SKU: Eaton-283294
Circuit-breaker, 3p, 25A
Circuit-breaker NZM1, 3 pole, Switching capacity 400/415 V 50 Hz( Icu ): 36 kA, Rated current = rated uninterrupted current Rated current = rated uninterrupted current( In = Iu ): 25 A, Installation type: Fixed, Box terminal, Standard/Approval: IEC, Protective function: System and cable protection
Product range | Circuit-breaker |
Protective function | System and cable protection |
Standard/Approval | IEC |
Installation type | Fixed |
Release system | Thermomagnetic release |
Construction size | NZM1 |
Number of poles | 3 pole |
Standard equipment | Box terminal |
400/415 V 50 Hz [Icu ] | 36 kA |
Rated current = rated uninterrupted current [In = Iu] | 25 A |
Overload trip [Ir
] 20 - 25 A
|
20 - 25 A |
Short-circuit releases [Irm
] >min. |
350 A fixed |
Standards | 350 A |
Protection against direct contact | IEC/EN 60947 |
Climatic proofing | Finger and back of hand proof to VDE 0106 Part 100 |
Ambient temperature >Ambient temperature, storage |
Damp heat, constant, to IEC 60068-2-78 Damp heat, cyclic, to IEC 60068-2-30 |
Ambient temperature >Operation |
- 40 - + 70 °C |
Mechanical shock resistance (10 ms half-sinusoidal shock) according to IEC 60068-2-27 | -25 - +70 °C |
Safe isolation to EN 61140 >Between auxiliary contacts and main contacts |
20 (half-sinusoidal shock 20 ms) g |
Safe isolation to EN 61140 >between the auxiliary contacts |
500 V AC |
Mounting position | 300 V AC |
Direction of incoming supply | |
Degree of protection >Device |
as required |
Degree of protection >Enclosures |
In the operating controls area: IP20 (basic degree of protection) |
Degree of protection >Terminations |
With insulating surround: IP40 With door coupling rotary handle: IP66 |
Other technical data (sheet catalogue) | Tunnel terminal: IP10 Phase isolator and strip terminal: IP00 |
Rated current = rated uninterrupted current [In = Iu] | Temperature dependency, Derating |
Rated surge voltage invariability [Uimp
] >Main contacts |
25 A |
Rated surge voltage invariability [Uimp
] >Auxiliary contacts |
6000 V |
Rated operational voltage [Ue] | 6000 V |
Overvoltage category/pollution degree | 690 V AC |
Rated insulation voltage [Ui ] | III/3 |
Use in unearthed supply systems | 690 V |
Rated short-circuit making capacity [Icm
] >240 V [Icm ] |
≦ 690 V |
Rated short-circuit making capacity [Icm
] >400/415 V [Icm ] |
121 kA |
Rated short-circuit making capacity [Icm
] >440 V 50/60 Hz [Icm ] |
76 kA |
Rated short-circuit making capacity [Icm
] >525 V 50/60 Hz [Icm ] |
63 kA |
Rated short-circuit making capacity [Icm
] >690 V 50/60 H [Ic] |
24 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 ] |
14 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 ] |
55 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 ] |
36 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 ] |
30 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 ] |
12 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 ] |
8 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 ] |
55 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 ] |
36 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 ] |
22.5 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] |
6 kA |
Rated short-circuit breaking capacity Icn [Icn ] | 4 kA |
Utilization category to IEC/EN 60947-2 | Maximum back-up fuse, if the expected short-circuit currents at the installation location exceed the switching capacity of the circuit-breaker. |
Lifespan, mechanical(of which max. 50 % trip by shunt/undervoltage release) [Operations] | A |
Lifespan, electrical >AC-1 >400 V 50/60 Hz [Operations] |
20000 |
Lifespan, electrical >AC-1 >415 V 50/60 Hz [Operations] |
10000 |
Lifespan, electrical >AC-1 >690 V 50/60 Hz [Operations] |
10000 |
Lifespan, electrical >Max. operating frequency |
5000 |
Total break time at short-circuit | 120 Ops/h |
Standard equipment | < 10 ms |
Optional accessories | Box terminal |
Round copper conductor >Box terminal >Solid |
Screw connection Tunnel terminal connection on rear |
Round copper conductor >Box terminal >Stranded |
1 x (10 - 16) 2 x (6 - 16) mm2 |
Round copper conductor >Box terminal |
1 x (10 - 70) 3) 2 x (6-25) mm2 |
Round copper conductor >Tunnel terminal >Solid |
