NETIO PowerBOX 3Px is a professional electrical socket device with 3 outputs and LAN connectivity. Each output socket can be separately switched on or off over the web interface. Integration into third-party systems using various protocols (JSON, Modbus/TCP, SNMP, MQTT-flex, Telnet, ...) is easy thanks to the open API. With the NETIO Cloud service, the outputs can be controlled from anywhere. The NETIO Cloud service, provided for a fee, uses SSL security and servers in Europe.

NETIO PowerBOX 3Px can be configured with a web browser (allows output control), controlled from Mobile App, connected to NETIO Cloud or use Open API.

PowerBOX 3Px is a smart LAN power socket in the form of an extension cable (power strip). A RJ45 Ethernet cable is used to connect to the LAN.

PowerBOX 3Px is a common product name for different versions of electrical sockets - models 3PF (Type F - schuko), 3PE (Type E - France) and 3PG (Type G - United Kingdom).


Professional product

NETIO PowerBOX 3Px is suitable for industrial applications. The product works in a wide temperature range (–20°C to +65°C), supports firmware upgrades over the web, remembers the last socket states before being powered off, and its relays switch at zero voltage.


Typical applications

  1. Each electrical socket can be separately switched on or off from the product’s web interface.
  2. The outputs can be controlled with an Open API (JSON, Modbus/TCP, SNMP, MQTT-flex, Telnet, ...)
  3. The device can work with various third-party programs and applications (NETIO Drivers).
  4. The power sockets can be controlled using the NETIO Mobile 2 app as long as the app is connected to the same network.
  5. The power sockets device can be connected to the NETIO Cloud service (for a fee).


Open API: Supported M2M protocols

The open API can use one protocol at a time, chosen from among the supported M2M protocols:

The SNMP protocol can be always used in parallel to other APIs.

Regardless of the Open API used, the PowerBOX 3Px can be always controlled from its web interface and from the NETIO Cloud service. The customer may use one Open API protocol and the NETIO Cloud service simultaneously.


Useful links:

Ask for a price or technical parameters

Documents to download

Video Flyer
Flyer PDF
Manual PDF (CE)




  • IT infrastructure: Remote restart
  • AV equipment: Multimedia equipment switched on/off from a central system or a multimedia control panel
  • Lighting: Controlling additional lighting from a central system
  • Conferencing rooms: Powering off unused equipment
  • Digital signage or AV (Audio Video): NETIO supports drivers for most systems – NETIO Drivers.

>> NETIO usage examples


PowerBOX 3Px  (3PF / 3PE / 3PG)

“3Px” is an overall designation of products with 3 different types of electrical sockets offered by the NETIO products company.

When ordering, please choose one of these three types:

  • PowerBOX 3PF
    DE (Type F – Schuko) socket is used in most of the continental Europe and can be used in Russia.
  • PowerBOX 3PE
    FR (Type E) socket with an earth pin is needed in France, Belgium, Czech Republic, Slovakia and Poland.
  • PowerBOX 3PG
    (Type G) socket and plug for the United Kingdom, Ireland and other countries.





NETIO PDUs have implemented HTTPs security.
The HTTPs is supported both for the WEB interface and for Open API protocols (JSON, XML). A customer certificate can be used.



The product can be connected to NETIO Cloud. Control hundreds of outputs from a single web screen. NETIO Cloud is an ideal solution for remote control and restarting. The NETIO Cloud service is a paid service.

  • All devices produced by the NETIO products company can be connected to NETIO Cloud.
  • Thanks to the included “Welcome credit”, the service can be used at no cost for the first 3 years.
  • Devices connected to the service can be controlled securely from anywhere over the Web (HTTPs).
  • NETIO Cloud can be used in parallel with another Open API protocol.
  • Communication with the Cloud service is secured (port 8883 - MQTTs - TLS)
  • NETIO Cloud uses a separate Open API (MQTTS protocol) to control all devices linked to a given user account. 

>> More about  NETIO Cloud 




Industrial product quality

NETIO sockets are made with quality in mind. Each unit includes a set of supporting functions to ensure reliability and long service life of the product in real-life conditions.

