Energy meter with multiple functions Eastron SDM120-Pulse – 45A direct connection. Pulse emission capability.

• Dual measurement function: kWh, W, V, A, PF, Hz, etc.
• Backlit LCD display.
• 2 Pulse Outputs.
• Bidirectional Measurement.
• Maximum Current 45A direct loading.
• 1 Module width 18mm.
• MID Approval.
• 1P2W.

The SDM120P is a multifunction energy meter mounted on a DIN rail with direct connection and pulse emission capability. It is a 1-DIN meter (1 module width 18mm) with a maximum input of 45A. It measures active and reactive energy, current, voltage, power, power factor, frequency, etc. Suitable for monitoring energy consumption in residential areas, solar systems, electric vehicle charging systems, industrial and municipal applications.

Electrical Characteristics

• Measurement Type: RMS in single-phase AC system (1P+N).
• Measurement Accuracy:
• Capacity: 1% of upper limit.
• Active Energy: IEC 62053-21 Class 1.0/ EN50470-1/3 Class B.
• Reactive Energy: IEC62053-23 Class 2, IEC 61557-12 Class 2.
• Frequency: 0.2% of mid-frequency.
• Current: 0.5% of upper limit.
• Voltage: 0.5% of upper limit.
• Power Factor: 1% of unity (0.01).

Input & Output

• Current Input:
• Nominal Current (Ib/Iref): 5A.
• Maximum Current (Imax): 45A.
• Minimum Current (Imin): 0.25A.
• Starting Current: 40mA.
• Voltage:
• Nominal Voltage (Un): 230V.
• Operational Voltage: 80%~120% of Un.
• Output:
• SDM120P: 2 Pulse Outputs for imp/exp energy.
• SDM120M: 2 Pulse Outputs + RS485 Modbus.
• SDM120MB: 2 Pulse Outputs + M-bus EN13757.

Modbus Communications

• Interface Standard and Protocol: RS485 and MODBUS RTU.
• Communication Address: 1~247.
• Transmission Distance: 1000m Maximum.
• Transmission Speed: 1200bps~9600bps.
• Parity: None (default), Odd, Even.
• Stop Bits: 1 or 2.

M-Bus EN13757-3 Communications

• Communication Address: 1~250.
• Transmission Distance: 1000m Maximum.
• Transmission Speed: 300bps~9600bps.
• Parity: None (default), Odd, Even.
• Stop Bits: 1 or 2.