The SIRAX BM1450 multifunctional DC energy meter can be used for monitoring and controlling in DC systems.

These meters measure a wide range of electrical parameters such as DC voltage, current, power, energy and many more. It supports bi-directional voltage and current measurement, 1 channel voltage input, 4 channel current input and 4 relay outputs. The large 4 line 8 digit LED display provides easy to read data directly on the meter front. The configuration can be done on site via three push buttons or via RS485/Modbus RTU.

• Measuring input:
  Nominal voltage 57.7...277 V_LN, 100...480 V_LL
  Nominal current 1 / 5 A
  Frequency range 45...50/60...66 Hz
• System type: three-phase, 3 or 4-wire asymmetrical
• Power supply : 100...250 V AC/DC
• Accuracy: 
  Voltage and current ±0.5 %
  Active and reactive power ±0.5 %
  Power factor ±3.0°
  THD U,I ±1.0 %
  Active energy Class 0.5
  Reactive energy Class 2
• Outputs: Analog 2 x 4...20mA, Relays 1 NO / 1 NC
• Interface: RS485 (Modbus RTU), Ethernet (Modbus TCP)
• Display: LED display, 3 lines, 4 digits each, measured values
• Meters: Active and reactive energy meter incoming and outgoing
  Counters: Operating hours counter for one consumer and the device itself
• Safety: 
  Double insulation
  Degree of pollution: 2
  Overvoltage category: CAT III 300 V
  Protection rating: Front IP54, housing IP20
• Dimensions: Control panel installation: 96 x 96 x 80 mm