350B-1 Standard Push Button Timer – 2 Wire

Standard Push Button Timer – 2 Wire 350B-1: Product Description

The Standard Push Button Timer 2 Wire 350B-1 is an energy saving device to switch loads for a pre-selected time period. It fits easily into a British Standard back box of 25mm depth and does not require a neutral. The timer can be interlinked in parallel with other Elkay timers to create multiply switching points. It can also replace an existing switch at the switch point to provide energy saving functionality by timing lighting off to avoid unnecessary power usage.

A Capacitor must be used in the circuit when switching low wattage loads such as Fluorescent, compact fluorescent, and LED’s.

Standard Push Button Timer – 2 Wire 350B-1: Key Features

  • 10A all load types including resistive, inductive, fluorescent and LED lighting
  • Can be retrofitted into any type of lighting wiring circuit
  • Can be interlinked with other standard push button timers
  • Time setting from 2 mins to 1 hour
  • 2 wire (Live and switch live)
  • A 24 hour uninterrupted supply is required

Standard Push Button Timer – 2 Wire: Typical Applications:

  • General purpose timer for use with lighting loads
  • Suitable for retrofit into any type of circuit
  • Suitable for use in any area where control will help reduce energy usage

Standard Push Button Timer – 2 Wire 350B-1: Technical Details

  • 240V a.c. / 50Hz
  • 10A all load types
  • CE Marked
  • Complies with BS EN 60669-1, 60669-2-1, 60669-2-3.
  • 3875B-1 – Power Consumption 0.4W
  • 350B-1 – Power Consumption 0.7W
  • Flame Retardant ABS material
  • RoHS compliant

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ELKAY Timer & Sensor instructions


Part No. Description Configuration Finish Rating
350B-1 Standard Push Button Timer 2 wire Master 2 Wire* for lighting only White 16A-240V

*PFCC-1 Capacitor will often be required when switching certain types of load
**Activator unit must be used with illuminated range for multiway switching and connected with 3 Core cables to Master unit.

Standard Pushbutton / Standard PIR Timer fitting – 2 Wire (for lighting only)