SMA Energy Meter 20

Technical Data

• Inputs (voltage and current)
• Nominal voltage: 230 V / 400 V.
• Frequency: 50 Hz / ±5%.
• Nominal current / limiting current per line conductor: 5 A / 63 A (>63 A can be connected via external current transformers).
• Start-up current: < 25 mA.
• Connection cross-section: 10 mm² to 16 mm² 1) (for 63 A fusing).
• Torque for screw terminals: 2.0 Nm.

Ambient Conditions in Operation

• Ambient temperature: –25°C to +40°C.
• Storage temperature range: –25°C to +70°C.
• Protection class (according to IEC 62103): II.
• Degree of protection (according to IEC 60529): IP2X.
• Max. permissible value for relative humidity (non-condensing): 5% to 90%.
• Elevation above MSL: 0 m to 2000 m.

General Data

• Dimensions (W/H/D): 70 mm/88 mm/65 mm.
• Top hat-rail width units: 4.
• Weight: 0.3 kg.
• Mounting location: Switch or meter cabinet.
• Mounting type: Top-hat rail mounting.
• Connection to the local router: via Ethernet cable (10/100 Mbit/s, RJ45 plug).
• Status display: 2 LEDs.
• Self-consumption: < 3 W.
• Measurement accuracy, measuring cycle: 1%, 1000 ms.

System Compatibility (as of January 2017)

• The following devices can be used with the SMA Energy Meter3
• SMA energy management: Sunny Home Manager.
• SMA PV inverter: Sunny Boy 1.5/2.5, Sunny Boy 3.0–5.0.
• SMA storage systems: Sunny Boy Storage, Sunny Boy Smart Energy, Sunny Island X. XH/M.
• SMA communication devices: SMA Cluster Controller.