Power Meters

Contact Supplier

Model No.: BJ194E-9S4

View DetailsQuick Brief: Place of Origin: Zhejiang China (Mainland), Brand Name: BlueJay, Model Number: BJ194E-9S4, Measuring Current Range: 0~9999, Measuring Voltage Range: 0~9999, Accuracy Class: 0.2, Operating Temperature: -20~60C, Dimensions: 96x96x120mm

Features: 1.Three-phase LED display, 2.Measure all the basic parameter: A,V,F,PF,W.Energy and so on., 3.Network meter

Contact Supplier

Model No.: PMAC727

View DetailsQuick Brief: Place of Origin: Guangdong China (Mainland), Brand Name: PILOT, Model Number: PMAC727, Measuring Current Range: 0~50,000 A, Measuring Voltage Range: 0~500 KV, Accuracy Class: 0.2, Operating Temperature: -20~ 70℃, Dimensions: 96x96mm, certificate: CE, Power supply:: 85~265VAC/ 45~65Hz, 100~ 300VDC, Power loss: <3VA, Input range:: Current: AC 0~5A, Frequency: 50/ 60Hz, Overload capability:: 120%, Harmonic analysis:: 31st odd component for volt..., Communication:: RS485 port/ MODBUS protocol, Baud rate:: 4800/ 9600/ 19200/ 38400 bps, Standard:: IEC61000-4

Features: 1. energy meter measure current, voltage, power, kWh/kvarh, harmonic, temperature, 2. record daily/ monthly kWh data, 3. RS485

Contact Supplier

Model No.: PMAC720

View DetailsQuick Brief: Place of Origin: Guangdong China (Mainland), Brand Name: Pilot, Model Number: PMAC720, Measuring Current Range: 0~49,999A, Measuring Voltage Range: 0~220KV, Accuracy Class: 0.2%, Operating Temperature: -20~+60, Dimensions: 96x96mm, Metering: True RMS, 1 sec. refresh time, Current input: 1A or 5A, Voltage input: 220V/ 380V or 57.7V/ 100V, Frequency: 50 or 60Hz, Over load: 120% of rating, Power supply: 85~265VAC or 80~300VDC, IP index: IP54 (front panel), IP20 ( case), Net weight: 500g, Certificate: CE, Standard: IEC 61000-4-2/3/4/5

Features: 1. Power metering: U,I,P,Q,kWh,PF,F,, 2. RS485/ Modbus, 3. Optional DI/ DO module, 4. Auxiliary SOE,TOU. 31th harmonic analysis

Contact Supplier

Model No.: PMAC720

View DetailsQuick Brief: Place of Origin: Guangdong China (Mainland), Brand Name: Pilot, Model Number: PMAC720, Measuring Current Range: 0~49,999A, Measuring Voltage Range: 0~220KV, Accuracy Class: 0.2%, Operating Temperature: -20~+60, Dimensions: 96x96mm, Metering: True RMS, 1 sec. refresh time, Current input: 1A or 5A, Voltage input: 220V/ 380V or 57.7V/ 100V, Frequency: 50 or 60Hz, Over load: 120% of rating, Power supply: 85~265VAC or 80~300VDC, IP index: IP54 (front panel), IP20 ( case), Net weight: 500g, Certificate: CE, Standard: IEC 61000-4-2/3/4/5

Features: 1. Power metering: U,I,P,Q,kWh,etc, 2. RS485/ Modbus, 3. Optional DI/ DO module, 4. Auxiliary SOE,TOU,31st armonic analysis

Contact Supplier

Model No.: PMAC720

View DetailsQuick Brief: Place of Origin: Guangdong China (Mainland), Brand Name: Pilot, Model Number: PMAC720, Measuring Current Range: 0~49,999A, Measuring Voltage Range: 0~220KV, Accuracy Class: 0.2%, Operating Temperature: -20~+60, Dimensions: 96x96mm, Metering: True RMS, 1 sec. refresh time, Current input: 1A or 5A, Voltage input: 220V/ 380V or 57.7V/ 100V, Frequency: 50 or 60Hz, Over load: 120% of rating, Power supply: 85~265VAC or 80~300VDC, IP index: IP54 (front panel), IP20 ( case), Net weight: 500g, Certificate: CE, Standard: IEC 61000-4-2/3/4/5

