Shelly Pro 3EM-400A DIN-rail Energy Meter

• Maximum measurement: 400 A per phase and neutral
• 3 × 400 A current transformers included
• Supply: 110–240 V AC, 50/60 Hz
• 4-quadrant measurement
• Active-energy accuracy Class B; current/voltage accuracy up to ±1% within published ranges
• At least 60 days of on-device data at 1-minute resolution
• Ethernet LAN, Wi-Fi and Bluetooth

• EAN / SKU: 3800235268117
• Maximum measurement: 400 A per phase and neutral
• 3 × 400 A current transformers included
• Supply: 110–240 V AC, 50/60 Hz
• 4-quadrant measurement
• Active-energy accuracy Class B; current/voltage accuracy up to ±1% within published ranges
• At least 60 days of on-device data at 1-minute resolution
• Ethernet LAN, Wi-Fi and Bluetooth
• DIN-rail mounting
• CSV and JSON data export
• Scripting and MQTT support

• Use the specified CT-400A current transformers and follow the official CT orientation/phase wiring.
• External protection must meet Shelly’s stated breaker/protection requirements.
• No dedicated hub is required for Wi-Fi/LAN operation.

Shelly product information, specifications and manuals