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White DIN-rail energy meter with two 50 A current transformers

WUQ

WUQ EM 50A Energy Meter with Contactor Control

SKU CH-S2V5-Q5CH5

DIN-rail energy meter monitors two circuits up to 50 A and switches contactors via Wi-Fi and LAN without a hub

  • ProtocolOther
  • TypePlug-in Module
  • Dual-channel 50 A monitoring tracks two circuits independently
  • Integrated contactor switch automates heavy loads without extra hardware
  • LAN, Wi-Fi and Bluetooth give three local control paths
  • No hub required — works directly with Alexa and Google Home
  • Photovoltaic load control redirects surplus solar power to appliances

Single-phase dual-channel meter

The Shelly Pro EM 50A is a DIN-rail energy meter designed for single-phase circuits with two independent measurement channels. It includes two 50A current transformers and an integrated potential-free switch for contactor control. Small-business owners and home-automation enthusiasts can monitor consumption and automate loads without a separate hub.

Sustained monitoring and load control

Continuous metering feeds real-time and historical data to the Shelly Smart Control app over Wi-Fi, Bluetooth and LAN, so long-term trends remain visible without gaps. The built-in contactor relay lets the device disconnect heavy loads such as water dispensers or lighting circuits on schedule or when thresholds are exceeded, preventing overheating during extended operation.

50A transformer rating

Each supplied current transformer is rated at 50A, which defines the maximum measurable current per channel. Installations that exceed this value will require a different metering solution.

Highlights

  • Dual-channel 50 A monitoring tracks two circuits independently
  • Integrated contactor switch automates heavy loads without extra hardware
  • LAN, Wi-Fi and Bluetooth give three local control paths
  • No hub required — works directly with Alexa and Google Home
  • Photovoltaic load control redirects surplus solar power to appliances

Specifications

ProtocolOther
TypePlug-in Module

Questions about this item

Does the EM 50A generate noticeable heat or fan noise when measuring 50 A circuits continuously?

The meter has no moving parts and mounts on a DIN rail, so it runs silently and produces only minimal warmth during continuous operation.

What wiring or accessories must already be in place for the EM 50A to work?

You need a DIN-rail enclosure, a 50 A circuit to monitor, and the two included current transformers clipped around the conductors.

Will the EM 50A integrate with an older contactor or relay panel I already use?

Its potential-free switch contacts can drive most legacy contactors, letting you add smart scheduling without replacing the existing panel.

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