] |
2 x (50 x 10) mm |
Control cables |
60 x 10 mm |
Rated operational current for specified heat dissipation [In] |
2 x (80 x 10) mm |
Equipment heat dissipation, current-dependent [Pvid] |
1 x (0.75 - 2.5) 2 x (0.75 - 1.5) mm2
|
Operating ambient temperature min. |
630 A |
Operating ambient temperature max. |
49 W |
10.2 Strength of materials and parts >10.2.2 Corrosion resistance |
-25 °C |
10.2 Strength of materials and parts >10.2.3.1 Verification of thermal stability of enclosures |
+70 °C |
10.2 Strength of materials and parts >10.2.3.2 Verification of resistance of insulating materials to normal heat |
Meets the product standard´s requirements. |
10.2 Strength of materials and parts >10.2.3.3 Verification of resistance of insulating materials to abnormal heat and fire due to internal electric effects |
Meets the product standard´s requirements. |
10.2 Strength of materials and parts >10.2.4 Resistance to ultra-violet (UV) radiation |
Meets the product standard´s requirements. |
10.2 Strength of materials and parts >10.2.5 Lifting |
Meets the product standard´s requirements. |
10.2 Strength of materials and parts >10.2.6 Mechanical impact |
Meets the product standard´s requirements. |
10.2 Strength of materials and parts >10.2.7 Inscriptions |
Does not apply, since the entire switchgear needs to be evaluated. |
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 |
Meets the product standard´s requirements. |
10.7 Internal electrical circuits and connections |
Does not apply, since the entire switchgear needs to be evaluated. |
10.8 Connections for external conductors |
Does not apply, since the entire switchgear needs to be evaluated. |
10.9 Insulation properties >10.9.2 Power-frequency electric strength |
Is the panel builder´s responsibility. |
10.9 Insulation properties >10.9.3 Impulse withstand voltage |
Is the panel builder´s responsibility. |
10.9 Insulation properties >10.9.4 Testing of enclosures made of insulating material |
Is the panel builder´s responsibility. |
10.10 Temperature rise |
Is the panel builder´s responsibility. |
10.11 Short-circuit rating |
Is the panel builder´s responsibility. |
10.12 Electromagnetic compatibility |
The panel builder is responsible for the temperature rise calculation. Eaton will provide heat dissipation data for the devices. |
10.13 Mechanical function |
Is the panel builder´s responsibility. The specifications for the switchgear must be observed. |
Rated permanent current Iu |
Is the panel builder´s responsibility. The specifications for the switchgear must be observed. |
Rated voltage |
The device meets the requirements, provided the information in the instruction leaflet (IL) is observed. |
Rated short-circuit breaking capacity lcu at 400 V, 50 Hz |
630 A |
Overload release current setting |
1000 - 1000 V |
Adjustment range short-term delayed short-circuit release |
85 kA |
Adjustment range undelayed short-circuit release |
315 - 630 A |
Integrated earth fault protection |
630 - 6300 A |
Type of electrical connection of main circuit |
1260 - 7560 A |
Device construction |
No |
Suitable for DIN rail (top hat rail) mounting |
Screw connection |
DIN rail (top hat rail) mounting optional |
Built-in device fixed built-in technique |
Number of auxiliary contacts as normally closed contact |
No |
Number of auxiliary contacts as normally open contact |
No |
Number of auxiliary contacts as change-over contact |
0 |
With switched-off indicator |
0 |
With under voltage release |
0 |
Number of poles |
No |
Position of connection for main current circuit |
No |
Type of control element |
3 |
Complete device with protection unit |
Front side |
Motor drive integrated |
Rocker lever |
Motor drive optional |
Yes |
Degree of protection (IP) |
No |
Characteristic curve |
Yes |
Characteristic curve |
IP20 |