Contattore,interruttore automatico,inverter solare,contatore elettrico,batterie solari
Questo è un Schneider TeSys K series 3-pole miniature AC contactor. It has a rated operational current of 12A (AC-3, 440V), coil voltage of 110V AC, and is fitted with 1 Normalmente aperto (1NO) contatto ausiliario. It adopts screw-clamp terminals. Designed for motor control, HVAC systems and small industrial equipment. Some legacy variants are discontinued, while this exact model remains in production. For performance upgrade, you may switch to the TeSys D series.
- Spiegazione del codice modello
| Segmento di codice | Definizione | Descrizione dettagliata |
| LC1 | Categoria di prodotto | Prefix for Schneider AC contactors; LC stands for contactor, 1 for standard type |
| K | Serie di prodotti | TeSys K series, miniature compact contactors for low-power control |
| 12 | Corrente operativa nominale | 12UN (AC-3, 440V), suitable for motors up to 5.5kW @ 400V |
| 10 | Configurazione dei contatti ausiliari | 1NO (1 Normalmente aperto), 0NC (0 Normalmente chiuso) |
| F | Codice tensione bobina | 110Bobina VCA (50/60Hz universale) |
| 7 | Tipo di cablaggio | Screw-clamp terminals, standard mounting |
- Principali Specifiche Tecniche
| Categoria | Dati tecnici | Osservazioni |
| Caratteristiche di base | ||
| Tipo di prodotto | 3-pole AC Contactor | For switching 3-phase circuits |
| Serie | TeSys K | Schneider miniature contactor range |
| Poli | 3P (L1, L2, L3) | 3-phase control |
| Corrente operativa nominale (In) | 12UN (AC-3, 440V) | Controls motors up to 5.5kW @ 400V |
| Tensione operativa nominale (Ue) | 690V e | Maximum working voltage |
| Tensione della bobina di controllo (Uc) | 110V e (50/60Hz) | Universal frequency design |
| Contatto ausiliario | 1NO (Normalmente aperto) | For circuit latching or signal feedback |
| Parametri di prestazione | ||
| Frequenza operativa nominale | 1200 cicli/ora (AC-3) | Standard duty for motor control |
| Resistenza meccanica | 10,000,000 operazioni | No-load cycles |
| Resistenza elettrica | 1,000,000 operazioni (AC-3, corrente nominale) | On-load cycles |
| Consumo energetico della bobina | Raccolta: 7VA, Presa: 2VA | Basso consumo energetico, risparmio energetico |
| Pick-up Time | ≤ 60ms | Risposta rapida |
| Drop-out Time | ≤ 40ms | Fast disconnection |
| Caratteristiche fisiche | ||
| Dimensioni (L × A × P) | 45mm × 85mm × 57mm | Design modulare standard, occupa 3 module units |
| Montaggio | 35Guida DIN da mm / Panel mounting | Conforme alla norma EN 50022 |
| Terminali | Screw clamp, max wire cross-section: 2.5mm² | Easy installation with reliable connection |
| Peso | ca. 180G | Weight per unit |
| Ambiente & Certificazioni | ||
| Temperatura operativa | -25°C~+55°C | Performance may degrade beyond this range |
| Temperatura di conservazione | -40°C~+85°C | |
| Umidità | 5% ~ 95% (Senza condensa) | |
| Protezione dall'ingresso | IP20 | A prova di dita, not for outdoor use |
| Certificazioni | CEI 60947-4-1, IN 60947-4-1 | CE marked, complies with international safety standards |
| Stato del ciclo di vita | ||
| Stato | Some old models updated; LC1K1210F7 is still in production | Obsolete legacy versions phased out; this model remains available |
- Elenco completo dei modelli (TeSys K Series 12A)
| Modello | Tensione della bobina | Contatto ausiliario | Tipo di cablaggio | Order Reference | Applicazione |
| LC1K1210F7 | 110V e | 1NO | Vite | LC1K1210F7 | Controllo industriale generale, North American & Asian equipment |
| LC1K1210E7 | 48V e | 1NO | Vite | LC1K1210E7 | Circuiti di controllo di sicurezza, low-voltage systems |
| LC1K1210G7 | 120V e | 1NO | Vite | LC1K1210G7 | North American standard equipment |
| LC1K1210M7 | 220V e | 1NO | Vite | LC1K1210M7 | europeo & Asian standard equipment |
| LC1K1210Q7 | 24A DC | 1NO | Vite | LC1K1210Q7 | Circuiti di controllo CC, PLC systems |
| LC1K1201F7 | 110V e | 1NC | Vite | LC1K1201F7 | Circuits requiring Normally Closed feedback |
| LC1K1210U7 | 240V e | 1NO | Vite | LC1K1210U7 | Heavy-duty industrial equipment |
| LC1K1210V7 | 400V e | 1NO | Vite | LC1K1210V7 | Circuiti di controllo ad alta tensione |
- Sostituzione & Equivalenti cross-brand
4.1 Original Manufacturer Replacements
| Modello originale | Modello sostitutivo | Motivo | Compatibilità |
| LC1K1210F7 | LC1K1210F7 | Same model continuously produced | Pienamente compatibile, sostituzione diretta |
| LC1D1210F7 | Upgrade to TeSys D series with enhanced performance | Dimensionally compatible, improved functions | |
| LC1E1210F7 | Economy version for cost optimization | Similar performance, costo inferiore |
4.2 Cross-Brand Compatible Products
| Marca | Modello | Livello corrispondente | Osservazioni |
| ABB | A12-30-10*110V | 95% | Same dimensions and performance |
| Siemens | 3RT2015-1BB41 | 90% | Identical auxiliary contact configuration |
| Legrand | 8860 | 90% | Different terminal design |
| Cinto (Cina) | CJX2-1210*110V | 85% | Cost-effective with complete certifications |
- Applicazione & Casi tipici
5.1 Applicazioni consigliate
Controllo motorio: Direct start/stop for 3-phase asynchronous motors below 5.5kW
Sistemi HVAC: Control of air conditioning compressors, ventilatori e pompe dell'acqua, small central air-conditioning units
Automazione industriale: PLC control circuits, trasportatori, packaging machinery and other small equipment
Edifici commerciali: Elevator door operators, fire safety equipment and lighting control
Agricultural Equipment: Irrigation pumps and greenhouse ventilation systems
5.2 Non-Recommended Applications
High-frequency cycling: Operating frequency over 1200 cicli/ora. TeSys D series is recommended.
