NZMH1-M50-SVE
115791 NZMH1-M50-SVE
115791

Circuit-breaker, 3p, 50A, plug-in module
Series NZM..-M circuit-breakers cover all application cases with just four compact sizes and are suitable for the IEC market. Modular function groups always make mounting flexible. With thermomagnetic releases for motor protection. Notes: With phase-failure sensitivity, tripping class 10A, IEC/EN 60947-4-1, IEC/EN 60947-2 circuit-breakers fulfill all requirements of the switching category AC-3.

Product range	Circuit-breaker
Protective function	Motor protection
Standard/Approval
Installation type	IEC
Release system	Plug-in units
Construction size	Thermomagnetic release
Description	NZM1
Number of poles	With phase-failure sensitivity Tripping class 10 A IEC/EN 60947-4-1, IEC/EN 60947-2 The circuit-breaker fulfills all requirements for AC-3 switching category.
Standard equipment	3 pole
400/415 V 50 Hz [Icu ]	Box terminal
Rated current = rated uninterrupted current [In = Iu]	100 kA
Overload trip [Ir ] 40 - 50 A Short-circuit releases [Irm ] >Non-delayed [Ii = In x …]	50 A
380 V 400 V [P]	40 - 50 A
400 V [P]	8 - 14
400 V [Ie ]	22 kW
Standards	22 kW
Protection against direct contact	41 A
Climatic proofing	IEC/EN 60947
Ambient temperature >Ambient temperature, storage	Finger and back of hand proof to VDE 0106 Part 100
Ambient temperature >Operation	Damp heat, constant, to IEC 60068-2-78 Damp heat, cyclic, to IEC 60068-2-30
Mechanical shock resistance (10 ms half-sinusoidal shock) according to IEC 60068-2-27	- 40 - + 70 °C
Safe isolation to EN 61140 >Between auxiliary contacts and main contacts	-25 - +70 °C
Safe isolation to EN 61140 >between the auxiliary contacts	20 (half-sinusoidal shock 20 ms) g
Mounting position	500 V AC
Direction of incoming supply	300 V AC
Degree of protection >Device	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
Degree of protection >Enclosures	as required
Degree of protection >Terminations	In the operating controls area: IP20 (basic degree of protection)
Other technical data (sheet catalogue)	With insulating surround: IP40 With door coupling rotary handle: IP66
Rated current = rated uninterrupted current [In = Iu]	Tunnel terminal: IP10 Phase isolator and strip terminal: IP00
Rated surge voltage invariability [Uimp ] >Main contacts	Temperature dependency, Derating
Rated surge voltage invariability [Uimp ] >Auxiliary contacts	50 A
Rated operational voltage [Ue]	6000 V
Overvoltage category/pollution degree	6000 V
Rated insulation voltage [Ui ]	690 V AC
Use in unearthed supply systems	III/3
Rated short-circuit making capacity [Icm ] >240 V [Icm ]	690 V
Rated short-circuit making capacity [Icm ] >400/415 V [Icm ]	≦ 690 V
Rated short-circuit making capacity [Icm ] >440 V 50/60 Hz [Icm ]	220 kA
Rated short-circuit making capacity [Icm ] >525 V 50/60 Hz [Icm ]	220 kA
Rated short-circuit making capacity [Icm ] >690 V 50/60 H [Ic]	74 kA
Rated short-circuit breaking capacity Icn [Icn ] >Icu to IEC/EN 60947 test cycle O-t-CO [Icu] >240 V 50/60 Hz [Icu ]	40 kA
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 ]	17 kA
Rated short-circuit breaking capacity Icn [Icn ] >Icu to IEC/EN 60947 test cycle O-t-CO [Icu] >440 V 50/60 Hz [Icu ]	100 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 ]	100 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 ]	70 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 ]	20 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 ]	10 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 ]	100 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 ]	10 kA
Utilization category to IEC/EN 60947-2	7.5 kA
