Why Choose the Finder 14.11.8.230.0300 Multifunction Staircase Timer?
The Finder 14.11.8.230.0300 is a 16 A multifunction electronic staircase timer designed for automatic lighting control in residential, commercial and industrial buildings. Part of the Finder 14 Series, this DIN rail-mounted timer combines adjustable time-delay operation, centralised switch-off functionality and zero-crossing load switching to provide efficient and convenient lighting management.
Operating from a 110–240 V AC supply, the Finder 14.11.8.230.0300 features a single normally open (SPST-NO) output contact rated at 16 A and 250 V AC. Its adjustable timing range of 30 seconds to 20 minutes makes it suitable for controlling staircase, corridor and communal lighting without requiring occupants to switch lights off manually.
The Finder Type 14.11 provides four selectable operating functions: staircase timer, timing step relay, step relay and permanent light ON. Its dedicated centralised switch-off capability allows lighting to be switched off from a common control point, making it particularly useful in apartment buildings, hotels, offices and shared facilities.
Key Advantages
- 16 A output contact: Suitable for switching appropriately rated lighting circuits.
- Adjustable 30-second to 20-minute delay: Allows lighting duration to be matched to the installation.
- Four selectable functions: Provides flexible staircase and impulse-switching control.
- Centralised switch-off: Enables a common OFF command for connected lighting control systems.
- Zero-crossing switching: Helps reduce electrical stress when switching compatible AC lighting loads.
- 110–240 V AC supply: Supports common building electrical supply voltages.
- 3-wire and 4-wire compatibility: Simplifies integration into different staircase lighting installations.
- Automatic wiring recognition: Supports compatible 3-wire and 4-wire configurations.
- Illuminated push-button compatibility: Allows use with suitable illuminated wall switches.
- LED status indication: Provides convenient visual operating feedback.
- DIN rail mounting: Suitable for electrical distribution boards and control cabinets.
- Cadmium-free contact material: Supports modern electrical equipment material requirements.
- Permanent light ON function: Allows continuous illumination when required.
Key Features
- Finder 14 Series electronic staircase timer.
- Type 14.11 multifunction timer with centralised switch-off.
- Four selectable operating functions.
- Staircase timer (BE) with retriggerable timing.
- Timing step relay (IT) with timed output and manual interruption.
- Step relay (RI) with impulse-operated switching.
- Permanent light ON operating mode.
- Adjustable timing range: 0.5–20 minutes.
- Single normally open output: 1 NO / SPST-NO.
- 16 A rated output current.
- 250 V AC rated contact voltage.
- 110–240 V AC nominal supply.
- 50/60 Hz supply frequency.
- Zero-crossing load switching.
- Compatible with 3-wire and 4-wire systems.
- Front-mounted rotary function selector.
- Front-mounted timing adjustment trimmer.
- LED operating status indicator.
- Screw terminal connections.
- 35 mm DIN rail mounting.
- IP20 protection rating.
Flexible Staircase Lighting Control with Centralised Switch-Off
The Finder 14.11.8.230.0300 provides four operating functions selected using the front-mounted rotary switch. Its timing adjustment trimmer allows the required delay to be set between 30 seconds and 20 minutes, providing flexibility for short corridors, multi-storey staircases and communal lighting areas.
In staircase timer (BE) mode, pressing a connected push-button closes the output contact and starts the preset timing period. Additional push-button operations during the timing period restart the delay, keeping the lights illuminated for the full selected duration after the most recent activation. The output opens automatically when the delay expires.
In timing step relay (IT) mode, the first push-button impulse closes the output and starts the timer. A subsequent impulse during the timing period can switch the output off before the delay expires. This provides a convenient combination of automatic switch-off and manual control.
The step relay (RI) function operates as an impulse relay, changing the output state each time the control push-button is pressed. The permanent light ON setting holds the output contact closed for applications requiring continuous illumination, such as cleaning or maintenance activities.
A distinguishing feature of the Finder 14.11 is its centralised switch-off capability. In the applicable operating modes, an OFF command held for more than 3 seconds forces the output to the off state. This allows lighting control to be coordinated from a central control point rather than relying solely on individual local push-buttons.
The timer uses zero-crossing load switching, which switches compatible AC loads near the voltage zero crossing to help limit electrical stress. Its 16 A output contact supports suitable lighting circuits, including LED loads within the manufacturer's specified 600 W rating. The actual permissible load must also account for lamp-driver characteristics and switching inrush current.
Designed for 35 mm DIN rail installation, the Finder 14.11.8.230.0300 supports both 3-wire and 4-wire staircase lighting systems. Automatic recognition of compatible wiring arrangements helps simplify installation and replacement in suitable existing electrical systems.
Typical Applications
- Residential staircase lighting automation.
- Apartment building communal lighting.
- Commercial office stairwell lighting.
- Hotel corridors and shared access areas.
- School and educational building staircases.
- Public building corridor lighting.
- Multi-storey residential common areas.
- Basement and storage-area lighting.
- Building maintenance lighting control.
- Lighting installations requiring centralised switch-off.
- Push-button-controlled lighting circuits.
- Automatic LED lighting control within rated load limits.
- Electrical distribution boards and building control panels.
- Replacement of compatible multifunction staircase timers.