3) Up to 95 mm² can be connected depending on the cable manufacturer. |
Round copper conductor >Tunnel terminal >Stranded >1-hole |
1 x 16 mm2 |
Round copper conductor >Bolt terminal and rear-side connection >Direct on the switch >Solid |
1 x (25 - 95) mm2 |
Round copper conductor >Bolt terminal and rear-side connection >Direct on the switch >Stranded |
1 x (10 - 16) 2 x (6 - 16) mm2 |
Round copper conductor >Bolt terminal and rear-side connection >Direct on the switch |
1 x (10 - 70) 3) 2 x 25 mm2 |
Al circular conductor >Tunnel terminal >Solid |
3) Up to 95 mm² can be connected depending on the cable manufacturer. |
Al circular conductor >Tunnel terminal >Stranded >Stranded |
1 x 16 mm2 |
Al circular conductor >Bolt terminal and rear-side connection >Direct on the switch >Solid |
1 x (25 - 95) mm2 |
Al circular conductor >Bolt terminal and rear-side connection >Direct on the switch >Stranded |
1 x (10 - 16) 2 x (10 - 16) mm2 |
Cu strip (number of segments x width x segment thickness) >Box terminal [min.] |
1 x (25 - 35) 2 x (25 - 35) mm2 |
Cu strip (number of segments x width x segment thickness) >Box terminal [max.] |
2 x 9 x 0.8 mm |
Copper busbar (width x thickness) [mm] >Bolt terminal and rear-side connection >Screw connection |
9 x 9 x 0.8 mm |
Copper busbar (width x thickness) [mm] >Bolt terminal and rear-side connection >Direct on the switch [min.] |
M6 |
Copper busbar (width x thickness) [mm] >Bolt terminal and rear-side connection >Direct on the switch [max.] |
12 x 5 mm |
Control cables | 16 x 5 mm |
Rated operational current for specified heat dissipation [In] | 1 x (0.75 - 2.5) 2 x (0.75 - 1.5) mm2 |
Equipment heat dissipation, current-dependent [Pvid] | 25 A |
Operating ambient temperature min. | 8.78 W |
Operating ambient temperature max. | -25 °C |
10.2 Strength of materials and parts >10.2.2 Corrosion resistance |
+70 °C |
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 |
Meets the product standard´s requirements. |
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 |
Does not apply, since the entire switchgear needs to be evaluated. |
10.3 Degree of protection of ASSEMBLIES | Meets the product standard´s requirements. |
10.4 Clearances and creepage distances | Does not apply, since the entire switchgear needs to be evaluated. |
10.5 Protection against electric shock | Meets the product standard´s requirements. |
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 | Does not apply, since the entire switchgear needs to be evaluated. |
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 | Is the panel builder´s responsibility. |
10.11 Short-circuit rating | The panel builder is responsible for the temperature rise calculation. Eaton will provide heat dissipation data for the devices. |
10.12 Electromagnetic compatibility | Is the panel builder´s responsibility. The specifications for the switchgear must be observed. |
10.13 Mechanical function | Is the panel builder´s responsibility. The specifications for the switchgear must be observed. |
Rated permanent current Iu | The device meets the requirements, provided the information in the instruction leaflet (IL) is observed. |
Rated voltage | 25 A |
Rated short-circuit breaking capacity lcu at 400 V, 50 Hz | 690 - 690 V |
Overload release current setting | 36 kA |
Adjustment range short-term delayed short-circuit release | 20 - 25 A |
Adjustment range undelayed short-circuit release | 0 - 0 A |
Integrated earth fault protection | 350 - 350 A |
Type of electrical connection of main circuit | No |
Device construction | Frame clamp |
Suitable for DIN rail (top hat rail) mounting | Built-in device fixed built-in technique |
DIN rail (top hat rail) mounting optional | No |
Number of auxiliary contacts as normally closed contact | Yes |
Number of auxiliary contacts as normally open contact | 0 |
Number of auxiliary contacts as change-over contact | 0 |
With switched-off indicator | 0 |
With under voltage release | No |
Number of poles | No |
Position of connection for main current circuit | 3 |
Type of control element | Front side |
Complete device with protection unit | Rocker lever |
Motor drive integrated | Yes |
Motor drive optional | No |
Degree of protection (IP) | No |
Characteristic curve | IP20 |
Characteristic curve | |
Characteristic curve |