Ammeters / Voltmeters
EPA241A
AC/DC Ammeter
The EPA241A is a 4-digit digital ammeter that can be used with a current transformer or shunt. AC, DC or TRUE RMS measurement is easily selected from the front-panel keypad. It offers a multi-function alarm output for lower and upper limits and a wide programmable scale from -9999 A to 9999 A. Optionally, it can communicate via the ModBus RTU protocol over isolated RS-485.
Technical Specifications
Display and Keypad
- Keypad
- Micro switch
- Current Display
- 4 digits, 12 mm, 7-segment red LED
Housing
- Weight
- Approx. 250 g (with packaging)
- Housing Type
- Flush panel mounting with clamps
- Dimensions
- G77xY35xD71 mm
Electrical Characteristics
- Scale
- AC and RMS: 0 A…9999 A; DC: -999 A…9999 A
- Power Consumption
- 5VA
- Sensitivity
- 0.002 A x CT ratio
- Data Retention
- EEPROM (minimum 10 years)
- Accuracy
- AC: ±1% of full scale (±2% for square wave); DC: ±1% of full scale; RMS: ±1% of full scale (±2% for square wave)
- Connection
- 2.5 mm² terminal block
- Supply Voltage
- 230 Vac +10% -20%, 50/60 Hz; 24 Vac ±10%, 50/60 Hz; 9-30 Vdc / 7-24 Vac ±10%
- Operating Temperature °C
- 0...50 °C
Outputs
- Alarm Output
- 1 relay: 250 Vac, 8 A (resistive load), NO+NC
Inputs
- Input Impedance
- 12 MΩ / 40 kΩ
- Input Range
- -5 A…5 A (currents above 10 A will damage the device); -60 mV…60 mV (voltages above 50 V will damage the device)
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