Schneider LC1D115M7C Contactor

3-contacteur AC pôle, rated current 115A (AC-3), 220VAC coil, 1NO+1NC auxiliary contacts, bornes à vis

Numéro de commande: LC1D11500M7C (full model), LC1D115M7C (abbreviated model)

Domestic TeSys D series, phased out (launched in July 2025). Recommended replacements: LC1D115KUEC or LC1E120M5N

Complete certifications: UL, ASC, CEI, CCC, CAE, etc.. Compliant with RoHS/REACh standards

Explication du code modèle

Segment	Code	Description
Product Category	LC1	Contactor series
Construction Type	D	Série TeSys D (Domestic high-current type)
Courant nominal	115	Rated operational current 115A (AC-3, ≤440V)
Contacts auxiliaires	0	Configuration standard: 1NON + 1Contacts auxiliaires NF
Coil Rating	M.	220VAC coil voltage
Code de fréquence	7	Universal coil for 50/60Hz
Manufacturing Code	C	Manufactured by SSIC (gamme: 9~620A)

Modèle complet: LC1D11500M7C (official standard model), Abbreviated Model: LC1D115M7C

Main Specifications

Catégorie	Détails
Paramètres de base	3-pôle (3P.), 3AUCUN contact principal, 1NO+1NC auxiliary contacts, screw terminal connection
Courant nominal	AC-1: 200UN (≤440V, ≤60°C); AC-3: 115UN (≤440V, ≤60°C)
Tension nominale	Circuit principal: ≤1000VAC; Circuit de commande: 220ACC, 50/60HZ
Motor Control Rating	30kW (220~230V), 55kW (380~400V), 75kW (500V)
Durée de vie mécanique	10 millions d'opérations (AC-3), 10 millions d'opérations (AC-1)
Durée de vie électrique	1 million operations at rated current (AC-3), 1 million operations at rated current (AC-1)
Caractéristiques de la bobine	Pick-up power: 1200Virginie; Holding power: 120Virginie; Impedance: 0.6MΩ
Montage	35mm DIN rail mounting or direct panel mounting
Dimensions & Poids	Hauteur: 158mm; Largeur: 120mm; Profondeur: 136mm; Poids: environ. 2.5kilos
Classe de protection	IP20 (per IEC 60529)
Certifications	UL, ASC, CEI, CCC, CAE, Marin, RINA, DNV, etc..

Liste complète des modèles (LC1D Series 115A)

Modèle	Tension de bobine	Type de borne	Remarques
LC1D11500M7C	220ACC	Vis	Modèle standard (original model)
LC1D11500P7C	380ACC	Vis	Common alternative voltage
LC1D11500F7C	110ACC	Vis	Contrôle basse tension
LC1D11500B7C	24ACC	Vis	Safety extra-low voltage control
LC1D115006M7C	220ACC	Ring terminal	For special wiring requirements
LC1D115KUEC	100~250VAC/DC	Vis	Universal voltage, modèle de remplacement
LC1D115ABD	24VCC	Vis	DC coil version
LC1D115ALBD	24VCC	Vis	Low-power DC coil

Cross & Replacement Model List

4.1 Remplacements d'origine Schneider

Modèle original	Modèle de remplacement	Raison du remplacement	Compatibilité
LC1D115M7C	LC1D115KUEC	Universal voltage coil (100~250VAC/DC), higher flexibility	Entièrement compatible, identical mounting dimensions
LC1D115M7C	LC1E120M5N	Upgraded TeSys E Series with improved performance	Dimensions de montage identiques; verify auxiliary contact configuration
LC1D115M7C	LC1D11500M7C	Full official model, identical to abbreviated version	100% compatible

4.2 Remplacements multimarques

Marque	Modèle de remplacement	Principales différences	Applicability
ABB	A145-30-11	Rated current 145A with larger margin	Different mounting dimensions; layout adjustment required
Siemens	3RT2036-1BB40	125UN, AC-3, 220Bobine V	Same auxiliary contact layout, remplacement direct
Commutateur Changshu	CJX2-1210	Alternative nationale, rentable	Slightly lower performance, for general working conditions
Chint	NC1-1210	Alternative nationale, performance à coût élevé	Meets basic requirements, durée de vie plus courte

Application & Cas industriels

5.1 Scénarios applicables

Contrôle du moteur: Commencer, stop and reverse control for 30~75kW three-phase squirrel-cage motors

Automatisation industrielle: Control circuits for production lines, convoyeurs, compressors and pumps

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

Systèmes CVC: Control of large air conditioning compressors and ventilation fans

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

5.2 Non-Recommended Scenarios

Fonctionnement haute fréquence: Plus que 120 starts/stops per minute (use LC1D170 series or dedicated contactors)

Environnements difficiles: Heavy dust, corrosive gas or severe vibration (additional protection required)

DC Loads: Use dedicated DC contactors (par exemple. LC1D115ABD)

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

5.3 Cas d'application typiques

Cas 1: Fan Control in Steel Plant

Operating conditions: 380V, 55kW fan, AC-3, 10 starts per day, 20-hour continuous operation

Solution: LC1D115M7C + LRD3365 thermal overload relay

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

Cas 2: HVAC System in Pharmaceutical Factory

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

Solution: LC1D115M7C + Contrôle par API + surge suppressor

Avantages: Low noise and power consumption, conforme aux normes GMP

Dépannage & Maintenance Manual

6.1 Diagnostic de panne courant

Phénomène de défaut	Causes possibles	Solutions
Contactor fails to close	1. No voltage on coil; 2. Bobine brûlée; 3. Mechanical jam	1. Measure voltage across terminal A1/A2; 2. Check coil resistance (normale: environ. 320Oh); 3. Power off, inspect mechanism and remove foreign objects
Loud noise after closing	1. Sous-tension; 2. Oil contamination on core contact surface; 3. Anneau d'ombrage cassé	1. Ensure voltage within ±10% of rated value; 2. Clean core surface; 3. Replace coil assembly
Overheated / burnt main contacts	1. Overload current; 2. Mauvais contact; 3. Failed arc suppression	1. Check for load overload; 2. Nettoyer ou remplacer les contacts; 3. Inspect arc chute integrity
Auxiliary contact malfunction	1. Contacter l'oxydation; 2. Câblage lâche; 3. Mechanical wear	1. Nettoyer les contacts; 2. Retighten terminals; 3. Replace auxiliary contact block
Repeated coil burnout	1. Severe voltage fluctuation; 2. Frequent cycling; 3. Excess ambient temperature	1. Install voltage stabilizer; 2. Replace with high-cycle model; 3. Améliorer la dissipation thermique

6.2 Calendrier d'entretien & Procedures

Article d'entretien	Intervalle	Opération
Inspection visuelle	Mensuel	Check for overheating marks, abnormal odors and loose parts
Contactez-nous	Trimestriel	Mesurer la résistance de contact (<50m惟), check for ablation
Coil Inspection	Semestriellement	Measure coil resistance and insulation performance
Mechanical Lubrication	Annuellement	Lightly lubricate moving parts (silicone grease recommended)
Révision	Chaque 2 années	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 (115-170UN) in July 2025

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

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

7.2 Migration Solutions

Migration Type	Modèle recommandé	Avantages	Remarques
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% réduction des coûts	Slight performance difference; for non-critical applications