Shelly EM Gen4 Wi-Fi Energy Meter

Shelly EM Gen4 Wi-Fi Energy Meter

The Shelly EM Gen4 is a compact smart energy meter designed for real-time electricity monitoring in homes and businesses. Featuring Wi-Fi 6, Bluetooth 5, Zigbee and Matter connectivity, it supports single-phase, two-channel energy measurement using compatible current transformers. With local data storage, advanced automation capabilities and a dry-contact relay for contactor control, it provides a versatile solution for monitoring energy consumption and improving efficiency.

Key Features:

• Smart single-phase, two-channel energy meter
• Real-time electricity consumption monitoring
• Wi-Fi 6 wireless connectivity
• Bluetooth 5 Low Energy connectivity
• Zigbee connectivity with repeater functionality
• Matter smart home compatibility
• Supports up to two current transformers
• Compatible with 50A, 80A and 120A CT clamps
• One 50A current transformer included
• Measures voltage, current, power and energy
• Local data logging for at least 30 days
• One-minute measurement record resolution
• Dry-contact relay for contactor control
• 16MB flash memory
• MQTT, HTTP, WebSocket and RPC support
• Overheating and electrical protection features
• Compact design for concealed installation
• Manufacturer Model: S4EM-002CXCEU
• EAN: 3800238070779

Features

Real-Time Energy Monitoring

The Shelly EM Gen4 measures electricity consumption in real time, helping users track energy usage and identify opportunities to improve efficiency. Measurements include voltage, current, active power, apparent power, energy and power factor.

Dual-Channel Energy Measurement

The device supports two measurement channels using compatible current transformers. This allows monitoring of two electrical circuits within a single-phase installation.

Wi-Fi 6 and Multi-Protocol Connectivity

Built-in Wi-Fi 6, Bluetooth 5 and Zigbee connectivity provides flexible integration with compatible smart home networks. Matter compatibility enables interoperability with supported home automation platforms.

Current Transformer Compatibility

The EM Gen4 supports 50A, 80A and 120A current transformers for contactless current measurement. One 50A CT clamp is included, while additional compatible clamps are available separately.

Local Energy Data Storage

Built-in memory stores at least 30 days of energy measurement records at one-minute resolution. Data can be accessed locally and exported for monitoring and analysis.

Smart Automation and Scheduling

Support for schedules, webhooks, scripting and MQTT allows users to create automated actions based on energy measurements and integrate the meter into compatible automation systems.

Dry-Contact Relay Control

An integrated dry-contact relay supports control of external contactors, allowing compatible equipment to be switched through an appropriately configured electrical installation.

Compact Installation Design

Measuring just 37 x 42 x 16mm, the EM Gen4 is designed for installation in electrical wall boxes and other suitable enclosed locations with limited space.

Technical Specifications:

What's in the Box:

• 1 x Shelly EM Gen4 Energy Meter
• 1 x 50A Current Transformer Clamp

Note: Installation must be performed by a qualified electrician or authorised installer. The device requires a suitable AC supply and compatible CT clamps for energy measurement. Additional current transformers and external contactors are sold separately. The dry-contact relay is rated at 2A and must not be used to directly switch higher-current loads. Wireless functionality depends on network compatibility and operating conditions.

The Shelly EM Gen4 Wi-Fi Energy Meter combines precise dual-channel monitoring, Wi-Fi 6, Zigbee, Matter and local data logging in a compact design. With flexible automation and current transformer support, it provides an effective solution for monitoring and managing electricity consumption in homes and businesses.