Features: 1. Power metering: U,I,P,Q,kWh,PF,F,, 2. RS485/ Modbus, 3. Optional DI/ DO module, 4. Auxiliary SOE,TOU. 31th harmonic analysis

Contact Supplier

Model No.: PMAC735

View DetailsQuick Brief: Place of Origin: China (Mainland), Brand Name: Pilot, Model Number: PMAC735, Measuring Current Range: 0~50000A, Measuring Voltage Range: 0~500KV, Accuracy Class: 0.2, Operating Temperature: -20~+60, Dimensions: 96X96mm

Features: 1. LCD,measuring volt,amp,watt,var,va,Hz, cosf,kwh,kvarh, harmonics,Unbalance rate, demand, 2. RS485/Modbus, Profibus, 3. DI/DO

Contact Supplier

Model No.: PMAC760

View DetailsQuick Brief: Place of Origin: Guangdong China (Mainland), Brand Name: PILOT, Model Number: PMAC760, Measuring Current Range: 0~49,999A, Measuring Voltage Range: 0~50,000V, Accuracy Class: 0.2%, Operating Temperature: -20~+60, Dimensions: 96 x 96mm, Metering: True RMS, 1 sec refresh time, Overload: 120% of rated, Status input: 4 channels, Relay output: 4 channels, IP index: IP54 (front panel) and IP20 (case), Harmonic analysis: 2-63rd harmonic, Power frequency withstand voltage: AC 2KV/minu..., Power supply: 85~265VAC, 80~300VDC, Power loss: <10VA, Certification: CE

Features: 1. Panel meter display voltage, current, power, Hz, kWh, kvarh, 63rd harmonic, 2. 4DI/ 4DO, RS485, Ethernet, 3. 4MB memory

Contact Supplier

Model No.: PMAC760

View DetailsQuick Brief: Place of Origin: Guangdong China (Mainland), Brand Name: PILOT, Model Number: PMAC760, Measuring Current Range: 0~49,999A, Measuring Voltage Range: 0~50,000V, Accuracy Class: 0.2%, Operating Temperature: -20~+60, Dimensions: 96 x 96mm, Metering: True RMS, 1 sec refresh time, Overload: 120% of rated, Status input: 4 channels, Relay output: 4 channels, IP index: IP54 (front panel) and IP20 (case), Harmonic analysis: 2-63rd harmonic, Power frequency withstand voltage: AC 2KV/minu..., Power supply: 85~265VAC, 80~300VDC, Power loss: <10VA, Certification: CE

Features: 1. Panel meter display voltage, current, power, Hz, kWh, kvarh, 63rd harmonic, 2. 4DI/ 4DO, RS485, Ethernet, 3. 4MB memory

Contact Supplier

Model No.: PMAC727

View DetailsQuick Brief: Place of Origin: Guangdong China (Mainland), Brand Name: PILOT, Model Number: PMAC727, Measuring Current Range: 0~50,000 A, Measuring Voltage Range: 0~500 KV, Accuracy Class: 0.2, Operating Temperature: -20~ 70℃, Dimensions: 96x96mm, certificate: CE, Power supply:: 85~265VAC/ 45~65Hz, 100~ 300VDC, Power loss: <3VA, Input range:: Current: AC 0~5A, Frequency: 50/ 60Hz, Overload capability:: 120%, Harmonic analysis:: 31st odd component for volt..., Communication:: RS485 port/ MODBUS protocol, Baud rate:: 4800/ 9600/ 19200/ 38400 bps, Standard:: IEC61000-4

Features: 1. energy monitor measure current, voltage, power, kWh/kvarh, harmonic, temperature, 2. record daily/ monthly kWh data, 3. RS485

Contact Supplier

Model No.: PMAC727

View DetailsQuick Brief: Place of Origin: Guangdong China (Mainland), Brand Name: PILOT, Model Number: PMAC727, Measuring Current Range: 0~50,000 A, Measuring Voltage Range: 0~500 KV, Accuracy Class: 0.2, Operating Temperature: -20~ 70℃, Dimensions: 96x96mm, certificate: CE, Power supply:: 85~265VAC/ 45~65Hz, 100~ 300VDC, Power loss: <3VA, Input range:: Current: AC 0~5A, Frequency: 50/ 60Hz, Overload capability:: 120%, Harmonic analysis:: 31st odd component for volt..., Communication:: RS485 port/ MODBUS protocol, Baud rate:: 4800/ 9600/ 19200/ 38400 bps, Standard:: IEC61000-4