  • Open M2M API
  • Wide operating temperature range (–20°C to +65°C)
  • PowerUp state – defined output state after power-up
  • PowerUp delay (outputs switched on after a delay)
  • Firmware upgradeable over the web, backwards compatibility
  • IOC – Independent Output Control
  • ZVS – Zero Voltage Switching


ZVS (Zero Voltage Switching)

An important feature of the NETIO PowerBOX is ZVS (Zero Voltage Switching).

ZVS controls the exact time when the mechanical relay contacts close and open. The relay contacts switch the output on or off when the voltage crosses the zero level. 

  • In the long term, ZVS support reduces the product failure rate due to internal relay damage.
  • Since the relay switches when the sinusoidal voltage waveform crosses the zero level, negative effects of inrush current are significantly reduced.
  • The ZVS and PowerUp delay functions reduce the chance of circuit breakers tripping when power is restored after an outage.
  • ZVS extends the lifetime of connected equipment, especially in case of frequent on/off switching of devices that are not designed for that (such as switching power supplies).

>> Glossary: More about ZVS 


Power-Up state

User can define output state after power restoring - PowerUp state

For some applications, it is important to set the power socket state immediately after the device is powered on (or the power is restored after a failure). With some machines it is important to avoid momentary switch-on or switch-off. This parameter therefore defines the behavior of the 110/230V output power socket before the standard communication with a master system starts to work.

  • On
  • Off
  • LAST state restores the last state before the power was disconnected

>> Glossary: PowerUp state



WatchDog Ping

Device is equipped with WatchDog PING (IP WatchDog) functionality.
The WatchDog function monitors PING (ICMP) responses on the network. The monitored device (router, IP video camera, …) can be easily restarted without human intervention. The function can be configured over the web interface.
The PING based WatchDog can control any device output.

>> Glossary: WatchDog PING (IP WatchDog)



Scheduler (timed switching of individual outlets)

With the Scheduler (timer) function, each output can be individually switched on or off at specified times and days of week. The switching times are easily configured in a graphical interface.
  • Each output can have its own schedule
  • When a schedule is active, outputs can still be controlled with NETIO Cloud, the web interface and Open API
  • Scheduler functionality can be enabled/disabled (not edited) for each output from the NETIO Mobile 2 app.
  • Scheduler does not need an internet connection.
    However, a time source is needed – provided over the internet or, for example, by a local ADSL / WiFi router.
  • For special usage the Scheduler can be combined with PAB (Power Analyze Blocks):
    • Switching time is based on current sunrise/sunset based on your location
    • Whatever happend, defined output can be switched off on defined time (midnight for example).
    • Ask for more..

 >> More information about the Scheduler


Mobile app controlled power socketsMobile App

This device can controlled from mobile App NETIO Mobile 2 (Android & iOS).
  • LAN: NETIO Mobile 2 can control all outputs of devices within local LAN (WiFi).
  • Cloud: User account on the NETIO Cloud service can be connected to the mobile app.
You can do with mobile app
  • Control individual power outputs – switch ON, switch OFF, RESET
  • Read power consumption data (A, W, Wh), if this one output (device) supports energy metering

  • QR code for NETIO Mobile 2 AndroidQR code for NETIO Mobile 2 iOSActivate / deactivate the week Scheduler function per each output
  • Sorting of outputs within groups (by function or location)
  • Output grouping – default group per one device can be changed individualy
  • Group control - Switch the whole group of outputs On / Off
  • Group control - Activate / deactivate the week Scheduler function for each output in whole group
  • Change output / device name (visible in the mobile application only)
  • Add multiple devices to the mobile app.
  • LAN discover: Search your LAN/Wifi network for NETIO devices.