High-power motors: Motors exceeding 5.5kW @ 400V. Select higher-rated contactors.
Outdoor humid environments: IP20 protection is insufficient; additional enclosure protection required.
Aree pericolose esplosive: Explosion-proof contactors must be used.
5.3 Casi applicativi tipici
Caso 1: Small Injection Molding Machine
Attrezzatura: 3kW hydraulic pump motor for injection molding machine
Problema: Original contactor was bulky and limited cabinet space
Soluzione: Install LC1K1210F7 together with overload relay
Risultato: 50% risparmio di spazio, simpler control circuit and lower failure rate
Caso 2: Hospital Central Air-Conditioning System
Attrezzatura: 4kW fan motors in parallel operation
Requirements: Basso rumore, low power consumption and high reliability
Soluzione: Adopt LC1K1210F7 with Schneider EOCR overload protection
Risultato: 15% risparmio energetico, stable operation and reduced maintenance cost
- Risoluzione dei problemi & Guida alla manutenzione
6.1 Difetti comuni & Soluzioni
| Fenomeno di guasto | Possibili cause | Remedial Actions |
| Coil fails to pull in | 1. No voltage or incorrect coil voltage | 1. Verify power voltage matches coil rating |
| 2. Bobina bruciata | 2. Misurare la resistenza della bobina; replace if open-circuited | |
| 3. Open control circuit | 3. Check wiring and components in control circuit | |
| 4. Inceppamento meccanico | 4. Clean iron core, inspect springs and sliding parts | |
| Forte rumore dopo il pull-in | 1. Bobina di ombreggiatura rotta | 1. Replace core assembly |
| 2. Dust/rust on core surface | 2. Clean core contact surface | |
| 3. Uneven mounting | 3. Reinstall and level the unit | |
| 4. Undervoltage supply | 4. Ensure supply voltage within 卤10% tolerance | |
| Main contacts burned | 1. Overload current | 1. Replace with higher-rated contactor |
| 2. Frequent cycling | 2. Optimize control logic to reduce switching frequency | |
| 3. Poor arc suppression | 3. Install surge suppressor | |
| 4. Fatigued contact springs | 4. Replace contact assembly | |
| Auxiliary contact malfunction | 1. Burned contacts | 1. Sostituire il modulo contatti ausiliari |
| 2. Cablaggio allentato | 2. Retighten terminal screws | |
| 3. Linkage mechanism fault | 3. Inspect linkage; sostituire se necessario |
6.2 Maintenance Procedures
- Monthly Routine Inspection
Check appearance for damage or discoloration
Inspect terminals for looseness and overheating signs
Test pull-in and drop-out action for smooth operation and abnormal noise
- Annual Preventive Maintenance
Power off and clean surface with dry soft cloth
Inspect contact wear; replace if wear depth exceeds 1mm
Measure coil resistance to confirm normal status
Lubricate moving parts with small amount of silicone-based grease
- Ciclo di sostituzione
Standard operating conditions: 5 ~ 8 anni
High-frequency cycling: 2 ~ 3 anni
Ambiente duro (alta temperatura / high humidity): 1 ~ 2 anni
6.3 Quick Troubleshooting Tips
For LC1K miniature contactors rated 12A for motor control
Check voltage first if coil fails to energize; check core for abnormal noise
Replace unit when contacts burn or auxiliary contacts fail
Regular inspection ensures safety; replace after 5 years service life
- Linee guida per la selezione
- Valutazione attuale: Select current ≥ 1.2 times motor rated current. 12A is suitable for motors below 5.5kW.
- Tensione della bobina: Match coil voltage with control circuit voltage. Common ratings: 24A DC, 110V e, 220V e.
- Contatti ausiliari: 1NO for latching; 1NC for interlock; 1NO+1NC for complex control.
- Tipo di cablaggio: Screw terminals for fixed installation; spring terminals for frequent rewiring.
- Replacement Rule: Prioritize same-series products; verify dimensions and mounting when switching to other series.
