Schneider LC1D115M7C Schütz

3-Pol-AC-Schütz, rated current 115A (AC-3), 220VAC coil, 1Hilfskontakte NO+1NC, Schraubklemmen

Bestellnummer: LC1D11500M7C (full model), LC1D115M7C (abbreviated model)

Domestic TeSys D series, auslaufen (im Juli gestartet 2025). Empfohlener Ersatz: LC1D115KUEC oder LC1E120M5N

Complete certifications: UL, CSA, IEC, CCC, EAC, usw. Compliant with RoHS/REACh standards

Erklärung des Modellcodes

Segment	Code	Beschreibung
Produktkategorie	LC1	Contactor series
Construction Type	D	TeSys D-Serie (Domestic high-current type)
Nennstrom	115	Rated operational current 115A (AC-3, ≤440V)
Hilfskontakte	0	Standardkonfiguration: 1NEIN + 1NC-Hilfskontakte
Coil Rating	M	220VAC coil voltage
Frequenzcode	7	Universal coil for 50/60Hz
Manufacturing Code	C	Manufactured by SSIC (Reichweite: 9~620A)

Vollständiges Modell: LC1D11500M7C (official standard model), Abbreviated Model: LC1D115M7C

Main Specifications

Kategorie	Einzelheiten
Grundparameter	3-Pole (3P), 3KEINE Hauptkontakte, 1Hilfskontakte NO+1NC, screw terminal connection
Nennstrom	AC-1: 200A (≤440V, ≤60°C); AC-3: 115A (≤440V, ≤60°C)
Nennspannung	Hauptstromkreis: ≤1000VAC; Steuerkreis: 220VAC, 50/60Hz
Motorsteuerungsbewertung	30kW (220~230V), 55kW (380~400V), 75kW (500V)
Mechanisches Leben	10 Millionen Operationen (AC-3), 10 Millionen Operationen (AC-1)
Elektrisches Leben	1 million operations at rated current (AC-3), 1 million operations at rated current (AC-1)
Spuleneigenschaften	Pick-up power: 1200VA; Holding power: 120VA; Impedance: 0.6MΩ
Montage	35mm DIN rail mounting or direct panel mounting
Abmessungen & Gewicht	Höhe: 158mm; Breite: 120mm; Tiefe: 136mm; Gewicht: ca. 2.5kg
Schutzklasse	IP20 (per IEC 60529)
Zertifizierungen	UL, CSA, IEC, CCC, EAC, Marine, RINA, DNV, usw.

Vollständige Modellliste (LC1D Series 115A)

Modell	Spulenspannung	Terminaltyp	Bemerkungen
LC1D11500M7C	220VAC	Schrauben	Standardtyp (original model)
LC1D11500P7C	380VAC	Schrauben	Common alternative voltage
LC1D11500F7C	110VAC	Schrauben	Low voltage control
LC1D11500B7C	24VAC	Schrauben	Safety extra-low voltage control
LC1D115006M7C	220VAC	Ring terminal	For special wiring requirements
LC1D115KUEC	100~250VAC/DC	Schrauben	Universal voltage, Ersatzmodell
LC1D115ABD	24VDC	Schrauben	DC-Spulenversion
LC1D115ALBD	24VDC	Schrauben	Low-power DC coil

Cross & Replacement Model List

4.1 Schneider Original-Ersatzteile

Originalmodell	Ersatzmodell	Grund für den Austausch	Kompatibilität
LC1D115M7C	LC1D115KUEC	Universal voltage coil (100~250VAC/DC), higher flexibility	Vollständig kompatibel, identical mounting dimensions
LC1D115M7C	LC1E120M5N	Upgraded TeSys E Series with improved performance	Identische Einbaumaße; verify auxiliary contact configuration
LC1D115M7C	LC1D11500M7C	Full official model, identical to abbreviated version	100% compatible

4.2 Markenübergreifender Ersatz

Marke	Ersatzmodell	Hauptunterschiede	Applicability
ABB	A145-30-11	Rated current 145A with larger margin	Different mounting dimensions; layout adjustment required
Siemens	3RT2036-1BB40	125A, AC-3, 220V-Spule	Same auxiliary contact layout, Direkter Ersatz
Changshu-Schalter	CJX2-1210	Inländische Alternative, kostengünstig	Slightly lower performance, for general working conditions
Chint	NC1-1210	Inländische Alternative, hohe Kostenleistung	Meets basic requirements, shorter service life

