NZMN2-4-VX160
191643 NZMN2-4-VX160
191643

NZM2 PXR20 circuit breaker, 160A, 4p, screw terminal
The xEffect NZM...-VX circuit breaker range with power expert release (PXR) electronic triggering system covers use cases for full range protection with only four compact sizes and is suitable for the IEC market. Test function and settings via micro USB port directly on the switch. Modular function groups always make mounting flexible and may be supplemented by the comprehensive range of accessories. R.m.s. value measurement and thermal memory.

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	LSI overload protection and delayed and non-delayed short-circuit protective device R.m.s. value measurement and “thermal memory” USB interface for configuration and test function with Power Xpert Protection Manager software Optionally communication-capable with interface module and internal Modbus RTU module or CAM
Number of poles	4 pole
Standard equipment	Screw connection
400/415 V 50 Hz [Icu ]
Rated current = rated uninterrupted current [In = Iu]	50 kA
Neutral conductor [% of phase conductor]
Overload trip [Ir ] 64 - 160 A Short-circuit releases [Irm ] >Non-delayed [Ii = In x …]	160 A
Short-circuit releases [Irm ] >Delayed [Isd = Ir x …]	100 %
Standards
Protection against direct contact	64 - 160 A
Climatic proofing	2 – 18
Ambient temperature >Ambient temperature, storage	2 – 10
Ambient temperature >Operation
Mechanical shock resistance (10 ms half-sinusoidal shock) according to IEC 60068-2-27	IEC/EN 60947
Safe isolation to EN 61140 >Between auxiliary contacts and main contacts	Finger and back of hand proof to VDE 0106 Part 100
Safe isolation to EN 61140 >between the auxiliary contacts	Damp heat, constant, to IEC 60068-2-78 Damp heat, cyclic, to IEC 60068-2-30
Weight	- 40 - + 70 °C
Mounting position	-25 - +70 °C
Direction of incoming supply	20 (half-sinusoidal shock 20 ms) g
Degree of protection >Device	500 V AC
Degree of protection >Enclosures	300 V AC
Degree of protection >Terminations	3.5 kg
Other technical data (sheet catalogue)	Vertical and 90° in all directions   With XFI earth-fault release: - NZM1, N1, NZM2, N2: vertical and 90° in all directions with plug-in unit - NZM1, N1, NZM2, N2: vertical, 90° right/left with withdrawable unit: - NZM3, N3: vertical, 90° right/left - NZM4, N4: vertical with remote operator: - NZM2, N(S)2, NZM3, N(S)3, NZM4, N(S)4: vertical and 90° in all directions
Rated current = rated uninterrupted current [In = Iu]	as required
Rated surge voltage invariability [Uimp ] >Main contacts	In the operating controls area: IP20 (basic degree of protection)
Rated surge voltage invariability [Uimp ] >Auxiliary contacts	With insulating surround: IP40 With door coupling rotary handle: IP66
Rated operational voltage [Ue]	Tunnel terminal: IP10 Phase isolator and strip terminal: IP00
Overvoltage category/pollution degree	Weight Temperature dependency, Derating Effective power loss
Rated insulation voltage [Ui ]
Use in unearthed supply systems	160 A
Rated short-circuit making capacity [Icm ] >240 V [Icm ]	8000 V
Rated short-circuit making capacity [Icm ] >400/415 V [Icm ]	6000 V
Rated short-circuit making capacity [Icm ] >440 V 50/60 Hz [Icm ]	690 V AC
Rated short-circuit making capacity [Icm ] >525 V 50/60 Hz [Icm ]	III/3
Rated short-circuit making capacity [Icm ] >690 V 50/60 H [Ic]	690 V
Rated short-circuit breaking capacity Icn [Icn ] >Icu to IEC/EN 60947 test cycle O-t-CO [Icu] >240 V 50/60 Hz [Icu ]	≦ 690 V
Rated short-circuit breaking capacity Icn [Icn ] >Icu to IEC/EN 60947 test cycle O-t-CO [Icu] >400/415 V 50/60 Hz [Icu ]