Features: 1. energy monitor measure current, voltage, power, kWh/kvarh, harmonic, temperature, 2. record daily/ monthly kWh data, 3. RS485

Contact Supplier

Model No.: PMAC735

View DetailsQuick Brief: Place of Origin: China (Mainland), Brand Name: Pilot, Model Number: PMAC735, Measuring Current Range: 0~50000A, Measuring Voltage Range: 0~500KV, Accuracy Class: 0.2, Operating Temperature: -20~+60, Dimensions: 96X96mm

Features: 1. LCD,measuring volt,amp,watt,var,va,Hz, cosf,kwh,kvarh, harmonics,Unbalance rate, demand, 2. RS485/Modbus, Profibus, 3. DI/DO

Contact Supplier

Model No.: PMAC735

View DetailsQuick Brief: Place of Origin: Guangdong China (Mainland), Brand Name: Pilot, Model Number: PMAC735, Measuring Current Range: 0~50000A, Measuring Voltage Range: 0~500KV, Accuracy Class: 0.2, Operating Temperature: -20~+60, Dimensions: 96X96mm

Features: 1. Power metering volt,amp,watt,var,va,Hz, cosf,kwh,kvarh, harmonics,Unbalance rate, demand, 2. RS485/Modbus, Profibus, 3. DI/DO

Contact Supplier

Model No.: PMAC760

View DetailsQuick Brief: Place of Origin: Guangdong China (Mainland), Brand Name: PILOT, Model Number: PMAC760, Measuring Current Range: 0~49,999A, Measuring Voltage Range: 0~50,000V, Accuracy Class: 0.2%, Operating Temperature: -20~+60, Dimensions: 96 x 96mm, Metering: True RMS, 1 sec refresh time, Overload: 120% of rated, Status input: 4 channels, Relay output: 4 channels, IP index: IP54 (front panel) and IP20 (case), Harmonic analysis: 2-63rd harmonic, Power frequency withstand voltage: AC 2KV/minu..., Power supply: 85~265VAC, 80~300VDC, Power loss: <10VA, Certification: CE

Features: 1. Panel meter display voltage, current, power, Hz, kWh, kvarh, 63rd harmonic, 2. 4DI/ 4DO, RS485, Ethernet, 3. 4MB memory

Contact Supplier

Model No.:

View DetailsQuick Brief: Place of Origin: Zhejiang China (Mainland), Brand Name: ZOYEA

Features: 1. 3 PHASE Bi-directional active energy measurement, 2. Build-in RTC with temp correction, 3. 4 sets of tariff, 8 segments of

Contact Supplier

Model No.: BJ194E-9S4

View DetailsQuick Brief: Place of Origin: Zhejiang China (Mainland), Brand Name: BlueJay, Model Number: BJ194E-9S4, Measuring Current Range: 0~9999, Measuring Voltage Range: 0~9999, Accuracy Class: 0.2, Operating Temperature: -20~60C, Dimensions: 96x96x120mm

Features: 1.Three-phase LED display, 2.Measure all the basic parameter: A,V,F,PF,W.Energy and so on., 3.CE approved digital meter

Contact Supplier

Model No.: GS828-H2

View DetailsQuick Brief: Place of Origin: Hong Kong, Brand Name: 3Gtrack, Model Number: GS828-H2, feature: 6 Pulse Channels, accessories: 2 Temperature Sensors

Features: GS828-H2 is a wireless data logger integrated with Temperature Humidity Sensors., It is a temperature humidity monitoring system

Contact Supplier

Model No.: GS828-L

View DetailsQuick Brief: Place of Origin: Hong Kong, Brand Name: 3GTrack, Model Number: GS828-L, Measuring Voltage Range: 6.0~9.5V, Operating Temperature: -20 ~ +70C, Feature: waterproof

Features: Its a wireless environmetal data logging from low power mode., It low power design provide 2 years sleep mode when working

