Shelly Pro 4PM DIN-rail Smart 4-Channel Relay Switch for Smart Homes and Buildings

The Shelly Pro 4PM is a professional-grade energy monitoring solution engineered for both smart homes and smart buildings. Unlike standard smart plugs or switches, this DIN-rail mounted device for smart homes and buildings is designed to provide detailed, real-time tracking of energy consumption across up to four independent circuits. By seamlessly integrating with your electrical panel in homes and buildings, it unlocks a new level of control, automation, and energy efficiency, supporting everything from simple residential setups to complex commercial building environments.

Why Choose the Shelly Pro 4PM?

Built for professionals and tech-savvy homeowners alike, the Shelly Pro 4PM brings powerful energy monitoring directly into your breaker box. Its modular design ensures easy installation on any DIN rail, making it ideal for retrofit projects as well as new builds. The device supports Wi-Fi, Ethernet, and Bluetooth connectivity, allowing for flexible, reliable, and secure remote access-whether you’re at home, in the office, or across the globe.

Precise power metering is at the heart of the Shelly Pro 4PM. It delivers detailed insights into each monitored circuit, empowering users to identify wasteful consumption, optimize usage patterns, and reduce both energy costs and environmental impact. The device is engineered for high safety standards, featuring overload, overvoltage, and overheating protection-critical for any installation near sensitive electronics or heavy loads.

Key Features and Technical Specifications

This professional-grade relay switch delivers the following capabilities:

• Four-Channel Monitoring: Track up to four separate electrical circuits for comprehensive home automation data.
• Real-Time Energy Monitoring: Measure current (A), voltage (V), power (W), energy (kWh), and power factor for each channel.
• Professional Integration: Designed for DIN rail mounting inside standard breaker boxes or electrical panels.
• Advanced Connectivity: Supports Wi-Fi (2.4 GHz), Ethernet (RJ45), and Bluetooth-enabling flexible remote setup, control, and monitoring.
• MQTT, REST API, Home Assistant Compatibility: Easily integrate with leading smart home platforms for automation, alerts, and reporting.
• Built-in Safety Protections: Includes overload, overvoltage, and overheating protection for peace of mind.
• Web and App Control: Access via the Shelly Cloud app, Voice Assistants (Alexa, Google Assistant), or directly via web interface.
• High Build Quality: Flame retardant housing, robust screw terminals, and professional-grade components ensure long-term reliability.
• Easy Setup: Add devices quickly via Bluetooth or Ethernet during initial configuration.

Shelly Pro 4PM is engineered for those who want more than just remote control; it’s about gaining real insight and control over your home or business’s energy profile.

Applications: From Smart Homes to Commercial Buildings

The Shelly Pro 4PM is not just for residential use. It is equally well-suited for multi-dwelling units (apartments, condos, hotels), small office buildings, retail spaces, restaurants, gas stations, government buildings, universities, and more. Anywhere you need to monitor, control, or optimize electrical usage-especially across multiple circuits-this device delivers.

Here’s how different users can benefit:

• Homeowners: Monitor individual appliances or whole-home consumption, optimize usage, and automate circuits for convenience and efficiency.
• Businesses: Track energy use across departments, machines, or branches, enabling smarter budgeting, maintenance scheduling, and sustainability reporting.
• Facility Managers: Proactively manage energy across buildings, reduce waste, and quickly identify faulty equipment or unusual consumption patterns.

Seamless Smart Home Integration

One of the standout features of the Shelly Pro 4PM is its broad compatibility with popular home automation systems. Whether your ecosystem is based on Amazon Alexa, Google Home, Apple HomeKit, SmartThings, or open-source platforms like Home Assistant, you can expect smooth integration. The device supports MQTT and REST API for custom solutions and advanced scripting, making it a favorite among both casual users and tech enthusiasts.

For even more control, use the Shelly app to schedule operations, set energy alerts, and review historical data. The embedded web interface allows for direct, local access without reliance on cloud services-ensuring your data remains private and control is always at your fingertips.

