Manuale Timer Legrand 03740 May 2026

Manuale Timer Legrand 03740

Descrizione generale

Il timer Legrand modello 03740 è un interruttore orario meccanico/elettromeccanico progettato per il controllo temporizzato di circuiti elettrici domestici e commerciali (illuminazione, riscaldamento, pompe, ecc.). Consente di programmare accensioni e spegnimenti automatici su base giornaliera.

Power Handling: It supports a maximum load of 16 amps at 230V; however, for loads exceeding this or for 3-phase systems, the Legrand 03740 instruction manual from waterheatertimer.org strongly advises using a 2-pole or 3-pole contactor. Manuale Timer Legrand 03740

• [ ] Is the timer in AUTO mode?
• [ ] Is the clock set to the correct day (1-7)?
• [ ] Are your ON times before your OFF times?
• [ ] Have you avoided overlapping programs?
• [ ] Did you press Menu to exit programming (not just OK)?

Risoluzione problemi comuni

• Timer non si muove: controllare alimentazione e fusibili; verificare che l'asse non sia bloccato da polvere.
• Uscita non commuta: controllare cablaggio, carico e portata relè.
• Orario non corrisponde: riallineare il quadrante alla corrente.

, which keeps the timer accurate during local power outages. Compact Form Factor one module wide Manuale Timer Legrand 03740 Descrizione generale Il timer

• Model Number: 03740 (often part of the Plexo or Ecogreen range).
• Rated Voltage: 230 V AC (50/60 Hz).
• Contact Configuration: 1 Changeover (1 CO / SPDT).
• Rated Current: Typically 16 A (Resistive load), 10 A (Inductive load).
• Min. Switching Interval: 1 minute.
• Memory Capacity: Up to 50 to 56 switching operations (model dependent).
• Backup Battery: Integrated rechargeable lithium battery (non-replaceable in some older units; designed for 100+ hours backup).
• Mounting: DIN Rail (standard 35mm).

Target Audience: Electricians, facility managers, and advanced DIY users requiring precise automation control. [ ] Is the timer in AUTO mode

• No complex menus – immediate visual feedback of the program.
• 100% reliable after power loss – the mechanical dial position doesn’t change, and the reserve keeps time.
• Durable, long life – tested for over 100,000 switching cycles.

Conclusion