Shelly Pro Relay Comparison
An overview and comparison of Shelly Pro relay models.
Officially distributed in South Africa by:
NOLOGY
Epsidon Technology Holdings
Copyright © Nology (Pty) Ltd Errors and Omissions Excepted
Product Specifications Comparison
| Specification | Shelly Pro 1PM | Shelly Pro 2PM | Shelly Pro 3 | Shelly Pro 4PM | Shelly Pro Dimmer 2PM |
|---|---|---|---|---|---|
| Product Image | A compact, red DIN-rail mountable relay module with screw terminals and indicator LEDs. | A compact, black DIN-rail mountable relay module with screw terminals and indicator LEDs. | A black DIN-rail mountable relay module featuring a small display screen, navigation buttons, and screw terminals. | A black DIN-rail mountable device with a digital display screen, control buttons, and screw terminals. | A compact, green DIN-rail mountable relay module with screw terminals and indicator LEDs. |
| # Channels / Gangs / Switches | 1 | 2 | 1 | 4 | 2 |
| Connectivity | Wi-Fi + Bluetooth + LAN | Wi-Fi + Bluetooth + LAN | Wi-Fi + Bluetooth + LAN | Wi-Fi + Bluetooth + LAN | Wi-Fi + Bluetooth + LAN |
| Power Supply | 110-240 VAC | 110-240 VAC | 110-240 VAC | 110-240 VAC | 110-240 VAC |
| Conductor cross section | 0.5 to 2.5 mm² | 0.5 to 2.5 mm² | 0.5 to 2.5 mm² | 0.5 to 2.5 mm² | 0.5 to 2.5 mm² |
| Ambient temperature | -20 °C to 40 °C | -20 °C to 40 °C | -20 °C to 40 °C | -20 °C to 40 °C | -20 °C to 40 °C |
| Power consumption | <3W | <3W | <3W | <3W | <2W |
| Max switching voltage AC | 110-240 VAC | 110-240 VAC | 110-240 VAC | 110-240 VAC | 110-240 VAC |
| Max switching voltage DC | N/A | N/A | 30VDC | N/A | N/A |
| Max switching current AC | 16A | 16 A per channel, 25 A total | 16A per Channel 48A total | 16 A per channel, 40 A total | 1.1A / 200W Max per channel |
| Max switching current DC | N/A | 10A | 16A per Channel 48A total | N/A | N/A |
| Dry Contact | ❌ | ✔️ | ❌ | ❌ | ❌ |
| Power Monitoring | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ |
| Add-On | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ |
| Roller Shutter Function | ❌ | ✔️ | ❌ | ❌ | ❌ |
| Dimmable | ❌ | ❌ | ❌ | ❌ | ✔️ |
| No Neutral install | ❌ | ❌ | ❌ | ❌ | ❌ |
| Overvoltage Protection | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ |
| Overheating Protection | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ |
| Overcurrent protection | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ |
| Overpower protection | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ |
| Overload Protection | ❌ | ✔️ | ❌ | ❌ | ❌ |
| Size | 94mm x 19mm x 69mm ±0.5 mm | 94mm x 19mm x 69mm ±0.5 mm | 96mm x 53mm x 59mm ±0.5 mm | 96mm x 53mm x 59mm | 94mm x 19mm x 69mm ±0.5 mm |
| Knowledge base | Shelly Pro 1PM | Shelly Pro 2PM | Shelly Pro 3 | Shelly Pro 4PM | Shelly Pro Dimmer 2PM |
| Typical use case | Measure Power / Switch Appliances | Measure Power / Switch 2x Appliances | Gate or boom motors / Switch 3x circuits | Measure Power / Switch 4x Appliances | Control dimmable lights / 2 x channels |
