Device image(s)

Device identification
- Device name: SSR Add-on (Accessory for The Pill by Shelly)
- Device model: N/A
Short description
Dual-channel control of DC Loads up to 30V.
Controls two independent DC loads up to 30V / 300mA per channel using galvanically isolated solid-state relays for enhanced usability.
Requires: 5-Terminal Add-on for connection with The Pill
Main feature
Isolate and control DC loads: Use to control two separate DC Loads, max 30V / 300 mA each.
Device electrical interfaces
Inputs
- 1 Configurable Digital Input/Output (logic-level 3.3V) - IO3
Outputs
- 2 potential-free contacts solid-state relay outputs - LOAD1 and LOAD2
Power
- Optional Power terminals - 5V, GND
Addon interface
- Interface connector for 5-Terminal Add-on for connection with The Pill
Detailed inputs and outputs description

| Symbol | Description | Usage |
|---|---|---|
| LOAD1 | Channel 1 output | max. 30 V⎓ / 300 mA |
| LOAD2 | Channel 2 output | max. 30 V⎓ / 300 mA |
| GND | Ground | Reference ground for connected sensors or power supply |
| IO3 | Input/Output (logic-level 3.3V) | Configurable for: Digital Input or Digital Output |
| 5V | 5V Power | Power output for connected peripheral or 5V Power for The Pill |
Specifications
Physical
| Property | Value |
|---|---|
| Size (HxWxD) | 36 mm × 31 mm × 11.5 mm |
| Weight | 12 g |
| Shell color | Black |
Environmental
| Property | Value |
|---|---|
| Ambient working temperature | 0 to 40 °C / 32 to 105 °F |
| Storage temperature | -20 °C to 40 °C / -5 °F to 105 °F |
| Humidity | 30 % to 70 % RH |
| Max. altitude | 2000 m / 6562 ft |
Electrical
| Property | Value |
|---|---|
| Power consumption | < 0.6 W |
| Max. switching voltage | 30 V⎓ |
| Max. switching current | 300 mA |
Basic wiring diagrams
