NZMH2-VE250-S1
100779 NZMH2-VE250-S1
100779

Circuit-breaker, 3p, 250A 1000V
Circuit-breaker NZM2, 3 pole, Switching capacity 1000 V 50/60 Hz( Ics): 10 kA, Rated current = rated uninterrupted current( In = Iu): 250 A, Installation type: Fixed, Screw connection, Standard/Approval: IEC, Protective function: Systems, cable, selectivity and generator protection

Product range	Circuit-breaker
Protective function	Systems, cable, selectivity and generator protection
Standard/Approval	IEC
Installation type	Fixed
Release system	Electronic release
Construction size	NZM2
Description	R.m.s. value measurement and “thermal memory” adjustable time delay setting to overcome current peaks tr: 2 – 20 s 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: fixed OFF NZM...S1 terminal type: NZM...XKSA cover required
Number of poles	3 pole
Standard equipment	Screw connection
Rated current = rated uninterrupted current [In = Iu]	250 A
1000 V 50/60 Hz [Icu]	10 kA
Overload trip [Ir ] 125 - 250 A Short-circuit releases [Irm ] >Non-delayed [Ii = In x …]	125 - 250 A
Short-circuit releases [Irm ] >Delayed [Isd = Ir x …]	3000 A fixed
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	250 A
Rated insulation voltage [Ui ]	III/3
Utilization category	1000 V
Ambient temperature >Ambient temperature, storage	A
Ambient temperature >Operation	- 40 - + 70 °C
240 V 50/60 Hz [Icm ]	-25 - +70 °C
400/415 V 50/60 Hz [Icm ]	330 kA
440 V 50/60 Hz [Icm ]	330 kA
525 V 50/60 Hz [Icm ]	286 kA
690 V 50/60 H [Ic]	105 kA
1000 V 50/60 Hz [Icm]	40 kA
Icu to IEC/EN 60947 test cycle O-t-CO [Icu] >240 V 50/60 Hz [Icu ]	17 kA
Icu to IEC/EN 60947 test cycle O-t-CO [Icu] >400/415 V 50 Hz [Icu ]	150 kA
Icu to IEC/EN 60947 test cycle O-t-CO [Icu] >440 V 50/60 Hz [Icu ]	150 kA
Icu to IEC/EN 60947 test cycle O-t-CO [Icu] >525 V 50/60 Hz [Icu ]	130 kA
Icu to IEC/EN 60947 test cycle O-t-CO [Icu] >690 V 50/60 Hz [Icu ]	50 kA
Icu to IEC/EN 60947 test cycle O-t-CO [Icu] >1000 V 50/60 Hz [Icu]	20 kA
Ics to IEC/EN 60947 test cycle O-t-CO-t-CO [Ics] >230 V 50/60 Hz [Ics ]	10 kA
Ics to IEC/EN 60947 test cycle O-t-CO-t-CO [Ics] >400/415 V 50/60 Hz [Ics ]	150 kA
Ics to IEC/EN 60947 test cycle O-t-CO-t-CO [Ics] >440 V 50/60 Hz [Ics ]	150 kA
Ics to IEC/EN 60947 test cycle O-t-CO-t-CO [Ics] >525 V 50/60 Hz [Ics ]	130 kA
Ics to IEC/EN 60947 test cycle O-t-CO-t-CO [Ics] >690 V 50/60 Hz [Ics]	37.5 kA
Ics to IEC/EN 60947 test cycle O-t-CO-t-CO [Ics] >1000 V AC [Ics]	5 kA
t = 0.3 s [Icw ]	3 kA
t = 1 s [Icw ]	1.9 kA
Lifespan, mechanical [Operations]	1.9 kA
Max. operating frequency	20000
1000 V 50/60 Hz [Operations]	120 Ops/h
Standard equipment	Lifespan, mechanical: of which max. 50 % trip by shunt/undervoltage release
Round copper conductor >Box terminal >Solid	3000
Round copper conductor >Box terminal >Stranded	Screw connection
Round copper conductor >Tunnel terminal >Solid	1 x (10 - 16) 2 x (6-16) mm2
Round copper conductor >Tunnel terminal >Stranded >Stranded	1 x (25 - 185) 2 x (25-70) mm2
Round copper conductor >Bolt terminal and rear-side connection >Direct on the switch >Solid	1 x 16 mm2
Round copper conductor >Bolt terminal and rear-side connection >Direct on the switch >Stranded	1 x (25 - 185) mm2
Al conductors, Cu cable >Tunnel terminal >Solid	1 x (10 - 16) 2 x (10 - 16) mm2
Al conductors, Cu cable >Tunnel terminal >Stranded >Stranded	1 x (25 - 50) 2 x (25 - 50) mm2
Al conductors, Cu cable >Tunnel terminal >Stranded	1 x 16 mm2
Cu strip (number of segments x width x segment thickness) >Box terminal [min.]	1 x (25 - 185) 2) mm2
Cu strip (number of segments x width x segment thickness) >Box terminal [max.]	2) Up to 240 mm² can be connected depending on the cable manufacturer.
Cu strip (number of segments x width x segment thickness) >Bolt terminal and rear-side connection >Flat copper strip, with holes [min.]	2 x 9 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 [max.]	10 x 16 x 0.8 (2x) 8 x 15.5 x 0,8 mm
Copper busbar (width x thickness) [mm] >Bolt terminal and rear-side connection >Screw connection	2 x 16 x 0.8 mm
Copper busbar (width x thickness) [mm] >Bolt terminal and rear-side connection >Direct on the switch [min.]	10 x 24 x 0.8 mm
Copper busbar (width x thickness) [mm] >Bolt terminal and rear-side connection >Direct on the switch [max.]	M8
Control cables	16 x 5 mm
Rated operational current for specified heat dissipation [In]	24 x 8 mm
Equipment heat dissipation, current-dependent [Pvid]	1 x (0.75 - 2.5) 2 x (0.75 - 1.5) mm2
Operating ambient temperature min.	250 A
Operating ambient temperature max.	51.56 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	250 A
Overload release current setting	1000 - 1000 V
Adjustment range short-term delayed short-circuit release	150 kA
Adjustment range undelayed short-circuit release	125 - 250 A
Integrated earth fault protection	250 - 2500 A
Type of electrical connection of main circuit	3000 - 3000 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	Yes
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
Characteristic curve

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