Time relay | timer | SCHUKO | 7 days/24 hours | programmable | digital | 8A | 1800W | 230V | IP20 | Orno | OR-PRE-428(GS) | 5902560323122

Time relay | timer | SCHUKO | 7 days/24 h | programmable | digital | 8 A | 1800 W | 230 V | IP20 | Orno OR-PRE-428(GS)

Orno OR-PRE-428(GS) – digital programmable plug-in timer (time relay) designed to automatically switch electrical appliances connected to a power outlet on and off according to a preset schedule. The device plugs directly into a 230 V mains socket and has an earthed SCHUKO output socket (2P+E). The timer supports 10 time programs, daily and weekly operating cycles and a countdown function. The LCD display shows the current time and date, while the integrated rechargeable Ni-MH battery is part of the device's internal electronics. Maximum connected load – 1800 W, rated current – 8(1) A, minimum programming interval – 1 minute. The IP20 timer is intended for use in dry indoor areas.

Key point:
Electrical appliances do not always need to remain switched on around the clock. The digital Orno OR-PRE-428(GS) timer allows the power supply to be controlled automatically according to a selected daily or weekly schedule. Using 10 programmable time settings, an individual operating plan can be created for the appliance, while the countdown function provides an additional timed-control option. It is a practical solution for planning electricity consumption and for regularly switching lighting or other compatible electrical appliances on and off without daily manual control.

Why is this timer useful?
Orno OR-PRE-428(GS) allows the operation of electrical appliances to be automated without additional control panels or complex installation. Simply connect the timer to a suitable power outlet, connect the appliance to be controlled and set the required schedule. Daily and weekly cycles, 10 programs and the countdown function make it possible to manage electricity usage time, reduce unnecessary appliance operation and adapt their use to the daily routine.

• Digital programming – setting the switch-on and switch-off times of electrical appliances.
• 10 time programs – possibility to create several individual appliance operating intervals.
• Daily 24-hour cycle – for automatic switching on and off according to a daily schedule.
• Weekly 7-day cycle – for operating schedules according to the days of the week.
• Countdown function – additional time-based control.
• Minimum 1-minute setting increment – for programming time intervals.
• LCD display – for viewing time, date and programming information.
• Integrated rechargeable Ni-MH battery – 1.2 V, 40 mAh.
• 1800 W maximum load power – for connected compatible appliances.
• 8(1) A current rating – important when selecting the load type.
• SCHUKO socket with protective earth – 2P+E connection design.
• 230 V AC, 50 Hz power supply – for use on a compatible mains supply.
• IP20 protection rating – for use in suitable dry indoor areas.
• Plug-in installation – no separate DIN-rail installation or fixed wiring is required.
• Electricity usage time planning – helps avoid unnecessary appliance operation at unwanted times.

• In automatic lighting control systems for homes and apartments
• For switching table and decorative lamps on according to a schedule
• For controlling shop-window and display lighting
• For planning the operating time of electrical appliances in offices and commercial premises
• For switching schedules of illuminated advertising elements
• For aquarium lighting when using compatible equipment
• For controlling low-power household electrical appliances
• For devices requiring an automatic daily operating cycle
• For appliances with different operating schedules on weekdays and weekends
• For planning electricity consumption time at home or in companies

For example, a shop needs to control decorative shop-window lighting automatically. The Orno OR-PRE-428(GS) timer is connected to a suitable 230 V mains socket and the shop-window lamp is plugged into the timer's SCHUKO socket. The current time is set on the LCD display and the required weekly switch-on and switch-off schedule is programmed. For example, on working days the lighting can be switched on at 08:00 and switched off at 20:00, while a different interval can be set for the weekend. The timer then automatically switches the power supply to the luminaire according to the selected program. In this way, the lighting operates only at the planned time and does not need to be switched on and off manually every day.