Contact Supplier

Model No.: PMAC720

View DetailsQuick Brief: Place of Origin: Guangdong China (Mainland), Brand Name: Pilot, Model Number: PMAC720, Measuring Current Range: 0~49,999A, Measuring Voltage Range: 0~220KV, Accuracy Class: 0.2%, Operating Temperature: -20~+60, Dimensions: 96x96mm, Metering: True RMS, 1 sec. refresh time, Current input: 1A or 5A, Voltage input: 220V/ 380V or 57.7V/ 100V, Frequency: 50 or 60Hz, Over load: 120% of rating, Power supply: 85~265VAC or 80~300VDC, IP index: IP54 (front panel), IP20 ( case), Net weight: 500g, Certificate: CE, Standard: IEC 61000-4-2/3/4/5

Features: 1. Power metering: U,I,P,Q,kWh,PF,F,, 2. RS485/ Modbus, 3. Optional DI/ DO module, 4. Auxiliary SOE,TOU. 31th harmonic analysis

Contact Supplier

Model No.:

View DetailsQuick Brief: Place of Origin: Chongqing China (Mainland), Brand Name: YD, Measuring Current Range: AC 1A,5A (optional), Measuring Voltage Range: AC 100V, 400V (optiona..., Accuracy Class: 0.2%, Operating Temperature: -10~55°C, Dimensions: 96*96mm, Color: black

Features: 1. LCD/LDE display, 2. Rs485 digital interface., 3. 96*96MM size.

Contact Supplier

Model No.: PMAC735

View DetailsQuick Brief: Place of Origin: China (Mainland), Brand Name: Pilot, Model Number: PMAC735, Measuring Current Range: 0~50000A, Measuring Voltage Range: 0~500KV, Accuracy Class: 0.2, Operating Temperature: -20~+60, Dimensions: 96X96mm

Features: 1. LCD,measuring volt,amp,watt,var,va,Hz, cosf,kwh,kvarh, harmonics,Unbalance rate, demand, 2. RS485/Modbus, Profibus, 3. DI/DO

Contact Supplier

Model No.: BD-202

View DetailsQuick Brief: Place of Origin: Shanghai China (Mainland), Brand Name: BD, Model Number: BD-202, Accuracy Class: high, Wavelength (nm): 650 /850 /1300 /1310 /1490 /15..., Optical Connector: FC (SC/ST can be optional), Fiber Type: SM, MM, working time (h): 20, Dimension (mm): 170 (L)*100 (W)*50 (H)

Features: Optical Laser Source, 1.Can provide 1 to 4 wavelength export, 2.Modulation frequency CW, 270HZ, 1KHZ, 2KHZ.

Contact Supplier

Model No.: PMAC735

View DetailsQuick Brief: Place of Origin: China (Mainland), Brand Name: Pilot, Model Number: PMAC735, Measuring Current Range: 0~50000A, Measuring Voltage Range: 0~500KV, Accuracy Class: 0.2, Operating Temperature: -20~+60, Dimensions: 96X96mm

Features: 1. LCD,measuring volt,amp,watt,var,va,Hz, cosf,kwh,kvarh, harmonics,Unbalance rate, demand, 2. RS485/Modbus, Profibus, 3. DI/DO

Contact Supplier

Model No.: SPD520

View DetailsQuick Brief: Place of Origin: Shanghai China (Mainland), Brand Name: Standardel, Model Number: SPD520, Measuring Current Range: Shunt, Measuring Voltage Range: 0-1000V, Accuracy Class: 0.2%, Operating Temperature: -20~60C, Dimensions: 72x72x85mm, Communication: RS485, Impulse Constant: 1-1000imp/kWh

Features: Measure DC U,I,P,+kWh, -kWh, Input DC 0-1000V;Direct 10A or Shunt, Pulse constact programmable, RS485 interface Modbus, EN61000

Contact Supplier

Model No.: PMAC760

View DetailsQuick Brief: Place of Origin: Guangdong China (Mainland), Brand Name: PILOT, Model Number: PMAC760, Measuring Current Range: 0~49,999A, Measuring Voltage Range: 0~50,000V, Accuracy Class: 0.2%, Operating Temperature: -20~+60, Dimensions: 96 x 96mm, Metering: True RMS, 1 sec refresh time, Overload: 120% of rated, Status input: 4 channels, Relay output: 4 channels, IP index: IP54 (front panel) and IP20 (case), Harmonic analysis: 2-63rd harmonic, Power frequency withstand voltage: AC 2KV/minu..., Power supply: 85~265VAC, 80~300VDC, Power loss: <10VA, Certification: CE