Anwendung & Branchenfälle

5.1 Anwendbare Szenarien

Motorsteuerung: Start, stop and reverse control for 30~75kW three-phase squirrel-cage motors

Industrielle Automatisierung: Control circuits for production lines, Förderer, compressors and pumps

Stromverteilung: Switching control for non-inductive or weakly inductive loads such as resistance furnaces and heaters (AC-1)

HVAC-Systeme: Control of large air conditioning compressors and ventilation fans

Marine & Offshore-Engineering: Certified by marine classification societies for offshore equipment

5.2 Non-Recommended Scenarios

Hochfrequenzbetrieb: Mehr als 120 starts/stops per minute (use LC1D170 series or dedicated contactors)

Harsh Environments: Starker Staub, corrosive gas or severe vibration (additional protection required)

DC-Lasten: Use dedicated DC contactors (z.B. LC1D115ABD)

High Altitude: Derating required above 2000m (10% derating per additional 1000m)

5.3 Typische Anwendungsfälle

Fall 1: Fan Control in Steel Plant

Operating conditions: 380V, 55kW fan, AC-3, 10 starts per day, 20-Stunde Dauerbetrieb

Lösung: LC1D115M7C + LRD3365 thermal overload relay

Vorteile: 3 years of stable operation without failure, low maintenance cost

Fall 2: HVAC System in Pharmaceutical Factory

Operating conditions: 400V, 45kW compressor, AC-3, 24-hour continuous operation and frequent cycling

Lösung: LC1D115M7C + SPS-Steuerung + Überspannungsschutz

Vorteile: Low noise and power consumption, konform mit GMP-Standards

Fehlerbehebung & Maintenance Manual

6.1 Häufige Fehlerdiagnose

Fehlerphänomen	Mögliche Ursachen	Lösungen
Contactor fails to close	1. No voltage on coil; 2. Verbrannte Spule; 3. Mechanischer Stau	1. Measure voltage across terminal A1/A2; 2. Spulenwiderstand prüfen (Normal: ca. 320Oh); 3. Ausschalten, inspect mechanism and remove foreign objects
Loud noise after closing	1. Unterspannung; 2. Oil contamination on core contact surface; 3. Broken shading ring	1. Ensure voltage within ±10% of rated value; 2. Clean core surface; 3. Replace coil assembly
Überhitzt / burnt main contacts	1. Overload current; 2. Schlechter Kontakt; 3. Fehlerhafte Lichtbogenunterdrückung	1. Check for load overload; 2. Kontakte reinigen oder austauschen; 3. Inspect arc chute integrity
Auxiliary contact malfunction	1. Kontaktoxidation; 2. Lose Verkabelung; 3. Mechanical wear	1. Kontakte reinigen; 2. Klemmen wieder festziehen; 3. Replace auxiliary contact block
Repeated coil burnout	1. Severe voltage fluctuation; 2. Frequent cycling; 3. Zu hohe Umgebungstemperatur	1. Install voltage stabilizer; 2. Replace with high-cycle model; 3. Verbessern Sie die Wärmeableitung

6.2 Wartungsplan & Procedures

Wartungsartikel	Intervall	Betrieb
Visuelle Inspektion	Monatlich	Check for overheating marks, abnormal odors and loose parts
Wenden Sie sich an die Inspektion	Vierteljährlich	Kontaktwiderstand messen (<50m惟), check for ablation
Spuleninspektion	Halbjährlich	Measure coil resistance and insulation performance
Mechanical Lubrication	Jährlich	Lightly lubricate moving parts (silicone grease recommended)
Überholung	Jeder 2 Jahre	Disassemble for full inspection, replace worn parts and clean interior

Phase-Out & Migration Guide

7.1 Phase-Out Information

Phase-out Plan: Schneider launched the phase-out of domestic high-current TeSys D series (115-170A) in July 2025

Transition Period: July 2025 – December 2026. Production will cease after the period

Inventar: Stock is still available via some distributors. Procurement or model replacement is recommended as soon as possible.

7.2 Migration Solutions

Migration Type	Empfohlenes Modell	Vorteile	Notizen
In-Series Upgrade	LC1D115KUEC	Universal voltage coil for wider application	Identical mounting size, no cabinet modification needed
Cross-Series Upgrade	LC1E120M5N	TeSys E Series with enhanced performance and longer service life	Auxiliary contact layout may differ; verify control circuit
Cost-Saving Replacement	Changshu CJX2-1210 / Chint NC1-1210	30-50% Kostenreduzierung	Slight performance difference; for non-critical applications