NPM60 Series
Microcomputer Measurement and Control Protection Equipment
NPM60 Series Microcomputer Measurement and Control Protection Equipment
Widely used in commercial buildings, residential compounds and infrastructures to realize intelligent control and management.
NPM60 series microcomputer measurement and control protection equipment adopts microprocessor with highly integrated chip and maintenance-free design, and has good anti-interference performance; it has the functions of phase-to-phase instantaneous current protection, overload current protection, overvoltage protection, low voltage protection, zero sequence overvoltage protection, reclosing protection, timing zero sequence overcurrent protection, inverse-time zero sequence overcurrent protection, low-voltage zero sequence protection, transformer body protection and non-electrical power tripping protection. It is widely used in the fields of industry, commerce, residence and infrastructure, etc., to protect the circuits and equipment.
Automatic screen lighting by infrared sensor；Primary main wiring diagram Switch position；Measurement of real-time value and other information
Industrial-grade components Professional anti-electromagnetic interference
Adopts high-performance processor；Superior information storage capacity；Fast operation speed
Supports dual Ethernet Dual RS485 communication interfaces
General protection can be adjusted according to the specific electricity environment on the site
Adopts frequency tracking technology to eliminate calculation deviation caused by fundamental frequency fluctuations, and accurately calculates fundamental frequency components, harmonic components and sequence components.
Professional anti-electromagnetic interference design ensures the reliability of the device.
| Parameter type | Indicators | |
| Power supply | Voltage range | DC24V~AC/DC 265V |
| Frequency range | 40Hz~60Hz | |
| Maximum power consumption | 10W | |
| Power drop | 200ms | |
| Control power supply | Rated voltage | AC/DC 220V (110V should be specified when ordering) |
| Overload capacity | Continues operation at 60%-120%Un | |
| AC current circuit | Rated current | 5A (1A should be specified when ordering) |
| Power consumption | ＜0.5VA | |
| AC voltage circuit | Rated voltage | 100/√3V |
| Power consumption | ＜0.5VA | |
| Environmental characteristics | Operating temperature | -20℃~+65℃ |
| Storage temperature | -40℃~+80℃ | |
| humidity | 95% | |
| Mechanical strength | Vibration resistance | GB7261-2016-12.1 Class I |
| Impluse resistance | GB7261-2016-12.2 Class I | |
| Earthquake | GB7261-2016-12.3 Class I | |
| Insulation class | Industrial frequency dielectric withstand capability | 2.5kV/50Hz，1 min |
| 1.2/50μs Impulse wave | 5kV | |
| Measurement and metering accuracy | Current/Voltage | ±0.2% |
| Phase angle | ±0.5° | |
| Power factor | ±0.2% | |
| Frequency | ±0.01Hz | |
| DC flow | ±1% | |
| Power | ±0.5% | |
| Kilowatt-hour | ±0.5% | |
| NPM60 | G | L | Y | 2 | 1 | 5 | M |
| Product code | Protection category | Type of protection | Anti-tripping | Power supply | Input voltage | Input current | Additional functions |
| NPM60： Microcomputer measurement and control protection device |
G:General protection P: PT protection B:Standby Self-input protection D:Differential protection N:Non-electrical protection C:Public measurement and control F:Anti-islanding H:Low frequency and low voltage |
L:Line protection T:Transformer M: Motor protection C:Capacitor protection B:Busbar protection R:Backup protection X:PT parallel and harmonic elimination E:None |
Y: Supported N: Not supported |
2: AC/DC 220V 1: DC110V 4: DC48V 3: DC24V |
1: 100V 3: 380V 0:No voltage input |
5: 5A 1:1A 0:No current input |
M:Analog output |
Note: Transformer differential protection measurement and control device should be used in paired with transformer backup protection measurement and control device.
Power supply
Voltage range：DC24V~AC/DC265V
Frequency range：40Hz~60Hz
Maximum power consumption：10W
Power drop：200ms
Control power supply
Rated voltage：AC/DC 220V (110V should be specified when ordering)
Overload capacity：Continues operation at 60%-120%Un
AC current circuit
Rated current：5A(1A should be specified when ordering)
Power consumption：＜0.5VA
AC voltage circuit
Rated voltage：100/√3V
Power consumption：＜0.5VA
Environmental characteristics
Operating temperature：-20°C~+65°C
Storage temperature：-40°C~+80°C
Humidity：95%
Mechanical strength
Vibration resistance ：GB7261-2016-12.1 Class I
Impluse resistance：GB7261-2016-12.2 Class I
Earthquake：GB7261-2016-12.3 Class I
Insulation class
Industrial frequency dielectric withstand capability:2.5kV/50Hz，1 min
1.2/50us Impulse wave：5kV
Measurement and metering accuracy
Current/Voltage：±0.2%
Phase angle：±0.5°
Power factor：±0.2%
Frequency：±0.01Hz
DC flow：±1%
Power：±0.5%
Kilowatt-hour：±0.5%
Product code ：
NPM60:Microcomputer measurement and control protection device
Protection category：
G:General protection、P:PT protection、B:Standby Self-input protection、D:Differential protection、N:Non-electrical protection、C:Public measurement and control、F:Anti-islanding、H:Low frequency and low voltage
Type of protection：
L:Line protection、T:Transformer 、M: Motor protection、C:Capacitor protection、B:Busbar protection、R:Backup protection、X:PT parallel and harmonic elimination、E:None
Anti-tripping：
Y: Supported 、N:no addtional functionAnti-tripping
Power supply：
2:AC/DC220V、1:DC110V、4:DC48V、3:DC24V
Input voltage：
1:100V、3:380V、0:No voltage input
Input current：
5:5A、1:1A、0:No current input
Additional features：
M:Analog output
Note: Transformer differential protection measurement and control device should be used in paired with transformer backup protection measurement and control device.