Lifespan, mechanical(of which max. 50 % trip by shunt/undervoltage release) [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-1 >400 V 50/60 Hz [Operations]	A
Lifespan, electrical >AC-1 >415 V 50/60 Hz [Operations]	20000
Lifespan, electrical >AC-1 >690 V 50/60 Hz [Operations]	10000
Lifespan, electrical >AC--3 >400 V 50/60 Hz [Operations]	10000
Lifespan, electrical >AC--3 >415 V 50/60 Hz [Operations]	7500
Lifespan, electrical >AC--3 >690 V 50/60 Hz [Operations]	7500
Lifespan, electrical >Max. operating frequency	7500
Total break time at short-circuit	5000
Standard equipment	120 Ops/h
Accessories required	< 10 ms
Optional accessories	Box terminal
Round copper conductor >Box terminal >Solid	NZM1-XSVS
Round copper conductor >Box terminal >Stranded	Screw connection Tunnel terminal connection on rear
Round copper conductor >Box terminal	1 x (10 - 16) 2 x (6 - 16) mm2
Round copper conductor >Tunnel terminal >Solid	1 x (10 - 70) 3) 2 x (6-25) mm2
Round copper conductor >Tunnel terminal >Stranded >1-hole	3) Up to 95 mm² can be connected depending on the cable manufacturer.
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 - 95) mm2
Round copper conductor >Bolt terminal and rear-side connection >Direct on the switch	1 x (10 - 16) 2 x (6 - 16) mm2
Al circular conductor >Tunnel terminal >Solid	1 x (10 - 70) 3) 2 x 25 mm2
Al circular conductor >Tunnel terminal >Stranded >Stranded	3) Up to 95 mm² can be connected depending on the cable manufacturer.
Al circular conductor >Bolt terminal and rear-side connection >Direct on the switch >Solid	1 x 16 mm2
Al circular conductor >Bolt terminal and rear-side connection >Direct on the switch >Stranded	1 x (25 - 95) mm2
Cu strip (number of segments x width x segment thickness) >Box terminal [min.]	1 x (10 - 16) 2 x (10 - 16) mm2
Cu strip (number of segments x width x segment thickness) >Box terminal [max.]	1 x (25 - 35) 2 x (25 - 35) mm2
Copper busbar (width x thickness) [mm] >Bolt terminal and rear-side connection >Screw connection	2 x 9 x 0.8 mm
Copper busbar (width x thickness) [mm] >Bolt terminal and rear-side connection >Direct on the switch [min.]	9 x 9 x 0.8 mm
Copper busbar (width x thickness) [mm] >Bolt terminal and rear-side connection >Direct on the switch [max.]	M6
Control cables	12 x 5 mm
Rated operational current for specified heat dissipation [In]	16 x 5 mm
Equipment heat dissipation, current-dependent [Pvid]	1 x (0.75 - 2.5) 2 x (0.75 - 1.5) mm2
Operating ambient temperature min.	50 A
Operating ambient temperature max.	14.1 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.
Overload release current setting	Is the panel builder´s responsibility. The specifications for the switchgear must be observed.
Adjustment range undelayed short-circuit release	The device meets the requirements, provided the information in the instruction leaflet (IL) is observed.
With thermal protection	40 - 50 A
Phase failure sensitive	400 - 700 A
Switch off technique	Yes
Rated operating voltage	Yes
Rated permanent current Iu	Thermomagnetic
Rated operation power at AC-3, 230 V	690 - 690 V
Rated operation power at AC-3, 400 V	50 A
Type of electrical connection of main circuit	15 kW
Type of control element	22 kW
Device construction	Other
With integrated auxiliary switch	Rocker lever
With integrated under voltage release	Built-in device plug-in technique
Number of poles	No
Rated short-circuit breaking capacity lcu at 400 V, AC	No
Degree of protection (IP)	3
Height	100 kA
Width	IP20
Depth	201 mm
Characteristic curve	95 mm
Characteristic curve	90 mm

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.