Shelly Pill SSR Add-on - Dual-channel solid-state relay for DC loads

The Shelly Pill SSR Add-on is a dual-channel solid-state relay module that allows for the control of two independent DC loads in combination with the Shelly The Pill. Important: For operation, the Shelly The Pill and the 5-terminal add-on are also required, as the SSR add-on connects to the Pill via this interface module. Each channel can switch loads of up to 30 V and 300 mA, making the module ideal for LED strips, small fans, solenoid valves, and other low-voltage consumers. The galvanically isolated solid-state relays ensure safe and noise-free switching without mechanical wear. In addition to the two relay outputs, the add-on features a configurable digital input/output with 3.3 V logic level for further automation possibilities. The compact module, with dimensions of 36 × 31 × 11.5 mm and a weight of only 12 g, can be integrated space-savingly into enclosures and control cabinets. Control is via the Shelly Smart Control App and can be automated based on sensor data, schedules, or scenes. The SSR add-on operates in an ambient temperature range of 0 to 40 °C with a power consumption of less than 0.6 W.

Recommended Accessories:

• Shelly The Pill Compact Wi-Fi Bluetooth Sensor Hub with USB-C
• Shelly Pill 5-Terminal Add-on Interface Module for Sensors and I/O Expansion

Features:

• Requires the 5-terminal add-on to connect with the Shelly The Pill, both components are available separately.
• Two independent SSR channels allow the control of one DC load each, with up to 30 V and 300 mA.
• Galvanically isolated solid-state relays ensure safe, noise-free, and wear-free switching.
• Additional configurable I/O port with 3.3 V logic levels for digital input or output functions.
• Compact design with only 36 × 31 × 11.5 mm allows for integration in tight installation spaces.
• Automation via the Shelly Smart Control App based on schedules, scenes, or sensor data.

Application Examples:

• Automatic control of enclosure fans based on temperature readings
• Switching of LED status indicators and signal lamps in automation projects
• Actuation of solenoid valves for irrigation systems according to schedule
• Control of small DC motors and actuators in DIY projects
• Triggering of relays and contactors in external control systems

Documentation:

• Shelly Knowledge Base
• Shelly Forum

Technical Specifications:

• Manufacturer: Shelly
• Manufacturer SKU: Shelly_The_Pill_SSRA
• EAN: 3800238073589
• Relay Type: Solid-State Relay (SSR), galvanically isolated
• Number of Channels: 2
• Maximum Switching Voltage: 30 V DC per channel
• Maximum Switching Current: 300 mA per channel
• Outputs: 2× potential-free SSR contacts (LOAD1, LOAD2)
• Digital I/O: 1× configurable input/output (IO3), 3.3 V logic level
• Power Supply: via 5-terminal add-on from the Shelly The Pill
• Power Consumption: < 0.6 W
• Operating Temperature: 0 to +40 °C
• Storage Temperature: -20 to +40 °C
• Humidity: 30–70 % RH
• Maximum Altitude: 2000 m
• Case Color: Black
• Product Dimensions: 36 × 31 × 11.5 mm
• Product Weight: 12 g
• Package Dimensions: 130 × 180 × 22 mm
• Gross Weight: 17 g

Scope of Delivery:

• 1× Shelly Pill SSR Add-on