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Das ist ein Schneider TeSys K series 3-pole miniature AC contactor. Der Nennbetriebsstrom beträgt 12 A (AC-3, 440V), Spulenspannung von 110V AC, und ist ausgestattet mit 1 Normalerweise geöffnet (1NEIN) Hilfskontakt. 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.
- Erklärung des Modellcodes
| Codesegment | Definition | Detaillierte Beschreibung |
| LC1 | Produktkategorie | Prefix for Schneider AC contactors; LC stands for contactor, 1 for standard type |
| K | Produktserie | TeSys K series, miniature compact contactors for low-power control |
| 12 | Nennbetriebsstrom | 12A (AC-3, 440V), suitable for motors up to 5.5kW @ 400V |
| 10 | Hilfskontaktkonfiguration | 1NEIN (1 Normalerweise geöffnet), 0NC (0 Normalerweise geschlossen) |
| F | Spulenspannungscode | 110V AC-Spule (50/60Hz universell) |
| 7 | Verkabelungstyp | Screw-clamp terminals, standard mounting |
- Wichtigste technische Spezifikationen
| Kategorie | Technische Daten | Bemerkungen |
| Grundlegende Eigenschaften | ||
| Produkttyp | 3-pole AC Contactor | For switching 3-phase circuits |
| Serie | TeSys K | Schneider miniature contactor range |
| Polen | 3P (L1, L2, L3) | 3-phase control |
| Nennbetriebsstrom (In) | 12A (AC-3, 440V) | Controls motors up to 5.5kW @ 400V |
| Nennbetriebsspannung (Ue) | 690V und | Maximale Arbeitsspannung |
| Steuerspulenspannung (Uc) | 110V und (50/60Hz) | Universal frequency design |
| Hilfskontakt | 1NEIN (Normalerweise geöffnet) | For circuit latching or signal feedback |
| Leistungsparameter | ||
| Nennbetriebsfrequenz | 1200 Zyklen/Stunde (AC-3) | Standard duty for motor control |
| Mechanische Ausdauer | 10,000,000 Operationen | No-load cycles |
| Elektrische Ausdauer | 1,000,000 Operationen (AC-3, Nennstrom) | On-load cycles |
| Spulenstromverbrauch | Abholen: 7VA, Halten: 2VA | Geringer Stromverbrauch, energiesparend |
| Pick-up Time | ≤ 60ms | Schnelle Reaktion |
| Drop-out Time | ≤ 40ms | Fast disconnection |
| Physikalische Eigenschaften | ||
| Abmessungen (B × H × T) | 45mm × 85mm × 57mm | Standardmäßiger modularer Aufbau, occupies 3 module units |
| Montage | 35mm DIN-Schiene / Panelmontage | Konform mit EN 50022 |
| Terminals | Screw clamp, max wire cross-section: 2.5mm² | Easy installation with reliable connection |
| Gewicht | Ca. 180G | Weight per unit |
| Umfeld & Zertifizierungen | ||
| Betriebstemperatur | -25°C ~ +55°C | Performance may degrade beyond this range |
| Lagertemperatur | -40°C ~ +85°C | |
| Luftfeuchtigkeit | 5% ~ 95% (Nicht kondensierend) | |
| Schutz vor Eindringen | IP20 | Fingersicher, not for outdoor use |
| Zertifizierungen | IEC 60947-4-1, IN 60947-4-1 | CE marked, complies with international safety standards |
| Lebenszyklusstatus | ||
| Status | Some old models updated; LC1K1210F7 is still in production | Obsolete legacy versions phased out; this model remains available |
- Vollständige Modellliste (TeSys K Series 12A)
| Modell | Spulenspannung | Hilfskontakt | Verkabelungstyp | Order Reference | Anwendung |
| LC1K1210F7 | 110V und | 1NEIN | Schrauben | LC1K1210F7 | Allgemeine Industriekontrolle, North American & Asian equipment |
| LC1K1210E7 | 48V und | 1NEIN | Schrauben | LC1K1210E7 | Safety control circuits, low-voltage systems |
| LC1K1210G7 | 120V und | 1NEIN | Schrauben | LC1K1210G7 | North American standard equipment |
| LC1K1210M7 | 220V und | 1NEIN | Schrauben | LC1K1210M7 | europäisch & Asian standard equipment |
| LC1K1210Q7 | 24In DC | 1NEIN | Schrauben | LC1K1210Q7 | DC-Steuerkreise, PLC systems |
| LC1K1201F7 | 110V und | 1NC | Schrauben | LC1K1201F7 | Circuits requiring Normally Closed feedback |
| LC1K1210U7 | 240V und | 1NEIN | Schrauben | LC1K1210U7 | Heavy-duty industrial equipment |
| LC1K1210V7 | 400V und | 1NEIN | Schrauben | LC1K1210V7 | High-voltage control circuits |
- Ersatz & Markenübergreifende Äquivalente
