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Device identification
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Device name: Shelly Plus 2PM UL
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Device model: SNSW-002P15UL
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Device SSID: ShellyPlus2PM-XXXXXX
Short description
The Shelly Plus 2PM UL is a UL-certified small form factor 2-channel smart switch with power measurement and cover control, which allows remote control of electric appliances through a mobile phone, tablet, PC, or home automation system. It can work standalone in a local Wi-Fi network or it can also be operated through cloud home automation services.
The Shelly Plus 2PM UL can be accessed, controlled and monitored remotely from any place where the User has internet connectivity, as long as the device is connected to a Wi-Fi router and the Internet.
It can be retrofitted into standard electrical wall boxes, behind power sockets and light switches or other places with limited space.
The Shelly Plus 2PM UL has an embedded Web Interface which can be used to monitor and control the device, as well as adjust its settings.
Main applications
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Residential
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MDU (Multi Dwelling Units - apartments, condominiums, hotels, etc.)
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Light commercial (small office buildings, small retail/restaurant/gas station, etc.)
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Government/municipal
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University/college
Integrations
Amazon Alexa supported capabilities
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Yes
Google Smart Home supported traits
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Yes
Samsung SmartThings supported capabilities
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Yes
Simplified internal schematics
Device electrical interfaces
Inputs
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2 switch/button inputs on screw terminal: S1 and S2
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3 power supply inputs on screw terminals: 1 N (+) and 2 L (Ʇ)
Outputs
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2 relay outputs with power measurement on screw terminal
Add-on interface
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Shelly proprietary serial interface
⚠CAUTION! High voltage on the add-on interface when the Device is powered!
Connectivity
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Wi-Fi
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Bluetooth
Safety features
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Overheating protection
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Overvoltage protection
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Overcurrent protection
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Overpower protection
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Obstacle detection (cover mode)
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Safety switch (cover mode)
Supported load types
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Resistive (incandescent bulbs, heating devices)
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Capacitive (capacitor banks, electronic equipment, motor start capacitors)
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Inductive with RC Snubber (LED light drivers, transformers, fans, refrigerators, air-conditioners)
User interface
Inputs
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One (Reset) button
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Press and hold for 5 seconds to enable Device access point and Bluetooth connection.
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Press and hold for 10 seconds to factory reset the Device.
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Outputs
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LED (monocolor) indication
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AP (Access Point) enabled and Wi-Fi disabled:
1 secondON/ 1 secondOFF -
Wi-Fi enabled, but not connected to a Wi-Fi network:
1 secondON/ 3 secondsOFF -
Connected to a Wi-Fi network:
ConstantlyON -
Cloud is enabled, but not connected:
1 secondON/5 secondsOFF -
Connected to Shelly Cloud:
ConstantlyON -
OTA (Over the Air Update):
½ secON/ ½ secondOFF -
Button pressed and held for 5 seconds:
½ secondON/ ½ secondOFF -
Button pressed and held for 10 seconds:
¼ secondON/ ¼ secondOFF
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The list above starts with the initial device status and the lowest priority. Every next state cancels the previous one.
Specifications
| Type | Value |
|---|---|
| Physical | |
| Size (HxWxD): | 37x42x16 mm / 1.46x1.65x0.63 in |
| Weight: | |
| Mounting: | Flush mounting |
| Screw terminals max torque: | 0.25 Nm / 2.2 bin |
| Conductor cross section: | 1.0 to 2.5 mm² / 20 to 14 AWG |
| Conductor stripped length: | 5 to 6 mm / 0.20 to 0.24 in |
| Shell material: | Plastic |
| Color: | Black |
| Environmental | |
| Ambient temperature: | -20 °C to 40 °C / -5 °F to 105 °F |
| Humidity | 30 % to 70 % RH |
| Max. altitude | 2000 m / 6562 ft |
| Electrical | |
| Power supply: | 120 VAC, 50/60Hz |
| Power consumption: | < 1.4 W |
| Output circuits ratings | |
| Max switching voltage AC: | 120 V |
| Max switching voltage DC: | N/A |
| Max switching current AC: | 8 A (per channel), 16 A (total) |
| Max switching current DC: | N/A |
| Sensors, meters | |
| Internal-temperature sensor: | Yes |
| Voltmeter (AC) | Yes |
| Ammeter (AC) | Yes |
| Radio | |
| RF band: | 2400 - 2495 MHz |
| Max. RF power: | <20 dBm |
| Wi-Fi protocol: | 802.11 b/g/n |
| Wi-Fi Range: | Up to 30 m / 100 ft indoors and 50 m / 160 ft outdoors |
| Bluetooth Protocol: | 4.2 |
| Bluetooth Range: | Up to 10 m / 33 ft indoors and 30 m / 100 ft outdoors |
| MCU | |
| CPU: | ESP32-U4WDH |
| Flash: | 4 MB |
| Firmware capabilities | |
| Schedules: | 20 |
| Webhooks (URL actions): | 20 with 5 URLs per hook |
| Scripting: | Yes |
| MQTT: | Yes |
| CoAP: | No |
Basic wiring diagrams
 Dual-channel switch mode, AC power supply |  Cover mode |
Legend
| Terminals | Wires | ||
|---|---|---|---|
| N | Neutral terminal | N | Neutral wire |
| L | Live (120 VAC) terminal | L | Live (120 VAC) wire |
| O1, O2 | Load circuit output terminals | | |
| S1, S2 | Switch input terminals | | |
Web Interface guide
Read the Shelly Plus 2PM, Plus 2PM UL web interface guide