Installation and Operation

Installation of the Shelly Pro 4PM is straightforward for licensed electricians or advanced DIYers. Once mounted on the DIN rail, connect your Phase, Neutral, and each circuit to be monitored. The screw terminals are sturdy and clearly labeled, supporting both flexible and solid-core wire.

Operation is equally simple. Use the Shelly app or web interface to pair devices, set up automation rules, and configure alerts. The Bluetooth connection simplifies initial setup by letting you configure the device directly from your phone, even if Wi-Fi or Ethernet isn’t yet available at the panel.

Safety and Peace of Mind

Safety is a core tenet of the Shelly Pro 4PM design. The device includes multiple protection mechanisms to guard against electrical hazards:

• Overload Protection: Safeguards against currents exceeding rated capacity.
• Overvoltage Protection: Shields sensitive electronics from voltage spikes.
• Overheating Protection: Prevents thermal damage to the device and surrounding components.
• Flame Retardant Housing: Reduces fire risk and complies with strict safety standards.

These features make the Shelly Pro 4PM suitable for both professional and home installations alike, ensuring reliable performance year after year.

Advanced Monitoring and Reporting

Unlike simpler smart devices, the Shelly Pro 4PM provides detailed, real-time metrics for each monitored channel. Track:

• Instantaneous and historical power consumption
• Voltage and current on each phase
• Cumulative energy (kWh)
• Power factor

Export data for billing analysis, energy audits, or sustainability reporting. Set up custom alerts for unusual consumption, enabling proactive maintenance and energy-saving actions.

Flexible Connectivity Options

The Shelly Pro 4PM supports Wi-Fi (2.4 GHz), Ethernet (RJ45), and Bluetooth-giving you multiple ways to connect, control, and monitor. LAN (Ethernet) is ideal for installations where a stable, high-speed connection is essential, while Wi-Fi and Bluetooth simplify setup and enhance reliability.

• Ethernet: Plug-and-play for reliable, high-speed access.
• Wi-Fi: Suitable for locations without wired networking.
• Bluetooth: Enables quick setup via the Shelly app, even without internet.

Comparison to Similar Devices

Here’s how the Shelly Pro 4PM stands out:

The Shelly Pro 4PM is clearly aimed at users seeking professional-grade monitoring, whole-home coverage, and advanced integration-far beyond what typical consumer smart plugs can offer.

The Future of Energy Management

As smart homes and buildings evolve, advanced energy monitoring like that provided by the Shelly Pro 4PM will become standard for efficient, sustainable living. By giving you precise control and transparency over your electricity use, this device helps bridge the gap between awareness and action-enabling real energy savings, cost reductions, and environmental benefits.

Whether you’re retrofitting an old home, automating a new build, or managing a commercial facility, the Shelly Pro 4PM is a powerful ally in the quest for a smarter, more efficient future.

Where and How to Buy

The Shelly Pro 4PM is available through authorized distributors, electrical wholesalers, and select online stores. Because this is a professional-grade device, always check for compatibility with your electrical system and consult a qualified electrician for installation.

Included in the box: Shelly Pro 4PM device, documentation, and installation guide.

Warranty: Typically two years from date of purchase, but always confirm with your vendor or the manufacturer’s website for current terms and conditions.

Key Takeaways

• The Shelly Pro 4PM is a professional energy monitor for smart homes and buildings, offering four-channel metering with detailed, real-time tracking.
• DIN rail mounting and advanced connectivity (Wi-Fi, Ethernet, Bluetooth) make installation flexible and future-proof.
• Seamlessly integrate with home automation systems and smart assistants for effortless control and automation.
• Built-in safety features and precise power monitoring help optimize energy usage, save money, and enhance safety.
• Ideal for homeowners, businesses, and facility managers who demand more than just remote control-real insight and action.

Upgrade your smart home or building infrastructure with the Shelly Pro 4PM, and take control of your energy future today.