NZMH3-4-A320/200-AVE
113579 NZMH3-4-A320/200-AVE
113579

Circuit-breaker, 4p, 320A, 200A in 4th pole, withdrawable unit
Circuit-breaker NZM3, 4 pole, Switching capacity 400/415 V 50 Hz( Icu ): 150 kA, Rated current = rated uninterrupted current Rated current = rated uninterrupted current( In = Iu ): 320 A, Installation type: Withdrawable, Screw connection, Standard/Approval: IEC, Protective function: System and cable protection

Product range	Circuit-breaker
Protective function	System and cable protection
Standard/Approval	IEC
Installation type	Withdrawable
Release system	Thermomagnetic release
Construction size	NZM3
Description	Set value in neutral conductor is synchronous with set value Ir of main pole.
Number of poles	4 pole
Standard equipment	Screw connection
400/415 V 50 Hz [Icu ]
Rated current = rated uninterrupted current [In = Iu]	150 kA
Neutral conductor [% of phase conductor]
Reduced neutral conductor protection	320 A
Neutral conductor protection	60 %
Overload trip [Ir ] 250 - 320 A Overload trip >Main pole [Ir ]	200 A
Short-circuit releases [Irm ] >Non-delayed [Ii = In x …]	Reduced neutral conductor protection
Standards
Protection against direct contact	250 - 320 A
Climatic proofing	160 - 200 A
Ambient temperature >Ambient temperature, storage	6 - 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	8.4 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	Temperature dependency, Derating
Rated insulation voltage [Ui ]
Use in unearthed supply systems	320 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]	1000 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 ]	330 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 ]	330 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 ]	286 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 ]	143 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 ]	74 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 ]	150 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 ]	150 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]	130 kA
Rated short-circuit breaking capacity Icn [Icn ]	65 kA
Rated short-time withstand current >t = 0.3 s [Icw ]	35 kA
Rated short-time withstand current >t = 1 s [Icw ]	150 kA
Utilization category to IEC/EN 60947-2	150 kA
Lifespan, mechanical(of which max. 50 % trip by shunt/undervoltage release) [Operations]	130 kA
Lifespan, electrical >AC-1 >400 V 50/60 Hz [Operations]	33 kA
Lifespan, electrical >AC-1 >415 V 50/60 Hz [Operations]	9 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 >AC--3 >400 V 50/60 Hz [Operations]	3.3 kA
Lifespan, electrical >AC--3 >415 V 50/60 Hz [Operations]	3.3 kA
Lifespan, electrical >AC--3 >690 V 50/60 Hz [Operations]	A
Lifespan, electrical >Max. operating frequency	15000
Total break time at short-circuit	5000
Standard equipment	5000
Accessories required	3000
Optional accessories	2000
Round copper conductor >Box terminal >Solid	2000
Round copper conductor >Box terminal >Stranded	2000
Round copper conductor >Tunnel terminal >Solid	60 Ops/h
Round copper conductor >Tunnel terminal >Stranded >1-hole	< 10 ms
Round copper conductor >Bolt terminal and rear-side connection >Direct on the switch >Solid
Round copper conductor >Bolt terminal and rear-side connection >Direct on the switch >Stranded	Screw connection
Round copper conductor >Bolt terminal and rear-side connection >Connection width extension >Connection width extension	NZM3-4-XAVS
Al circular conductor >Tunnel terminal >Solid	Box terminal Tunnel terminal connection on rear
Al circular conductor >Tunnel terminal >Stranded >Stranded	2 x 16 mm2
Al circular conductor >Tunnel terminal >Stranded >Double hole	1 x (35 - 240) 2 x (25-120) mm2
Al circular conductor >Tunnel terminal >Stranded	1 x 16 mm2
Cu strip (number of segments x width x segment thickness) >Box terminal [min.]	1 x (16 - 185) mm2
Cu strip (number of segments x width x segment thickness) >Box terminal [max.]	1 x 16 2 x 16 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 (25 - 240) 2 x (25 - 240) mm2
Cu strip (number of segments x width x segment thickness) >Bolt terminal and rear-side connection >Flat copper strip, with holes [max.]	2 x 300 mm2
Cu strip (number of segments x width x segment thickness) >Bolt terminal and rear-side connection >Connection width extension	1 x 16 mm2
Copper busbar (width x thickness) [mm] >Bolt terminal and rear-side connection >Screw connection	1 x (25 - 185) 2) mm2
Copper busbar (width x thickness) [mm] >Bolt terminal and rear-side connection >Direct on the switch [min.]	1 x (50 - 240) 2 x (50 - 240) mm2
Copper busbar (width x thickness) [mm] >Bolt terminal and rear-side connection >Direct on the switch [max.]	2) Up to 240 mm² can be connected depending on the cable manufacturer.
Copper busbar (width x thickness) [mm] >Bolt terminal and rear-side connection >Connection width extension >Connection width extension [max.]	6 x 16 x 0.8 mm
Control cables	10 x 24 x 1.0 + 5 x 24 x 1.0 (2 x) 8 x 24 x 1.0 mm
Rated operational current for specified heat dissipation [In]	6 x 16 x 0.8 mm
Equipment heat dissipation, current-dependent [Pvid]	10 x 32 x 1.0 + 5 x 32 x 1.0 mm
Operating ambient temperature min.	(2 x) 10 x 50 x 1.0 mm
Operating ambient temperature max.	M10
10.2 Strength of materials and parts >10.2.2 Corrosion resistance	20 x 5 mm
10.2 Strength of materials and parts >10.2.3.1 Verification of thermal stability of enclosures	30 x 10 + 30 x 5 mm
10.2 Strength of materials and parts >10.2.3.2 Verification of resistance of insulating materials to normal heat	2 x (10 x 50) 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	320 A
10.2 Strength of materials and parts >10.2.6 Mechanical impact	94 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	320 A
Number of auxiliary contacts as change-over contact	690 - 690 V
With switched-off indicator	150 kA
With under voltage release	250 - 320 A
Number of poles	0 - 0 A
Position of connection for main current circuit	6 - 10 A
Type of control element	No
Complete device with protection unit	Screw connection
Motor drive integrated	Built-in device slide-in technique (withdrawable)
Motor drive optional	No
Degree of protection (IP)	No
Characteristic curve	0
Characteristic curve	0
Characteristic curve	0

As Mnelko, we are a reliable partner in industrial automation solutions, offering high-quality and innovative products with a wide product range to meet all the needs of your business. Our product portfolio consists of solutions designed based on the principles of high performance, durability, and efficiency to support modern industrial processes.
All of our products ensure maximum reliability even in challenging working conditions and help your business operations run smoothly. The products we offer in industrial automation, energy management, cabling solutions, and many other areas adapt flexibly to the needs of different sectors.
Additionally, our products are manufactured using only high-quality materials and comply with international standards. Through the solutions we provide, we enable our customers to increase operational efficiency and optimize costs. Our company closely follows technological advancements and continuously offers innovative products to help our customers gain a competitive advantage.
On each of our product pages, you can find comprehensive information about technical details, areas of use, and product features. You can explore all the products you need to strengthen your industrial processes on our website and enjoy a seamless purchasing experience.