Function and use
Chint NM5TS series electronic molded case circuit breakers are suitable for AC 50/60Hz, rated voltage AC690V and below, and rated current 16A to 1000A circuits. As a means of making, breaking and carrying rated current, it can reliably protect lines and electrical equipment when they are overloaded, short-circuited or under-voltage. It can also be used as an infrequent starting and overload, short-circuit and under-voltage protection for motors. The product has the characteristics of safety, reliability, flexibility and ease of use, and intelligent IoT, and can be widely used in power distribution application scenarios in the 5G & communications industry.
Detailed description
Advantages/core functions:
01 Excellent performance
Insulation voltage up to AC1000V, more reliable operation in high-altitude environments
Ics=100%lcu, stronger breaking capacity, ensuring the reliability of circuit breaker breaking and the stability of user power consumption
02 Flexible and easy to use
The entire series of products can realize free top/bottom cable entry
Industry-leading miniaturized design of accessories, 4 types of accessories can be installed at the same time, meeting a variety of extended functional requirements
03 Smart IoT
Equivalent to current unbalance measurement, tripping records/fault information display, etc., to meet customers' needs for digital and intelligent system construction
Detailed parameters
Parameter table 1
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| Parameter classification | Parameter item | Parameter value |
|---|
| Electrical performance | Product model | NM5TS-125 |
| | NM5TS-250 |
| Rated operating current In(A),40℃ | 32-63-100-125 |
| | 160-200-225-250 |
| Rated insulation voltage Ui(V) | 1000 |
| | 1000 |
| Rated impulse withstand voltage Uimp (kV) | 8 |
| | 8 |
| Rated operating voltage Ue(V), AC 50/60Hz | 380/400/415, 660/690 |
| | 380/400/415, 660/690 |
| Number of poles | 3P |
| Breaking ability | Q |
| | Q |
| Rated limit short circuit | AC380/400/415V |
| | 50 |
| | 50 |
| Breaking capacity Rated operation Line short circuit | AC380/400/415V |
| | 50 |
| | 50 |
| Breaking capacity Ics(kA) | AC660/690V |
| | 5 |
| | 5 |
| Rated short-time withstand current Icw(kA),1s | AC380V/400V/415V |
| Comply with standards | IEC/EN 60947-2, GB/T 14048.2 |
| Use category | A |
| Working environment temperature (℃) | -35~+70 |
| Isolation function* | |
| Wiring method | Up / Free entry* |
| Flashover distance | ≤ 50/zero flashover (need to install short terminal cover TCY) |
| Mechanical life (times) | Maintenance-free 20000 |
| | With maintenance 40000 |
| | 40000 |
| Electrical life (times) | AC380/400/415V,In 10000 |
| | 10000 |
| Protected class Type | Distribution protection |
| Installation and connection | Fixed type | Plate front connection |
| Behind-board connection |
| Plug-in type | Front-board connection |
| | Rear connection |
| Pull-out base | Front connection - |
| | Board rear connection - |
| Outline dimensions | Outline dimensions (mm) Width (W)×Height (H)×Depth (D) | 3P 92×155×91 |
| | 107×165×101.5 |
| | 4P 122×155×91 |
| | 142×165×101.5 |
| Note | | 1. When wiring the lower incoming wire, the breaking capacity needs to be reduced to 75%. |
Parameter table 2
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| Parameter classification | Parameter item | Parameter value |
|---|
| NM5S TS-400 | 250-300-315-400 |
| NM5STS-630 | 400-500-630 |
| NM5STS-1000 | 630-800-1000 |
| System parameters | | |
| < /td> | 1000 | 1000 |
| 12 | 12 |
| 380/400/415 , 660/690 | 380/400/415, 660/690 |
| F | F |
| Q | Q |
| 50 | 50 |
| 70 | 70 |
| 10 | 10 |
| 15 | 15 |
| 50 |
| 70 | 70 |
| 10 | 10 |
| < /td> | 15 | 15 |
| 6 | 6 |
| 8 | 8 |
| 12 | 12 |
| Performance indicators | B | |
| 10000 | 10000 |
| 20000 | 20000 |
| 8000 |
| 5000 | 5000 |
| 10000 | 10000 |
| 2500 | 2500 |
| Communication | | |
| Protection function | | |
| Installation | | |
| 140×257×111 | 140×2 57×111 |
| 184×257×111 | 184×257×111 |
| 210×280×118< /td> | 210×280×118 |
| 280×280×118 | 280×280×118 |