Rated short-circuit breaking capacity Icn [Icn ] >Icu to IEC/EN 60947 test cycle O-t-CO [Icu] >440 V 50/60 Hz [Icu ]	187 kA
Rated short-circuit breaking capacity Icn [Icn ] >Icu to IEC/EN 60947 test cycle O-t-CO [Icu] >525 V 50/60 Hz [Icu ]	110 kA
Rated short-circuit breaking capacity Icn [Icn ] >Icu to IEC/EN 60947 test cycle O-t-CO [Icu] >690 V 50/60 Hz [Icu ]	77 kA
Rated short-circuit breaking capacity Icn [Icn ] >Ics to IEC/EN 60947 test cycle O-t-CO-t-CO [Ics] >240 V 50/60 Hz [Ics ]	55 kA
Rated short-circuit breaking capacity Icn [Icn ] >Ics to IEC/EN 60947 test cycle O-t-CO-t-CO [Ics] >400/415 V 50/60 Hz [Ics ]	40 kA
Rated short-circuit breaking capacity Icn [Icn ] >Ics to IEC/EN 60947 test cycle O-t-CO-t-CO [Ics] >440 V 50/60 Hz [Ics ]	85 kA
Rated short-circuit breaking capacity Icn [Icn ] >Ics to IEC/EN 60947 test cycle O-t-CO-t-CO [Ics] >525 V 50/60 Hz [Ics ]	50 kA
Rated short-circuit breaking capacity Icn [Icn ] >Ics to IEC/EN 60947 test cycle O-t-CO-t-CO [Ics] >690 V 50/60 Hz [Ics]	35 kA
Rated short-circuit breaking capacity Icn [Icn ]	25 kA
Rated short-time withstand current >t = 0.3 s [Icw ]	20 kA
Rated short-time withstand current >t = 1 s [Icw ]	85 kA
Utilization category to IEC/EN 60947-2	50 kA
Lifespan, mechanical(of which max. 50 % trip by shunt/undervoltage release) [Operations]	35 kA
Lifespan, electrical >AC-1 >400 V 50/60 Hz [Operations]	25 kA
Lifespan, electrical >AC-1 >415 V 50/60 Hz [Operations]	5 kA
Lifespan, electrical >AC-1 >690 V 50/60 Hz [Operations]	Maximum back-up fuse, if the expected short-circuit currents at the installation location exceed the switching capacity of the circuit-breaker.
Lifespan, electrical >Max. operating frequency	1.9 kA
Total break time at short-circuit	1.9 kA
Standard equipment	A
Optional accessories	20000
Round copper conductor >Box terminal >Solid	10000
Round copper conductor >Box terminal >Stranded	10000
Round copper conductor >Tunnel terminal >Solid	7500
Round copper conductor >Tunnel terminal >Stranded >1-hole	120 Ops/h
Round copper conductor >Bolt terminal and rear-side connection >Direct on the switch >Solid	< 10 ms
Round copper conductor >Bolt terminal and rear-side connection >Direct on the switch >Stranded
Al circular conductor >Tunnel terminal >Solid	Screw connection
Al circular conductor >Tunnel terminal >Stranded >Stranded	Box terminal Tunnel terminal connection on rear
Cu strip (number of segments x width x segment thickness) >Box terminal [min.]	1 x (10 - 16) 2 x (6 - 16) mm2
Cu strip (number of segments x width x segment thickness) >Box terminal [max.]	1 x (25 - 185) 2 x (25 - 70) mm2
Cu strip (number of segments x width x segment thickness) >Bolt terminal and rear-side connection >Flat copper strip, with holes [min.]	1 x 16 mm2
Cu strip (number of segments x width x segment thickness) >Bolt terminal and rear-side connection >Flat copper strip, with holes [max.]	1 x (25 - 185) mm2
Copper busbar (width x thickness) [mm] >Bolt terminal and rear-side connection >Screw connection	1 x (10 - 16) 2 x (6 - 16) mm2
Copper busbar (width x thickness) [mm] >Bolt terminal and rear-side connection >Direct on the switch [min.]	1 x (25 - 185) 2 x (25 - 70) mm2
Copper busbar (width x thickness) [mm] >Bolt terminal and rear-side connection >Direct on the switch [max.]	1 x 16 mm2
Control cables	1 x (25 - 185) mm2
Rated operational current for specified heat dissipation [In]	2 x 9 x 0.8 mm
Equipment heat dissipation, current-dependent [Pvid]	10 x 16 x 0.8 (2x) 8 x 15.5 x 0,8 mm
Operating ambient temperature min.	2 x 16 x 0.8 mm
Operating ambient temperature max.	10 x 24 x 0.8 mm
