EPH CONTROLS A17 1 Zone Timeswitch


Important: Keep this document
This timeswitch is designed to provide ON/OFF control for 1 zone.

Installation and connection should only be carried out by a qualified person and in accordance with national wiring regulations.

  • Before commencing any work on the electrical connections, you must first disconnect the timeswitch  from the mains. None of the 230V connections must be live until the installation has been completed and the housing is closed. Only qualified electricians or authorised service staff are permitted to open the timeswitch. Disconnect from mains supply in the event of any damage to any buttons.
  • There are parts that carry mains voltage behind the cover. The timeswitch must not be left unsupervised when open. (Prevent non specialists and especially children from gaining access to it.)
  • If the timeswitch is used in a way not specified by the manufacturer, its safety may be impaired.
  • Prior to setting the timeswitch, it is neccessary to complete all required settings described in this section. Never remove this product from the electrical baseplate. Do not use sharp tools to push any button.

This timeswitch can be mounted in the following ways:

  1. Directly wall mounted
  2. Mounted to a recessed conduit box


  1. Factory default settings
  2. Specifications & wiring

Factory default settings

  • Contacts: Volt free contact
  • Program: 5/2D
  • Backlight: On
  • Keypad: Unlocked
  • Clock type: 24 Hr Clock
  • Day-Light Saving

 Specifications & wiring

  • Power Supply: 200 – 240 Vac, 50-60 Hz, 8 VA
  • Ambient Temp: 0~45°C
  • Relative Humidity Range: 5-95 % RH
  • Contact Rating: 250 Vac 3(1)A
  • Program Memory
  • backup: 3 months
  • Battery: 3Vdc CR2032
  • Backlight: Blue
  • IP rating: IP20
  • Backplate: British System Standard
  • Pollution Degree: Pollution Degree 2
  • Rated Impulse Voltage: 2,500V as per EN 60730
  • Automatic Action: Type 1.C
  • Software: Class A
  • Ball Pressure Test Temperature: 70˚C

If mains voltage output is required, terminals L & 1 must be electrically linked. The cable link is provided with this timeswitch.

EPH Controls Ireland
technical@ephcontrols.com www.ephcontrols.com

EPH Controls UK
technical@ephcontrols.com www.ephcontrols.co.uk


Documents / Resources

EPH CONTROLS A17 1 Zone Timeswitch [pdf] Instruction Manual
A17 1 Zone Timeswitch, A17, 1 Zone Timeswitch, Timeswitch


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