• ⚡ Use the timer only on a suitable 220–240 V AC, 50 Hz mains supply.
• Do not exceed the maximum 1800 W load power and the 8(1) A current rating.
• Before connecting an appliance, check its rated power, current and load type.
• Motors, pumps, transformers and other inductive loads can have a high starting current.
• LED power supplies and electronic devices can also have short-term inrush currents, so rated power alone is not always sufficient to assess suitability.
• Connect the timer to a sound, suitable-type power socket with protective earth.
• Use only in dry indoor areas because IP20 does not provide protection against water.
• Do not allow moisture, liquids or other foreign objects to enter the timer housing.
• Do not cover the device and ensure suitable operating conditions.
• Before cleaning the timer, switch off the connected appliance and unplug the timer from the mains socket.
• Do not use the timer if the housing, plug or electrical contacts are damaged.
• Do not connect appliances that require a continuous uninterrupted power supply.
• Avoid automatically controlling heaters or other potentially hazardous appliances unless their instructions allow this operating method.
• After programming, check that the set switch-on and switch-off times correspond to the intended schedule.
• Note that the connected device must support automatic restart after the power supply is restored if this is required for the scheduled mode.
• Use the device in accordance with the original product operating instructions.

The timer is intended to switch connected appliances on and off when their electrical characteristics do not exceed the permitted limits. It is important to consider not only the rated power but also the type of load.

Load type	What is important to know?
Resistive load	8 A current limit; also do not exceed the specified maximum power of 1800 W.
Inductive load	In the 8(1) A marking, 1 A generally indicates a lower permitted current for inductive loads. Starting characteristics must also be taken into account.
LED and electronic load	Evaluate the inrush current of power supplies and their compatibility with the timer switching contacts.

Note: the stated 1800 W rating does not mean that any motor, pump or electronic power supply of this power can be connected directly. The load must comply with the current and switching conditions.

Quick selection guide

What is the Orno OR-PRE-428(GS) timer used for?
The timer is intended to switch a connected electrical appliance on and off automatically according to a set daily or weekly schedule.

How many programs can be set?
The timer supports 10 time programs that can be adapted to an individual operating schedule for the electrical appliance.

Can different times be programmed for different days of the week?
Yes. The device supports daily and weekly programming cycles, so it can be used for different operating schedules according to the days of the week.

What is the minimum programmable time interval?
The minimum programming increment is 1 minute.

Does the timer have a countdown function?
Yes. The device has a Countdown function for counting down a set time interval.

What is the maximum connected power?
The stated maximum load power is 1800 W. The 8(1) A current limit must also be observed and the type of load must be taken into account.

What does 8(1) A mean?
This marking generally indicates current limits of 8 A for resistive loads and 1 A for inductive loads. When connecting motors and other inductive appliances, the starting current must also be evaluated.

Does the timer have an LCD display?
Yes. The digital LCD display is used to view the time, date information and programming settings.

Does the timer have an integrated battery?
Yes. The device has one integrated rechargeable Ni-MH battery rated at 1.2 V and 40 mAh.

Does the battery power the connected appliance if mains power is interrupted?
No. The integrated 1.2 V battery is not intended to power 230 V electrical appliances. Electrical power at the timer output socket is supplied from the mains.

What type of power socket is used?
The timer has a SCHUKO output socket with protective earth (2P+E).

Can it be used with LED lighting?
It can be used with compatible LED luminaires and power supplies if their load characteristics, including inrush current, comply with the timer limits.

Can an electric heater be connected?
Only if the heater is suitable for control by an external timer, its power and current do not exceed the permitted limits, and its safety instructions allow automatic switching on. Heating appliances must not be left operating under unsafe conditions.

Can the timer be used outdoors?
No. The IP20 protection rating is not intended for direct exposure to water. The device is used in suitable dry indoor areas.

Does the timer need to be installed in an electrical distribution board?
No. It is a plug-in timer that plugs directly into a suitable mains power socket.

What are the timer dimensions?
Width – 50 mm, height – 100 mm, depth – 75 mm.

Orno OR-PRE-428(GS) | digital weekly timer | 10 programs | 8(1) A | 1800 W | SCHUKO

Programmable digital plug-in timer with daily and weekly on/off cycles, 10 programs, countdown function and LCD display. Designed for 230 V AC, 50 Hz mains supply, maximum load – 1800 W, current rating – 8(1) A. SCHUKO socket with protective earth, integrated rechargeable Ni-MH 1.2 V / 40 mAh battery and IP20 protection rating. A practical solution for automating the operating time of electrical appliances in homes, offices and commercial premises.