10.2 Strength of materials and parts >10.2.2 Corrosion resistance	M8
10.2 Strength of materials and parts >10.2.3.1 Verification of thermal stability of enclosures	16 x 5 mm
10.2 Strength of materials and parts >10.2.3.2 Verification of resistance of insulating materials to normal heat	24 x 8 mm
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	1 x (0.75 - 2.5) 2 x (0.75 - 1.5) mm2
10.2 Strength of materials and parts >10.2.4 Resistance to ultra-violet (UV) radiation
10.2 Strength of materials and parts >10.2.5 Lifting	160 A
10.2 Strength of materials and parts >10.2.6 Mechanical impact	21.12 W
10.2 Strength of materials and parts >10.2.7 Inscriptions	-25 °C
10.3 Degree of protection of ASSEMBLIES	+70 °C
10.4 Clearances and creepage distances
10.5 Protection against electric shock	Meets the product standard´s requirements.
10.6 Incorporation of switching devices and components	Meets the product standard´s requirements.
10.7 Internal electrical circuits and connections	Meets the product standard´s requirements.
10.8 Connections for external conductors	Meets the product standard´s requirements.
10.9 Insulation properties >10.9.2 Power-frequency electric strength	Meets the product standard´s requirements.
10.9 Insulation properties >10.9.3 Impulse withstand voltage	Does not apply, since the entire switchgear needs to be evaluated.
10.9 Insulation properties >10.9.4 Testing of enclosures made of insulating material	Does not apply, since the entire switchgear needs to be evaluated.
10.10 Temperature rise	Meets the product standard´s requirements.
10.11 Short-circuit rating	Does not apply, since the entire switchgear needs to be evaluated.
10.12 Electromagnetic compatibility	Meets the product standard´s requirements.
10.13 Mechanical function	Does not apply, since the entire switchgear needs to be evaluated.
Rated permanent current Iu	Does not apply, since the entire switchgear needs to be evaluated.
Rated voltage	Is the panel builder´s responsibility.
Rated short-circuit breaking capacity lcu at 400 V, 50 Hz	Is the panel builder´s responsibility.
Overload release current setting	Is the panel builder´s responsibility.
Adjustment range short-term delayed short-circuit release	Is the panel builder´s responsibility.
Adjustment range undelayed short-circuit release	Is the panel builder´s responsibility.
Integrated earth fault protection	The panel builder is responsible for the temperature rise calculation. Eaton will provide heat dissipation data for the devices.
Type of electrical connection of main circuit	Is the panel builder´s responsibility. The specifications for the switchgear must be observed.
Device construction	Is the panel builder´s responsibility. The specifications for the switchgear must be observed.
Suitable for DIN rail (top hat rail) mounting	The device meets the requirements, provided the information in the instruction leaflet (IL) is observed.
DIN rail (top hat rail) mounting optional
Number of auxiliary contacts as normally closed contact
Number of auxiliary contacts as normally open contact	160 A
Number of auxiliary contacts as change-over contact	690 - 690 V
With switched-off indicator	50 kA
With under voltage release	64 - 160 A
Number of poles	2 - 10 A
Position of connection for main current circuit	2 - 18 A
Type of control element	No
Complete device with protection unit	Screw connection
Motor drive integrated	Built-in device fixed built-in technique
Motor drive optional	No
Degree of protection (IP)	Yes
Characteristic curve	0
Characteristic curve	0

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