>> NETIO Mobile 2


General properties

LAN WiFi IQRF Web NETIO Cloud WatchDog Scheduler Mobile App Open API Max. current
per socket
PowerBOX 3PF 3 x DE
(Type F)
ZVS - 1 - - Yes Yes Ping Yes Android + iOS 10 protocols 230V / 16A
PowerBOX 3PE 3 x FR
​(Type E)
ZVS - 1 - - Yes Yes Ping Yes Android + iOS 10 protocols 230V / 16A
PowerBOX 3PG 3 x UK
​(Type G)
ZVS - 1 - - Yes Yes Ping Yes Android + iOS 10 protocols 230V / 13A
PowerBOX 4KF 4 x DE
(Type F)
ZCS 4 1 - - Yes Yes Ping + Power Yes Android + iOS 10 protocols 230V / 16A
PowerBOX 4KE 4 x FR
​(Type E)
ZCS 4 1 - - Yes Yes Ping + Power Yes Android + iOS 10 protocols 230V / 16A
PowerBOX 4KG 4 x UK
​(Type G)
ZCS 4 1 - - Yes Yes Ping + Power Yes Android + iOS 10 protocols 230V / 13A
PowerCable REST 101x 1
(5 types)
ZCS 1 - Yes - Yes Yes Ping + Power Yes Android + iOS 10 protocols 230V / 10-16A


Technical specifications


  • Lua support: No
  • Scheduler function: Yes
  • IP WatchDog function: Yes
  • Sending e-mails: No
  • Event log: Yes (web)
NETIO PowerBOX 3Px is easy to be installed to the wall using DIN rail
  • Power input: The “x” in the “3Px” model number specifies the plug type
  • Mechanical Power Switch: No
  • Power output: The “x” in the “3x” model number specifies the socket type (3 sockets)
  • Number of controlled outputs: 3
  • Electrical measurements: No
  • Number of metered outputs: 0
  • Available electrical socket versions:
    • Type F – DE schuko – PowerBOX 3PF (230V / 16A)
    • Type E – FR – PowerBOX 3PE (230V / 16A)
    • Type G – UK – PowerBOX 3PG (230V / 13A)
  • Internal consumption: 1-2 W


  • SPD – surge protection: Yes, type 3
  • Switching element: relay SPST-NO, ZVS
  • ZVS (Zero Voltage Switching): Yes
  • IOC (output state independent from FW updates): Yes
  • PowerUp state of outputs: On / Off / LAST state


  • Mechanical characteristics: Aluminium profile – 320 x 62 x 62 mm + cable 1.6 m
  • Protection: IP30
  • Sound output: No
  • Temperature range: -20°C to +65 °C
  • Designed and manufactured: European Union (Czech Republic, Prague)



Expand all

Is it possible to specify in which state the output (power socket) will be after power-up?

Yes. When the PowerBOX is powered up, all outputs are set according to the PowerUp Init configuration (On / Off / LAST value). The parameter can be set in the web interface in the detailed configuration for each output.

I forgot the password, how can I reset the product to factory defaults?

To reset the product to factory defaults, press and hold the button next to the RJ45 jack. Keep the button pressed and plug in the product. Still keep the button pressed. About 12 seconds after powering up, the yellow LED flashes 3 times and factory default settings are restored (Load to defaults).

For the current procedure, see the supplied QIG (Quick Installation Guide) for the product. It is available for download at this page as well as included in the product package.

The NETIO Mobile app cannot find the NETIO PowerBOX 3Px.

For Android mobile devices, please upgrade to NETIO Mobile 2. For iOS mobile devices, NETIO mobile app upgrade is not available yet.

Can PowerBOX restart a device remotely?

Yes, the “Short OFF” command (accessible for instance in the PowerBOX 3Px web interface) can switch the power to the device off for e.g. 5 seconds and then switch it on again automatically.

Typical applications include the remote restart function, where the user needs to send, over the Web or via the URL API, a command that momentarily switches the output off and then switches it back on. This is typically used to restart a LTE / WLAN modem; the PowerBOX controls the power to the modem.

Can PowerBOX switch on an output at a specified time?

The Scheduler (calendar) function is being developed. It will be available at the end of 2020.

If Scheduler function is not available in your device, update your firmware to highest possible version.

Is it possible to control PowerBOX 3Px using an IoT cloud?

Yes. PowerBOX 3Px includes an open API. We are continuously publishing ANxx (Application Notes) that describe how to connect the product to various third-party systems.

What is the difference between MQTT and MQTT-flex?

