| CPU | ESP-Shelly-C38F |
| Flash | 8 MB |
| Driver opening | Ø8 mm / Ø0.3 in |
| Mounting | DIN rail |
| AC supply voltage | 220-240 V~ 50/60 Hz |
| DC supply voltage | N / A |
| Energy consumption | < 2W |
| External protection | 63 A, trigger characteristic B or C. Interrupting capacity of 6 kA. Energy limitation class 3 |
| Temperature sensor | Yes |
| Accuracy of voltmeters | ±1 % |
| Ammeters (RMS via CT for each phase and Neutral) | 0 - 63 To (130 To saturation) |
| Voltmeters (RMS for each phase) | 220-240 V~ 50/60 Hz |
| Accuracy of ammeters | ±1 % (2 - 63 A), ±2 % (1 - 2 A), ±5 % (0 - 1 A) |
| Power and energy meters | Active and apparent power Active and apparent energy Power factor Fundamental active and fundamental reactive power |
| No-load threshold | 30 VA |
| Storage of measurement data | At least 7 data resolution days of 1 minute |
| Data export | CSV for recorded PQ values Export in JSON format via RPC |
| Communication | WiFi 2.4 GHz Bluetooth 4.2 LAN |
| Material | Plastic |
| Webhooks (URL actions) | 20 with 5 URL per hook |
| Scripting | mJS |
| MQTT | Yes |
| COAP | No |
| Scripting | Yes |
| Dimensions | 21 x 54 x 42 mm |
| Weight | 58 g |