NZMB1-S100
265730 NZMB1-S100
265730

Circuit-breaker, 3p, 100A
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	Fixed
Release system	Thermomagnetic release
Construction size	NZM1
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	Box terminal
Rated current = rated uninterrupted current [In = Iu]	100 A
400/415 V 50 Hz [Icu ]	25 kA
Short-circuit releases [Irm ] >Non-delayed [Ii = In x …]	8 - 12.5
380 V 400 V [P]	45 kW
400 V [Ie ]	81 A
Standards	IEC/EN 60947
Protection against direct contact	Finger and back of hand proof to VDE 0106 Part 100
Climatic proofing	Damp heat, constant, to IEC 60068-2-78 Damp heat, cyclic, to IEC 60068-2-30
Ambient temperature >Ambient temperature, storage	- 40 - + 70 °C
Ambient temperature >Operation	-25 - +70 °C
Mechanical shock resistance (10 ms half-sinusoidal shock) according to IEC 60068-2-27	20 (half-sinusoidal shock 20 ms) g
Safe isolation to EN 61140 >Between auxiliary contacts and main contacts	500 V AC
Safe isolation to EN 61140 >between the auxiliary contacts	300 V AC
Mounting position	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
Direction of incoming supply	as required
Degree of protection >Device	In the operating controls area: IP20 (basic degree of protection)
Degree of protection >Enclosures	With insulating surround: IP40 With door coupling rotary handle: IP66
Degree of protection >Terminations	Tunnel terminal: IP10 Phase isolator and strip terminal: IP00
Other technical data (sheet catalogue)	Temperature dependency, Derating
Rated current = rated uninterrupted current [In = Iu]	100 A
Rated surge voltage invariability [Uimp ] >Main contacts	6000 V
Rated surge voltage invariability [Uimp ] >Auxiliary contacts	6000 V
Rated operational voltage [Ue]	440 V AC
Overvoltage category/pollution degree	III/3
Rated insulation voltage [Ui ]	690 V
Use in unearthed supply systems	≦ 440 V
Rated short-circuit making capacity [Icm ] >240 V [Icm ]	63 kA
Rated short-circuit making capacity [Icm ] >400/415 V [Icm ]	53 kA
Rated short-circuit making capacity [Icm ] >440 V 50/60 Hz [Icm ]	53 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 ]	30 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 ]	25 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 ]	25 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 ]	30 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 ]	25 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 ]	18.5 kA
Rated short-circuit breaking capacity Icn [Icn ]	Maximum back-up fuse, if the expected short-circuit currents at the installation location exceed the switching capacity of the circuit-breaker.
Utilization category to IEC/EN 60947-2	A
Lifespan, mechanical(of which max. 50 % trip by shunt/undervoltage release) [Operations]	20000
Lifespan, electrical >AC-1 >400 V 50/60 Hz [Operations]	7500
Lifespan, electrical >AC-1 >415 V 50/60 Hz [Operations]	7500
Lifespan, electrical >Max. operating frequency	120 Ops/h
Total break time at short-circuit	< 10 ms
Standard equipment	Box terminal
Optional accessories	Screw connection Tunnel terminal connection on rear
Round copper conductor >Box terminal >Solid	1 x (10 - 16) 2 x (6 - 16) mm2
Round copper conductor >Box terminal >Stranded	1 x (10 - 70) 3) 2 x (6-25) mm2
Round copper conductor >Box terminal	3) Up to 95 mm² can be connected depending on the cable manufacturer.
Round copper conductor >Tunnel terminal >Solid	1 x 16 mm2
Round copper conductor >Tunnel terminal >Stranded >1-hole	1 x (25 - 95) mm2
Round copper conductor >Bolt terminal and rear-side connection >Direct on the switch >Solid	1 x (10 - 16) 2 x (6 - 16) mm2
Round copper conductor >Bolt terminal and rear-side connection >Direct on the switch >Stranded	1 x (10 - 70) 3) 2 x 25 mm2
Round copper conductor >Bolt terminal and rear-side connection >Direct on the switch	3) Up to 95 mm² can be connected depending on the cable manufacturer.
Al circular conductor >Tunnel terminal >Solid	1 x 16 mm2
Al circular conductor >Tunnel terminal >Stranded >Stranded	1 x (25 - 95) mm2
Al circular conductor >Bolt terminal and rear-side connection >Direct on the switch >Solid	1 x (10 - 16) 2 x (10 - 16) mm2
Al circular conductor >Bolt terminal and rear-side connection >Direct on the switch >Stranded	1 x (25 - 35) 2 x (25 - 35) mm2
Cu strip (number of segments x width x segment thickness) >Box terminal [min.]	2 x 9 x 0.8 mm
Cu strip (number of segments x width x segment thickness) >Box terminal [max.]	9 x 9 x 0.8 mm
Copper busbar (width x thickness) [mm] >Bolt terminal and rear-side connection >Screw connection	M6
Copper busbar (width x thickness) [mm] >Bolt terminal and rear-side connection >Direct on the switch [min.]	12 x 5 mm
Copper busbar (width x thickness) [mm] >Bolt terminal and rear-side connection >Direct on the switch [max.]	16 x 5 mm
Control cables	1 x (0.75 - 2.5) 2 x (0.75 - 1.5) mm2
Rated operational current for specified heat dissipation [In]	100 A
Equipment heat dissipation, current-dependent [Pvid]	21.9 W
Operating ambient temperature min.	-25 °C
Operating ambient temperature max.	+70 °C
10.2 Strength of materials and parts >10.2.2 Corrosion resistance	Meets the product standard´s requirements.
10.2 Strength of materials and parts >10.2.3.1 Verification of thermal stability of enclosures	Meets the product standard´s requirements.
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	Does not apply, since the entire switchgear needs to be evaluated.
10.2 Strength of materials and parts >10.2.6 Mechanical impact	Does not apply, since the entire switchgear needs to be evaluated.
10.2 Strength of materials and parts >10.2.7 Inscriptions	Meets the product standard´s requirements.
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	Does not apply, since the entire switchgear needs to be evaluated.
10.7 Internal electrical circuits and connections	Is the panel builder´s responsibility.
10.8 Connections for external conductors	Is the panel builder´s responsibility.
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	The panel builder is responsible for the temperature rise calculation. Eaton will provide heat dissipation data for the devices.
10.11 Short-circuit rating	Is the panel builder´s responsibility. The specifications for the switchgear must be observed.
10.12 Electromagnetic compatibility	Is the panel builder´s responsibility. The specifications for the switchgear must be observed.
10.13 Mechanical function	The device meets the requirements, provided the information in the instruction leaflet (IL) is observed.
Overload release current setting	0 - 0 A
Adjustment range undelayed short-circuit release	8 - 14 A
With thermal protection	No
Phase failure sensitive	No
Switch off technique	Magnetic
Rated operating voltage	440 - 440 V
Rated permanent current Iu	100 A
Rated operation power at AC-3, 230 V	30 kW
Rated operation power at AC-3, 400 V	45 kW
Type of electrical connection of main circuit	Other
Type of control element	Rocker lever
Device construction	Built-in device fixed built-in technique
With integrated auxiliary switch	No
With integrated under voltage release	No
Number of poles	3
Rated short-circuit breaking capacity lcu at 400 V, AC	25 kA
Degree of protection (IP)	IP20
Height	145 mm
Width	90 mm
Depth	88 mm
Characteristic curve
Characteristic curve
Characteristic curve

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.