Function and use
Chint NM5PS series plastic 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 products can be widely used in various power distribution application scenarios in the power 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
| Parameter classification | Parameter item | Parameter value |
|---|
| Product model | | NM5PS-12S |
| Electrical performance | Rated operating current In(A),40℃ | 32-63-100-125 |
| Rated insulation voltage Ui V | 1000 |
| Rated impulse withstand voltage Uimp kV | 8 |
| Rated operating voltage Ue(V),AC 50/60Hz | 380/400/415, 660/690 |
| Number of poles | 3P |
| | 4P |
| < /td> | Breaking capacity | F |
| | Q |
| | R |
| Rated limit short circuit breaking capacity Icu(kA) | AC380/400/415V 36 |
| | AC660/690V 8 |
| Rated operating short circuit breaking capacity Ics(kA) | AC380/400/415V 36 |
| | AC660/690V 4 |
| Rated short-time withstand current Icw(kA),1s | AC380V/400V/415V - |
| Comply with standards | IEC/EN 60947-2, GB/T 14048.2 |
| Usage category | A |
| Working environment temperature (℃) | -35~+70 |
| Isolation function | |
| Wiring method | Up/down free entry and exit² |
| Arc distance | ≤50/zero arc (short arc shield needs to be installed) TCV) |
| Mechanical life (times) | Maintenance-free 20000 |
| | With maintenance 40000 |
| Electrical life (times) | AC380/400/415V 10000 |
| Electrical type | Distribution protection |
| Protection type | Motor protection |
| Installation and connection | Fixed type | |
| Front panel front connection | ■ |
| Rear panel rear connection | |
| Plug-in type | td> | |
| Front panel front connection | ■ |
| Rear panel rear connection | |
| Pull-out base | |
| Front panel front connection | - |
| Rear panel rear connection | - |
| Outline dimensions | Outline dimensions (mm) Width (W)×Height (H)×Depth (D) | 3P 92×155×75.5 92×155×91 |
| | 4P 122×155×75.5 122×155×91 |
| Note | 1. The isolation function is not suitable for circuit breakers with 4A/4D poles;
2. When wiring the lower incoming wire, the breaking capacity needs to be reduced to 75%. | |
Parameter table 2
< td>NM5PS-250< td>F
| Parameter classification | Parameter item | Parameter value |
|---|
| System parameter | 160-200-225-250 |
| NM5PS-400 | 250-300-315-400 |
| | 1000 |
| | 1000 |
| | 8 |
| | 12 |
| | 380/400/415, 660/690 |
| | 380/400/415, 660/690 |
| F | 36 |
| Q | 50 |
| R | 70 |
| F | 36 |
| Q | 50 |
| R | 70 |
| 8 |
| Q | 10 |
| R | 10 |
| F | 8 |
| Q | 10 |
| R | 15 |
| F | 4 |
| < /td> | Q | 5 |
| R | 5 |
| F | 4 |
| Q | 10 |
| R | 15 |
| - | 6 |
| Performance Indicators | B | |
| | 20000 |
| | 10000 |
| | 40000 |
| | 20000 |
| | 10000 |
| | 8000 |
Parameter table 3
< /tr>Pull-out base
| Parameter classification | Parameter item | Parameter value |
|---|
| Product model | | NMSPS-630 |
| Electrical performance | Rated operating current In(A),40℃ | 400-500-630 |
| Rated insulation voltage Ui (V) | 1000 |
| Rated impulse withstand voltage Uimp (kV) | 12 |
| Rated operating voltage Ue(V), AC 50/60Hz | 380/400/415, 660/690 |
| Number of poles | 3P |
| | 4P(3P+N, 4P) |
| Breaking ability | F |
| | Q |
| | R |
| Rated limit short circuit Breaking capacity Icu(kA) | AC380/400/415V 50 |
| | 70 |
| | 100 |
| | AC660/690V 10 |
| | 15 |
| | 20 |
| Rated operating short circuit breaking capacity Ics(kA) | AC380/400/415V 50 |
| | 70 |
| | 70 |
| | AC660/690V 10 |
| | 15 |
| | 15 |
| Rated short-time withstand current Icw(kA),1s | AC380V/400V/415V 8 |
| Comply with standards | IEC6947.2, GB/T14048.2 |
| Use category | B |
| Working environment temperature (℃) | -35 ~ +70 |
| Isolation function | |
| Wiring method | ≤ Upper / Free entry from below |
| Flashover distance | ≤ 50/ Zero flashover (need to install short terminal cover TCY) |
| Mechanical life (times) | Maintenance-free 10000 |
| | With maintenance 20000 |
| Electrical life (times) | AC380/400/415V,In 8000 |
| Protection type | Distribution protection |
| | Motor protection |
| Installation and connection | Fixed | Front connection |
| | Rear connection |
| Plug-in | Front connection |
| | Rear connection |
| Front connection |
| | Rear connection |
| Outline dimensions | Outline dimensions (mm) Width (W) × Height (h) × Depth (D) | 3P 140×257×111 140×257×111 |
| | 4P 184×257×111 184×257×111 |
Parameter table 4
< td>240*270*115
| Parameter classification | Parameter item | Parameter value |
|---|
| System parameter | NM5PS-800(W630) | 800-400-500-630-700-800 W630-400-500-630 |
| NM5PS-1000 | 630-800-1000 |
| < /td> | 1000 |
| | 12 |
| | 380/400/415, 660/ 690 |
| | F |
| | Q |
| R |
| | 50 |
| | 70 |
| | 100 |
| | 15 |
| | 20< /td> |
| | 20 |
| | 50 |
| | 70 |
| | 70 |
| | 13 |
| 15 |
| | 15 |
| | 800:10 W630.8 |
| | 12 |
| Performance Indicators | | 100 00 |
| | 20000 |
| | 800:5000 W630:8000 |
| | 2500 |
| Communication | |
| Protection function | | |
| Installation | | 182*27 0*115 |
| | 210×280×118 |
| |
| | 280×280×118 |