Features: 1. Panel meter display voltage, current, power, Hz, kWh, kvarh, 63rd harmonic, 2. 4DI/ 4DO, RS485, Ethernet, 3. 4MB memory

Contact Supplier

Model No.: PMAC727

View DetailsQuick Brief: Place of Origin: Guangdong China (Mainland), Brand Name: PILOT, Model Number: PMAC727, Measuring Current Range: 0~50,000 A, Measuring Voltage Range: 0~500 KV, Accuracy Class: 0.2, Operating Temperature: -20~ 70℃, Dimensions: 96x96mm, certificate: CE, Power supply:: 85~265VAC/ 45~65Hz, 100~ 300VDC, Power loss: <3VA, Input range:: Current: AC 0~5A, Frequency: 50/ 60Hz, Overload capability:: 120%, Harmonic analysis:: 31st odd component for volt..., Communication:: RS485 port/ MODBUS protocol, Baud rate:: 4800/ 9600/ 19200/ 38400 bps, Standard:: IEC61000-4

Features: 1. energy monitor measure current, voltage, power, kWh/kvarh, harmonic, temperature, 2. record daily/ monthly kWh data, 3. RS485

Contact Supplier

Model No.: PMAC760

View DetailsQuick Brief: Place of Origin: Guangdong China (Mainland), Brand Name: PILOT, Model Number: PMAC760, Measuring Current Range: 0~49,999A, Measuring Voltage Range: 0~50,000V, Accuracy Class: 0.2%, Operating Temperature: -20~+60, Dimensions: 96 x 96mm, Metering: True RMS, 1 sec refresh time, Overload: 120% of rated, Status input: 4 channels, Relay output: 4 channels, IP index: IP54 (front panel) and IP20 (case), Harmonic analysis: 2-63rd harmonic, Power frequency withstand voltage: AC 2KV/minu..., Power supply: 85~265VAC, 80~300VDC, Power loss: <10VA, Certification: CE

Features: 1. Panel meter display voltage, current, power, Hz, kWh, kvarh, 63rd harmonic, 2. 4DI/ 4DO, RS485, Ethernet, 3. 4MB memory

Contact Supplier

Model No.: SPD520

View DetailsQuick Brief: Place of Origin: Shanghai China (Mainland), Brand Name: Standardel, Model Number: SPD520, Measuring Current Range: Shunt, Measuring Voltage Range: 0-1000V, Accuracy Class: 0.2%, Operating Temperature: -20~60C, Dimensions: 72x72x85mm, Communication: RS485, Impulse Constant: 1-1000imp/kWh

Features: Measure DC U,I,P,+kWh, -kWh, Input DC 0-1000V;Direct 10A or Shunt, Pulse constact programmable, RS485 interface Modbus, EN61000

Contact Supplier

Model No.: SPT520

View DetailsQuick Brief: Place of Origin: Shanghai China (Mainland), Brand Name: StandardeL, Model Number: SPT520, Measuring Current Range: 5A or 1A, Measuring Voltage Range: 110V,230V,400V ph to p..., Accuracy Class: 0.5%, Operating Temperature: -20~70C, Dimensions: 72x72x85mm, Primary CT:: 5-49995, Communication:: RS485 Modbus, Display:: Big White LCD, Outputs: 2 Inpulse Outputs

Features: Red high light LED display;, Measure 30 parameters on 3P4L or 3P3L;, RS485 interface (Modbus), Free Program Software, EN61036

Contact Supplier

Model No.: SPT520

View DetailsQuick Brief: Place of Origin: Shanghai China (Mainland), Brand Name: StandardeL, Model Number: SPT520, Measuring Current Range: 5A or 1A, Measuring Voltage Range: 110V,230V,400V ph to p..., Accuracy Class: 0.5%, Operating Temperature: -20~70C, Dimensions: 96x96x85mm, Primary CT:: 5-49995, Communication:: RS485 Modbus, Display:: Big White LCD, Outputs: 2 Inpulse Outputs

Features: Red high light LED display;, Measure 30 parameters on 3P4L or 3P3L;, RS485 interface (Modbus), Free Program Software, EN61036

