Shelly Pro 3EM-400 is a three-phase energy meter for DIN rail mounting. It has been enhanced with all the flexibility of gen2 firmware and LAN connectivity, providing professional integrators with additional options for end-user solutions. Shelly Pro 3EM-400 displays accumulated energy as well as instantaneous voltage, current and power factor per phase in real time. https://elecena.pl/product/24082148/shelly-pro-3em-400-shelly-pro-3em-400a 2023-08-26 https://elecena.pl/product/24082148/shelly-pro-3em-400-shelly-pro-3em-400a 2023-09-29 https://elecena.pl/product/24082148/shelly-pro-3em-400-shelly-pro-3em-400a 2024-01-20 https://elecena.pl/product/24082148/shelly-pro-3em-400-shelly-pro-3em-400a 2025-01-28 https://elecena.pl/product/24082148/shelly-pro-3em-400-shelly-pro-3em-400a 2026-04-14