Shelly 2PM Gen3 (4 Pack)

Description

The Shelly 2PM Gen3 is the dual-channel, powerhouse version of the Gen3 lineup. While the “1” series manages a single circuit, the “2” series features two relays, allowing it to control two separate lights or a single bi-directional motor (like a roller shutter).

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The “PM” once again stands for Power Monitoring, and in this model, it measures the consumption of both channels independently.

Dual Modes: Switch vs. Cover

The Shelly 2PM Gen3 is essentially two devices in one, depending on how you configure it in the app:

• Switch Mode: It acts as two independent smart switches. You can wire it to two different sets of lights or appliances on the same electrical phase and control/monitor them separately.
• Cover (Roller Shutter) Mode: It acts as a controller for motorized blinds, curtains, awnings, or garage doors.
• Interlock: In this mode, the device ensures both relays can’t be “on” at the same time (which would damage a motor trying to go up and down simultaneously).
• Slats Angle Control: New for Gen3/Gen4, it can precisely tilt the slats of Venetian blinds to let in specific amounts of light.

Key Improvements in Gen3

Like the rest of the Gen3 family, this model replaces the “Plus 2PM” with upgraded hardware:

• ESP-Shelly-C38F Chip: Faster processing and 8MB of memory.
• Matter-Ready: It is designed to be upgraded to Matter, allowing it to work natively across all major smart home ecosystems.
• Virtual Components: Allows you to create “virtual” switches or buttons within the device to trigger complex automations without extra hardware.
• Improved Terminals: The screw terminals are more durable and can accommodate slightly thicker wiring than previous generations.

Technical Specifications

Use Cases

• Smart Lighting: Control the “Main Light” and the “Accent Light” in a room using a single hidden device.
• Motorized Blinds: Fully automate your window coverings to open at sunrise and close at sunset.
• Energy Management: Track exactly how much energy your washer and dryer are using if they are on the same circuit (under 16A total).

A Note on Wiring

Unlike the Shelly 1, the 2PM does not have dry contacts. It is a “Wet Contact” device, meaning the power you put into the device (the “Live” wire) is the same power that is sent out to the lights or motor.

Note: Whilst the Shelly configuration is mostly DIY, any electrical work must be done by a registered electrical contractor and we recommend Straton Electrical.