Hard wired heavy duty Zigbee, Z-Wave or Shelly control switch (230/415v, 16A/32A options)
Hard wired heavy duty Zigbee, Z-Wave or Shelly control switch (230/415v, 16A/32A options)
Hard wired heavy duty Zigbee, Z-Wave or Shelly control switch (230/415v, 16A/32A options)

Hard wired heavy duty Zigbee, Z-Wave or Shelly control switch (230/415v, 16A/32A options)

  • Sale
  • £82.99

Versatile hard wired unit, designed to enable the automation of larger resistive loads with a choice of Zigbee, Z-wave or Shelly (via Wi-Fi or LAN Ethernet) control modules. A Wi-Fi unit is also available here. 

Control Module Options 

Zigbee
  • Controlled by the Tomzn TOB9Z-T module.
  • Zigbee gateway (smart hub) is required.
Z-Wave
  • Controlled by the Qubino Wave Pro 1 module.
  • Latest technology Z-Wave 800 Series.
  • Frequency band 868.4 MHz.
  • Security 2 authenticated for the highest level of security.
  • Compatible with over 4,000 other Z-Wave certified devices.
  • Z-Wave gateway (smart hub) is required.
  • See module manual for further information.
Shelly
  • Controlled by the Shelly Pro 1 module, designed for professional and commercial applications via Wi-Fi or ethernet.
  • Supplied with the option of Shelly via Wi-Fi, or WiFi + LAN network socket.
  • Compatible with all Shelly devices.
  • A Shelly gateway (smart hub) is required.
  • See module manual for further information.

 

Inductive vs Resistive Loads

Most automation controls use an integral relay, which is a cheap, compact way of controlling resistive loads. Resistive loads do not contain a motor and require a steady amount of current, even on start up e.g. lights.

In contrast, inductive loads contain a motor or coil e.g. power tools, pumps and refrigerators. When an inductive load is first powered up, it draws a much larger start up current, typically 2.5-3 times its normal operating current. For example a 500w drill may briefly draw 1250-1500w when it starts up. The main issue is actually caused when the relay contacts open to turn the tool off. The stored inductive energy in the motor coil is discharged, resulting in a damaging arc across the terminals, which can eventually cause the relay to fail. 

To overcome this issue, instead of using the relay within the Wi-Fi module to switch the load directly, our units connect the output to a high quality contactor, which then switches the load. Contactors work using the same principle as a relay , but they are much larger and far better suited to switching higher current inductive loads. The picture below shows the sheer size difference between a typical contactor (left) and relay (right); when it comes to switching inductive loads, contact size really does make a difference.

Contactor rating:

Unit Resistive Inductive
230v 16/32A 40A (AC-7a) 15A (AC-7b)
415v 16/32A 63A  (AC-7a) 20A (AC-7b)

 

Specification:

  • 16A unit - Robust IP66 rated enclosure, dimensions H125mm x W125mm x D100mm.
  • 32A unit - Robust IP55 Gewiss weatherproof DIN enclosure H180mm x W180mm x D98mm.
  • Unit must be hard wired by a competent person. This will require the enclosure to be drilled to fit suitable glands (not supplied).
  • Please note that the controller will not work if the appliance connected to it has a DoL motor starter or no-volt release switch (NVR). These commonly both have a start and stop switch. 

Manual:

  • Click here to download the manual.


Back to Hot tubs, spas and swimming pools