NZMH2-S50-SVE
113341 NZMH2-S50-SVE
113341

Circuit-breaker, 3p, 50A, plug-in module
Series NZM..-S 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 magnetic short-circuit release in connection with overload relay. With short-circuit release without overload trip. Notes: circuit-breakers fulfill all requirements of the switching category AC-3.

Product range	Circuit-breaker
Protective function	Short-circuit protection
Standard/Approval	IEC
Installation type	Plug-in units
Release system	Thermomagnetic release
Construction size	NZM2
Description	Motor protection in conjunction with overload relay With short-circuit release Without overload release Ir IEC/EN 60947-4-1, IEC/EN 60947-2 The circuit-breaker fulfills all requirements for AC-3 switching category.
Number of poles	3 pole
Standard equipment	Screw connection
Rated current = rated uninterrupted current [In = Iu]	50 A
400/415 V 50 Hz [Icu ]
Short-circuit releases [Irm ] >Non-delayed [Ii = In x …]	150 kA
380 V 400 V [P]
400 V [Ie ]	8 - 14
Standards
Protection against direct contact	22 kW
Climatic proofing
Ambient temperature >Ambient temperature, storage	41 A
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	2.345 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	50 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 ]	105 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 ]	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 ]	50 kA
Rated short-time withstand current >t = 0.3 s [Icw ]	20 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]	37.5 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 >AC--3 >400 V 50/60 Hz [Operations]	1.9 kA
Lifespan, electrical >AC--3 >415 V 50/60 Hz [Operations]	1.9 kA
Lifespan, electrical >AC--3 >690 V 50/60 Hz [Operations]	A
Lifespan, electrical >Max. operating frequency	20000
Total break time at short-circuit	10000
Standard equipment	10000
Accessories required	7500
Optional accessories	6500
Round copper conductor >Box terminal >Solid	6500
Round copper conductor >Box terminal >Stranded	5000
Round copper conductor >Tunnel terminal >Solid	120 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
Al circular conductor >Tunnel terminal >Solid	NZM2-XSVS
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	50 A
10.2 Strength of materials and parts >10.2.6 Mechanical impact	17.03 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.
Overload release current setting	Does not apply, since the entire switchgear needs to be evaluated.
Adjustment range undelayed short-circuit release	Is the panel builder´s responsibility.
With thermal protection	Is the panel builder´s responsibility.
Phase failure sensitive	Is the panel builder´s responsibility.
Switch off technique	Is the panel builder´s responsibility.
Rated operating voltage	Is the panel builder´s responsibility.
Rated permanent current Iu	The panel builder is responsible for the temperature rise calculation. Eaton will provide heat dissipation data for the devices.
Rated operation power at AC-3, 230 V	Is the panel builder´s responsibility. The specifications for the switchgear must be observed.
Rated operation power at AC-3, 400 V	Is the panel builder´s responsibility. The specifications for the switchgear must be observed.
Type of electrical connection of main circuit	The device meets the requirements, provided the information in the instruction leaflet (IL) is observed.
Type of control element
Device construction
With integrated auxiliary switch	0 - 0 A
With integrated under voltage release	8 - 14 A
Number of poles	No
Rated short-circuit breaking capacity lcu at 400 V, AC	No
Degree of protection (IP)	Magnetic
Height	690 - 690 V
Width	50 A
Depth	15 kW
Characteristic curve	22 kW
Characteristic curve	Screw connection
Characteristic curve	Rocker lever
Characteristic curve	Built-in device plug-in technique

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