Manuale Timer Legrand 03740 Free -

Manuale Timer Legrand 03740: A Comprehensive Guide

The Legrand 03740 manual timer is a versatile and user-friendly device designed to automate and control various electrical appliances and lighting systems. This write-up aims to provide a detailed overview of the timer's features, installation process, and operating instructions.

Product Overview

The Legrand 03740 is a 24-hour manual timer that allows users to schedule and control their electrical devices, such as lights, pumps, and heating systems. The device features a simple and intuitive interface, making it easy to program and operate.

Key Features

Installation Process

  1. Mounting: The timer can be mounted on a DIN rail or directly on a wall using screws.
  2. Connections: Connect the timer to the electrical load and the mains supply according to the wiring diagram provided with the device.
  3. Power Supply: The timer requires a 230V AC power supply.

Operating Instructions

  1. Programming: To program the timer, press the "Prog" button and use the "+" and "-" buttons to set the desired time. The timer allows for up to 40 programs.
  2. Time Setting: Set the current time by pressing the "Time" button and adjusting the hours and minutes using the "+" and "-" buttons.
  3. Override: The timer can be temporarily overridden by pressing the "Override" button, allowing for manual control of the connected load.
  4. Reset: Press the "Reset" button to restore the timer to its factory settings.

Programming Example

To program the timer to switch on a light every day at 8:00 AM and off at 6:00 PM:

  1. Press the "Prog" button.
  2. Select the desired day (e.g., Monday).
  3. Set the ON time to 8:00 AM using the "+" and "-" buttons.
  4. Set the OFF time to 6:00 PM using the "+" and "-" buttons.
  5. Repeat steps 2-4 for each day of the week.

Troubleshooting

Conclusion

The Legrand 03740 manual timer is a reliable and user-friendly device for controlling and automating electrical appliances and lighting systems. By following the guidelines outlined in this write-up, users can easily install, program, and operate the timer to achieve optimal energy efficiency and convenience.

The Legrand 03740 Go to product viewer dialog for this item.

is a daily mechanical time switch designed for DIN rail mounting. It is typically used for controlling circuits like lighting or heating with a 24-hour cycle. Key Technical Specifications Voltage/Frequency: 230V~, 50-60Hz. Switching Capacity: 16A resistive / 4A inductive. Program Cycle: 24 hours (daily). Minimum Switching Time: 15 minutes per segment. Step-by-Step Programming Guide 1. Set the Current Time

Rotate the main dial clockwise until the current time aligns with the small triangle or arrow marker on the fixed part of the timer body. Be sure to distinguish between AM and PM if your specific model uses a 24-hour clock face. 2. Program ON/OFF Periods Manuale Timer Legrand 03740

Identify the Segments: The dial is surrounded by small plastic "trippers" or segments.

Setting ON: Move the segments toward the outer edge (or horizontally, depending on the specific sub-model orientation) for the times you want the load to be ON.

Setting OFF: Keep or move the segments toward the inner part of the dial for the times you want the load to be OFF. 3. Select the Operating Mode Most models feature a 3-position override switch: "I" (On): Permanent ON; the timer is bypassed.

Clock Symbol: Automatic mode; the timer follows your programmed schedule.

"O" (Off): Permanent OFF; the load will not turn on regardless of the schedule. Wiring Overview

L / N Terminals: Connect the incoming 230V supply (Live and Neutral) to power the internal motor.

Terminals 1 & 4: These are typically the switching contacts. For a standard setup, jump the live feed to terminal 1 (Common) and connect terminal 4 (Normally Open) to your lamp or device. Manuale Timer Legrand 03740: A Comprehensive Guide The

Heavy Loads: Use a contactor for any loads exceeding 16A or for 3-phase applications to prevent damaging the timer.

For detailed visual diagrams, you can refer to technical hosting sites like Scribd or the manufacturer's official support resources. How to set a Legrand 24 hour timer

Passo 1: Impostare l’Ora Corrente

  1. Ruota la ghiera centrale in senso orario (solo orario! Mai antiorario per non danneggiare il meccanismo).
  2. Allinea l’ora corrente (es. le 15:00 - ovvero le 3 del pomeriggio) con il riferimento fisso (un triangolo, una freccia o una tacca presente sul corpo del timer).
  3. Attenzione: Il timer è a 24 ore. Le 14:00 = ore 14. Non esiste AM/PM.

7. Manutenzione e Sostituzione

Il Legrand 03740 non richiede manutenzione ordinaria. Tuttavia, dopo 10-15 anni di utilizzo, il motorino sincrono può esaurirsi. Sintomi: la ghiera non gira più uniformemente o il timer si ferma. In tal caso, la riparazione non è economicamente sostenibile: acquista un nuovo timer (modelli attuali: Legrand 03752 o 03749 digitali).

Per smaltimento: Essendo un apparecchio elettrico, va conferito nei centri di raccolta RAEE, non nell’indifferenziata.

6. Domande Frequenti (FAQ)

D: Posso programmare intervalli inferiori a 15 minuti? R: No. Il Legrand 03740 ha una risoluzione di 15 minuti. Per intervalli più brevi (es. 1 minuto) occorre un timer digitale (es. Legrand 03747).

D: Perché il mio timer ha i numeri romani (I, II, III) invece che 1,2,3? R: È una variante estetica. I = 1 ora, XII = 12 ore, ripetuti due volte per il ciclo di 24 ore.

D: Il manuale originale dov’è? R: Legrand non produce più manuali cartacei. Puoi scaricarlo dal sito Legrand Italia → Supporto → Cerca "03740". In alternativa, le istruzioni qui descritte sono le medesime. 24-hour clock with daily programming 2-pole contact (2NO)

D: Posso usare questo timer per una caldaia o un motore? R: Sì, ma verifica la corrente assorbita. Per carichi induttivi (motori, elettrovalvole), la portata massima consigliata è 10 A. Per caldaie va benissimo.