Contact Supplier

Model No.: SPD520

View DetailsQuick Brief: Place of Origin: Shanghai China (Mainland), Brand Name: Standardel, Model Number: SPD520, Measuring Current Range: Shunt, Measuring Voltage Range: 0-1000V, Accuracy Class: 0.2%, Operating Temperature: -20~60C, Dimensions: 72x72x85mm, Communication: RS485, Impulse Constant: 1-1000imp/kWh

Features: Measure DC U,I,P,+kWh, -kWh, Input DC 0-1000V;Direct 10A or Shunt, Pulse constact programmable, RS485 interface Modbus, EN61000

Contact Supplier

Model No.: SPD520

View DetailsQuick Brief: Place of Origin: Shanghai China (Mainland), Brand Name: Standardel, Model Number: SPD520, Measuring Current Range: Shunt, Measuring Voltage Range: 0-1000V, Accuracy Class: 0.2%, Operating Temperature: -20~60C, Dimensions: 72x72x85mm, Communication: RS485, Impulse Constant: 1-1000imp/kWh

Features: Measure DC 0-1000V, Direct 10A or Shunt, Pulse constact programmable, RS485 interface Modbus, EN61000 & EN60136

Contact Supplier

Model No.: BJ-194P-9X1

View DetailsQuick Brief: Place of Origin: Zhejiang China (Mainland), Brand Name: Blue Jay, Model Number: BJ-194P-9X1, Measuring Current Range: 0~9999, Measuring Voltage Range: 0~9999, Accuracy Class: 0.5, Operating Temperature: -20~60, Dimensions: 96x96x123mm

Features: 1. RMS value measurement and display, 2. Analog output and alarm output is optional, 3. Can add RS485 communication

Contact Supplier

Model No.: SPM660

View DetailsQuick Brief: Place of Origin: Shanghai China (Mainland), Brand Name: Sino-Telecom, Model Number: SPM660

Features: SPM660, high-quality, compact-size, convenient-operation equipment for PON deployment. SPM660 ena

Contact Supplier

Model No.: BJ-194P-9X1

View DetailsQuick Brief: Place of Origin: Zhejiang China (Mainland), Brand Name: Blue Jay, Model Number: BJ-194P-9X1, Measuring Current Range: 0~9999, Measuring Voltage Range: 0~9999, Accuracy Class: 0.5, Operating Temperature: -20~60, Dimensions: 96x96x123mm

Features: 1. RMS value measurement and display, 2. Analog output and alarm output is optional, 3. Can add RS485 communication

Contact Supplier

Model No.: BJ-194P-9X1

View DetailsQuick Brief: Place of Origin: Zhejiang China (Mainland), Brand Name: Blue Jay, Model Number: BJ-194P-9X1, Measuring Current Range: 0~9999, Measuring Voltage Range: 0~9999, Accuracy Class: 0.5, Operating Temperature: -20~60, Dimensions: 96x96x123mm

Features: 1. RMS value measurement and display, 2. Analog output and alarm output is optional, 3. Can add RS485 communication

Contact Supplier

Model No.: BJ-194P-9X1

View DetailsQuick Brief: Place of Origin: Zhejiang China (Mainland), Brand Name: Blue Jay, Model Number: BJ-194P-9X1, Measuring Current Range: 0~9999, Measuring Voltage Range: 0~9999, Accuracy Class: 0.5, Operating Temperature: -20~60, Dimensions: 96x96x123mm

Features: 1. RMS value measurement and display, 2. Analog output and alarm output is optional, 3. Protection IP65, ABS Plastic shell

Contact Supplier

Model No.: GS828-P

View DetailsQuick Brief: Place of Origin: Hong Kong, Brand Name: 3GTrack, Model Number: GS828-P, Operating Temperature: -20C ~ +70C

Features: GS828-P is a GPRS Data Logger supporting Modbus power meter., It uploads power meter data on schedule or alarm via SMS or GPRS.

Contact Supplier

Model No.: BJ194H-3X1

View DetailsQuick Brief: Place of Origin: Zhejiang China (Mainland), Brand Name: blue jay, Model Number: BJ194H-3X1, Measuring Current Range: 0-9999, Measuring Voltage Range: 0-9999, Accuracy Class: 0.5, Operating Temperature: -20-60c, Dimensions: 83x83x80

Features: 1. Accuracy class 0.2 or 0.5, 2. Current measuring .../5 or .../1 A, 3. Variety of installation dimension