MQTT-flex is a NETIO extension of the standard MQTT protocol. The extension uses a configuration text file to specify the MQTT message structure, the MQTT broker address where messages are sent, and the periodicity. In this way, a complete configuration of the MQTT communication can be transferred in a single text file.



Manual CS
Manual DE
Quick Installation Guide: 
Guide CS
Guide DE

Photo and video

Product comparison

  Connection Switched
Inputs NFC Web


Mobile App HTTPs Open APIs
2xLAN 4xC13 4 ZCS RS-232 - Yes Yes Lua scripts Ping Yes iOS

15 protocols

LAN 4xC13 - ZVS - - Yes Yes Condition
& Rules
Ping Yes iOS 
- 10 protocols
LAN 4xC13 4 ZCS 1xDI (S0) - Yes Yes Condition
​& Rules
Ping + Power Yes iOS 
- 10 protocols
PowerPDU 8QS LAN 8xC13 1+1 ZVS 1xDI (S0) - Yes Yes Condition
​& Rules
Ping + Power Yes iOS 
- 10 protocols
PowerPDU 8KS LAN 8xC13 8 ZCS 1xDI (S0) - Yes Yes Condition
​& Rules
Ping + Power Yes iOS 
- 10 protocols
2+2 2 ZCS / - 2xDI
- Yes Yes Condition
​& Rules
Ping + Power Yes iOS 
- 10 protocols
PowerBOX 3Px LAN 3x - ZVS - - Yes Yes Condition
​& Rules
Ping Yes iOS 
- 10 protocols
PowerBOX 4Kx LAN 4x 4 ZCS - - Yes Yes Condition
​& Rules
Ping + Power Yes iOS 
- 10 protocols
PowerBOX 4Kx WiFi


4x 4 ZCS - - Yes Yes Condition
​& Rules
Ping + Power Yes iOS 
- 10 protocols
PowerCable REST WiFi 1x 1 ZCS - Yes Yes Yes Condition
​& Rules
Ping + Power Yes iOS 
- 10 protocols
PowerCable 2PZ LAN
2x - ZVS - - Yes Yes Condition
​& Rules
Ping Yes iOS 
- 10 protocols
PowerCable 2KZ LAN
2x 2 ZCS 2xDI
- Yes Yes Condition
​& Rules
Ping + Power Yes iOS 
- 10 protocols



Available models

PowerBOX 3PF
LAN electrical sockets – 3 outputs, 230V / 16A – Type F – DE Schuko is used in most European countries
PowerBOX 3PG
LAN electrical sockets – 3 outputs, 230V / 13A – Type G – UK is used in the United Kingdom, Ireland, Malaysia, ...
PowerBOX 3PE

LAN electrical sockets – 3 outputs, 230V / 16A – Type E – FR is used in France, Belgium, Czech Republic, Slovakia, Poland.

Optional accessory NETIO MK1 PowerBOX

Metal bracket for 1 piece NETIO PowerBOX 3Px on the wall contains two pieces of metal.


Lan ports: 
LAN ethernet switch: 
WiFi AP mode: 
Blue Tooth 4.0 LE: 
Serial port (RS-232): 
SMS Alerts: 
Email alerts: 
Mobile App: 
Scheduler (Chytrý kalendář): 
IP Watchdog Hearbeat): 
Warranty 2: 
6 Months
Protection 2: 
Rack montage: 
Product dimensions: 
340 x 58 x 90 mm
Product weight: 
1,18 Kg
Shipping package: 
420 x 65 x 130 / 1350 g
SNMP v1: 
SNMP v3: 
User certificates: 
MS Azure (MQTT): 
Power Output: 
4x DE (Type F - Schuko)
Power Input: 
230V AC
Power Output sockets: 
Power Input: 
Europlug - cable 1m
Power In max current: 
Max one socket current: 
Power fuse: 
External, mechanical
Current meter: 
Metered values: 
Energy meter: 
XML interface accessible in LUA: 
SNMP interface accessible in LUA: 
Web buttons accessible in LUA: 
CGI interface accessible in LUA: 
PING interface accessible in LUA: 
RS-232 accessible in LUA: 
Online demo IP address:
Show download for mobile: 

Ask for a price or technical parameters

For device testing use name/password demo/demo