4.1 Original Manufacturer Replacements
| Originalmodell | Ersatzmodell | Grund | Kompatibilität |
| LC1K1210F7 | LC1K1210F7 | Same model continuously produced | Vollständig kompatibel, Direkter Ersatz |
| LC1D1210F7 | Upgrade to TeSys D series with enhanced performance | Dimensionally compatible, improved functions | |
| LC1E1210F7 | Economy version for cost optimization | Similar performance, geringere Kosten |
4.2 Cross-Brand Compatible Products
| Marke | Modell | Passende Ebene | Bemerkungen |
| ABB | A12-30-10*110V | 95% | Same dimensions and performance |
| Siemens | 3RT2015-1BB41 | 90% | Identical auxiliary contact configuration |
| Legrand | 8860 | 90% | Different terminal design |
| Chint (China) | CJX2-1210*110V | 85% | Cost-effective with complete certifications |
- Anwendung & Typische Fälle
5.1 Empfohlene Anwendungen
Motorsteuerung: Direct start/stop for 3-phase asynchronous motors below 5.5kW
HVAC-Systeme: Control of air conditioning compressors, fans and water pumps, small central air-conditioning units
Industrielle Automatisierung: PLC control circuits, Förderer, packaging machinery and other small equipment
Gewerbebauten: Elevator door operators, fire safety equipment and lighting control
Agricultural Equipment: Irrigation pumps and greenhouse ventilation systems
5.2 Nicht empfohlene Anwendungen
High-frequency cycling: Operating frequency over 1200 Zyklen/Stunde. TeSys D series is recommended.
Hochleistungsmotoren: Motors exceeding 5.5kW @ 400V. Select higher-rated contactors.
Outdoor humid environments: IP20 protection is insufficient; additional enclosure protection required.
Explosionsgefährdete Bereiche: Explosion-proof contactors must be used.
5.3 Typische Anwendungsfälle
Fall 1: Small Injection Molding Machine
Ausrüstung: 3kW hydraulic pump motor for injection molding machine
Ausgabe: Original contactor was bulky and limited cabinet space
Lösung: Install LC1K1210F7 together with overload relay
Ergebnis: 50% platzsparend, simpler control circuit and lower failure rate
Fall 2: Hospital Central Air-Conditioning System
Ausrüstung: 4kW fan motors in parallel operation
Requirements: Geräuscharm, low power consumption and high reliability
Lösung: Adopt LC1K1210F7 with Schneider EOCR overload protection
Ergebnis: 15% Energieeinsparung, stable operation and reduced maintenance cost
- Fehlerbehebung & Wartungshandbuch
6.1 Häufige Fehler & Lösungen
| Fehlerphänomen | Mögliche Ursachen | Remedial Actions |
| Coil fails to pull in | 1. No voltage or incorrect coil voltage | 1. Verify power voltage matches coil rating |
| 2. Durchgebrannte Spule | 2. Spulenwiderstand messen; replace if open-circuited | |
| 3. Offener Steuerkreis | 3. Check wiring and components in control circuit | |
| 4. Mechanische Blockierung | 4. Clean iron core, inspect springs and sliding parts | |
| Lautes Geräusch nach dem Einfahren | 1. Broken shading coil | 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. Replace auxiliary contact module |
| 2. Lose Verkabelung | 2. Klemmschrauben wieder festziehen | |
| 3. Linkage mechanism fault | 3. Inspect linkage; bei Bedarf austauschen |
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
- Austauschzyklus
Standard operating conditions: 5 ~ 8 Jahre
High-frequency cycling: 2 ~ 3 Jahre
Raue Umgebung (hohe Temperatur / hohe Luftfeuchtigkeit): 1 ~ 2 Jahre
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
- Auswahlrichtlinien
- Aktuelle Bewertung: Select current ≥ 1.2 mal Motornennstrom. 12A is suitable for motors below 5.5kW.
- Spulenspannung: Match coil voltage with control circuit voltage. Common ratings: 24In DC, 110V und, 220V und.
- Hilfskontakte: 1NO for latching; 1NC for interlock; 1NO+1NC for complex control.
- Verkabelungstyp: Screw terminals for fixed installation; spring terminals for frequent rewiring.
- Ersetzungsregel: Prioritize same-series products; verify dimensions and mounting when switching to other series.
