NDM5-1600H Molded Case Circuit Breaker
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The NDM5-1600 series of moulded case circuit breakers (referred to as circuit breakers) have a rated insulation voltage of 1000V and apply to circuits with the AC 50Hz/60Hz, the rated working voltageAC380/400/415V、AC500V、AC660/690V、AC800V,Vand rated working current (800A to 1250A). The circuit breakers are used for distributing power while protect the overload, short circuit and under-voltage (with a under-voltage release) of lines and power units as well as the infrequent starting, braking, overload and short circuit of motors.
Each voltage level and short-circuit section capacity of the circuit breaker can be connected with the lower incoming line.(Except AC800V )
Technical Parameters
Modle | NDM5-1600 | ||||
Frame current Inm(A) | 1600 | ||||
Rated voltage Ue(V) | AC380/400/415、500、660/690、800 | ||||
Rated current In(A) | 800、1000、1250 | ||||
Rated insulation voltage Ui V) | 1000 | ||||
Power frequency withstand voltage(V) | 3500 | ||||
Rated impulse withstand voltage Uimp(kV) | 12 | ||||
Number of poles | 3 | 3、4 | 3 | ||
Interrupting level code | L | M | H | ||
Rated limit short-circuit breaking capacity Icu (kA) | AC380/400/415V | 70 | 100 | 100 | |
AC500V | 50 | 70 | 85 | ||
AC660/690V | 20 | 35 | 50 | ||
AC800V | / | / | 30 | ||
Rated operating short-circuit breaking capacity Ies (kA) | AC380/400/415V | 70 | 100 | 100 | |
AC500V | 50 | 70 | 70 | ||
AC660/690V | 20 | 35 | 42 | ||
AC800V | / | / | 20 | ||
Usage category | A | ||||
Operational performance (times) | Mechanical life | Maintainable free life | 10000(3P)/6000(4P) | ||
Maintainable life | 20000(3P)/12000(4P) | ||||
Electrical life | AC415V | 3000 | |||
AC500V | 1500 | ||||
AC690V | 1000 | ||||
AC800V | 500 | ||||
Boundary | L(mm) | 268 |
![](http://www.sovinelec.com/wp-content/uploads/2023/11/IMG_20231110_093206-1024x1024.png)
![](http://www.sovinelec.com/wp-content/uploads/2023/11/IMG_20231110_0931531-1024x773.jpg)
![](http://www.sovinelec.com/wp-content/uploads/2023/11/IMG_20231110_092149-1024x1024.png)
![](http://www.sovinelec.com/wp-content/uploads/2023/11/IMG_20231110_1007232-1024x747.jpg)
Normal Working Environment of Circuit Breaker
1) The altitude of the installation site doesn’t exceed 2,500m. See the “High-altitude DeratingFactor Table of Circuit Breaker” for the derating factor at the altitude;
2) The ambient temperature is -35℃ ~ + 70℃; the average within 24 h shall not be more than+35℃. If the ambient temperature is higher than +40℃, the user needs to reduce the capacity.See the “Derating Factor Table of Temperature Change for the Circuit Breaker” for the derating factor;
3) Its relative humidity at an ambient temperature of +40℃ should not exceed 50%. A higherrelative humidity is allowed at a lower temperature. For example, the relative humidity at20℃ can reach 90%; for frost due to temperature change, the corresponding measuresshould be taken;
4) The product can withstand the effects of wet air, salt mist, oil mist and mould;
5) The installation category of the circuit breaker connected to the main loop is: Category Ⅲ (power distribution and control level), The installation category of the circuit breaker notconnected to the main loop is: Category Ⅱ (load level);
6) The pollution level is Level 3;
7) Degree of protection: IP 20;
8) The product should be installed in places that are free from explosive media, media corrosiveto metal, insulation damaging gas, and conductive dust, which should be also avoided fromsnow and rain;
9) In case of stricter user conditions than the above description, negotiate with the manufacturer.
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