PQ3K

INPUTS

• Voltage
  Channels: (4) AC
  Nominal Voltage: 57.7 … 400 VLN, 100 … 693 VLL
  Overload capacity: 480 VLN, 832 VLL (permanent)
  Nominal frequency: 42 … 50 … 58 Hz, 50.5 … 60 … 69.5 Hz
• Current
  Channels: (4) AC
  Nominal Current: 1 … 5 A (max. 7.5 A)
  Overload capacity: 10 A (permanent), 100 A, 5×1 s, interval 300 s
• Sampling rate: 18 kHz

TYPES OF CONNECTIONS

• Single phase
• Split phase
• 3 or 4-wire balanced load
• 3-wire balanced load [2U, 1I]
• 3-wire unbalanced load, Aron connection
• 3 or 4-wire unbalanced load
• 4-wire unbalanced load, Open-Y

I/O-INTERFACES

• DIGITAL INPUTS PASSIVE (standard)
  Nominal voltage: 12/24 V DC (30 V max.)
• DIGITAL INPUTS ACTIVE (optional)
  Open circuit voltage: ≤ 15 V
• RELAYS (optional)
  Contacts: Changeover contact
  Load capacity: 250 V AC, 2 A, 500 VA; 30 V DC, 2 A, 60 W
• DIGITAL OUTPUTS 2 (standard)
  Nominal voltage: 12/24 V DC (30 V max.)
• ANALOG OUTPUTS (optional)
  Linearization: Linear, kinked
  Range: ± 20 mA (24 mA max.), bipolar
  Accuracy: ± 0.2 % von 20 mA
  Burden: ≤ 500 Ω (max. 10 V/20 mA)
• FAULT CURRENT MONITORING For grounded systems (optional)
  Number of meas. channels: 2 (2 measurement ranges each)
  Measurement range :1 (1A) Earth current measurement
  • Measuring transformer: 1/1 up to 1/1000 A
  • Alarm limit: 30 mA up to 1000 A
  Measurement range: 2 (2mA) RCM with connection monitoring
  • Measuring transformer: Residual current transformer 500/1 up
  to 1000/1 A
  • Alarm limit: 30 mA up to 1 A
• TEMPERATURE INPUTS (optional)
  Number of channels: 2
  Measurement sensor: Pt100 / PTC; 2-wire

INSTRUMENT POWER

• Standard nominal voltage: 110…230 V AC, 130…230 V DC
• Optional nominal voltage: 24 … 48 V DC
• Optional nominal voltage: 110 … 200 V AC, 110 … 200 V DC
• Consumption: ≤ 30 VA, ≤ 13 W

BASIC UNCERTAINTY ACCORDING IEC/EN 60688

• Voltage, current: ±0.1 %
• Power: ±0.2 %
• Power: factor ±0.1°
• Frequency: ±0.01 Hz
• Imbalance: U, I ±0.5 %
• Harmonic: ±0.5 %
• THD: V, I: ±0.5 %
• Active energy: Class 0.2S (IEC/EN 62 053-22)
• Reactive energy: Class 0.5S (IEC/EN 62 053-24)

INTERFACES

• ETHERNET (standard)
  100Base TX; RJ45 socket
  Mode: 10/100 MBit/s, full/half duplex, auto-negotiation
  Protocols: Modbus/TCP, http, NTP (time synchronization)
• IEC61850 (optional)
  Ethernet 100BaseTX, RJ45 sockets, 2 ports
  Mode: 10/100 Mbit/s, full/half duplex, auto-negotiation. Protocol: IEC61850, NTP
• PROFINET IO (optional)
  Conformance class: CC-B
  100BaseTX, RJ45-Buchsen, 2 ports
  Mode: 10/100 Mbit/s, full/half duplex, auto-negotiation
  Protocol: PROFINET, LLDP, SNMP
• MODBUS/RTU (optional)
  RS-485, max. 1200 m (4000 ft)
  Baud rate: 9.6 to 115.2 kBaud
• TIME REFERENCE Internal clock
  Clock accuracy: ± 2 minutes/month (15 to 30°C)
  Synchronization via NTP server or GPS

ENVIRONMENTAL CONDITIONS, GENERAL INFORMATION

• Operating temperature without UPS: –10 to +55 °C
• Operating temperature with UPS: 0 to +35 °C
• Storage temperature: –25 to +70 °C
• Temperature influence: 0.5 x basic uncertainty per 10 K
• Long-term drift: 0.5 x basic uncertainty per year
• Others Application group II (IEC/EN 60 688)
  Relative air humidity <95 % without condensation
• Operating altitude: ≤2000 m above NN
• Only to be used in buildings!

MECHANICAL PROPERTIES

• Housing material: Polycarbonate (Makrolon)
• Flammability: class V-0 according UL94, self-extinguishing, not dripping, free of halogen
• Weight: 800 g

SAFETY

• Current inputs are galvanically isolated from each other.
• Protection class II (protective insulation, voltage inputs via protective impedance)
• Pollution degree 2
• Protection IP54 (front), IP30 (housing), IP20 (terminals)
• Measurement category U: 600 V CAT III, I: 300 V CAT III