Schneider LC1D115M7C Contactor

3-contattore CA a polo, rated current 115A (AC-3), 220VAC coil, 1Contatti ausiliari NA+1NC, terminali a vite

Numero d'ordine: LC1D11500M7C (full model), LC1D115M7C (abbreviated model)

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

Complete certifications: UL, CSA, CEI, CCC, EAC, ecc. Compliant with RoHS/REACh standards

Spiegazione del codice modello

Segmento	Codice	Descrizione
Categoria di prodotto	LC1	Contactor series
Construction Type	D	TeSys serie D (Domestic high-current type)
Corrente nominale	115	Rated operational current 115A (AC-3, ≤440 V)
Contatti ausiliari	0	Configurazione standard: 1NO + 1Contatti ausiliari NC
Coil Rating	M	220VAC coil voltage
Codice di frequenza	7	Universal coil for 50/60Hz
Manufacturing Code	C	Manufactured by SSIC (allineare: 9~620A)

Modello completo: LC1D11500M7C (official standard model), Abbreviated Model: LC1D115M7C

Specifiche principali

Categoria	Dettagli
Parametri di base	3-palo (3P), 3NESSUN contatto principale, 1Contatti ausiliari NA+1NC, collegamento con terminale a vite
Corrente nominale	AC-1: 200UN (≤440 V, ≤60°C); AC-3: 115UN (≤440 V, ≤60°C)
Tensione nominale	Circuito principale: ≤1000VAC; Circuito di controllo: 220VCA, 50/60Hz
Motor Control Rating	30kW (220~230V), 55kW (380~400V), 75kW (500V)
Vita meccanica	10 milioni di operazioni (AC-3), 10 milioni di operazioni (AC-1)
Vita elettrica	1 million operations at rated current (AC-3), 1 million operations at rated current (AC-1)
Caratteristiche della bobina	Pick-up power: 1200VA; Detenere il potere: 120VA; Impedance: 0.6MΩ
Montaggio	35mm DIN rail mounting or direct panel mounting
Dimensioni & Peso	Altezza: 158mm; Larghezza: 120mm; Profondità: 136mm; Peso: ca. 2.5kg
Classe di protezione	IP20 (per IEC 60529)
Certificazioni	UL, CSA, CEI, CCC, EAC, Marino, RINA, DNV, ecc.

Elenco completo dei modelli (LC1D Series 115A)

Modello	Tensione della bobina	Tipo di terminale	Osservazioni
LC1D11500M7C	220VCA	Vite	Tipo standard (original model)
LC1D11500P7C	380VCA	Vite	Common alternative voltage
LC1D11500F7C	110VCA	Vite	Low voltage control
LC1D11500B7C	24VCA	Vite	Safety extra-low voltage control
LC1D115006M7C	220VCA	Ring terminal	For special wiring requirements
LC1D115KUEC	100~250VAC/DC	Vite	Voltaggio universale, replacement model
LC1D115ABD	24VCC	Vite	Versione con bobina CC
LC1D115ALBD	24VCC	Vite	Low-power DC coil

Attraverso & Replacement Model List

4.1 Sostituzioni originali Schneider

Modello originale	Modello sostitutivo	Motivo della sostituzione	Compatibilità
LC1D115M7C	LC1D115KUEC	Universal voltage coil (100~250VAC/DC), higher flexibility	Pienamente compatibile, identical mounting dimensions
LC1D115M7C	LC1E120M5N	Upgraded TeSys E Series with improved performance	Identical mounting dimensions; verify auxiliary contact configuration
LC1D115M7C	LC1D11500M7C	Full official model, identical to abbreviated version	100% compatibile

4.2 Sostituzioni tra marchi diversi

Marca	Modello sostitutivo	Principali differenze	Applicability
ABB	A145-30-11	Rated current 145A with larger margin	Different mounting dimensions; layout adjustment required
Siemens	3RT2036-1BB40	125UN, AC-3, 220Bobina V	Same auxiliary contact layout, sostituzione diretta
Interruttore Changshu	CJX2-1210	Alternativa domestica, conveniente	Slightly lower performance, for general working conditions
Cinto	NC1-1210	Alternativa domestica, prestazione ad alto costo	Meets basic requirements, shorter service life

Applicazione & Casi di settore

5.1 Scenari applicabili

Controllo motorio: Inizio, stop and reverse control for 30~75kW three-phase squirrel-cage motors

Automazione industriale: Control circuits for production lines, trasportatori, compressors and pumps

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

Sistemi HVAC: Control of large air conditioning compressors and ventilation fans

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

5.2 Scenari non consigliati

High-Frequency Operation: Più di 120 starts/stops per minute (use LC1D170 series or dedicated contactors)

Ambienti difficili: Polvere pesante, corrosive gas or severe vibration (additional protection required)

DC Loads: Use dedicated DC contactors (per esempio. LC1D115ABD)

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

5.3 Casi applicativi tipici

Caso 1: Fan Control in Steel Plant

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

Soluzione: LC1D115M7C + LRD3365 thermal overload relay

Vantaggi: 3 years of stable operation without failure, basso costo di manutenzione

Caso 2: HVAC System in Pharmaceutical Factory

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

Soluzione: LC1D115M7C + Controllo PLC + soppressore di sovratensioni

Vantaggi: Low noise and power consumption, compliant with GMP standards

Risoluzione dei problemi & Maintenance Manual

6.1 Common Fault Diagnosis

Fenomeno di guasto	Possibili cause	Soluzioni
Il contattore non si chiude	1. No voltage on coil; 2. Bobina bruciata; 3. Inceppamento meccanico	1. Measure voltage across terminal A1/A2; 2. Controllare la resistenza della bobina (normale: ca. 320OH); 3. Spegnimento, inspect mechanism and remove foreign objects
Loud noise after closing	1. Sottotensione; 2. Oil contamination on core contact surface; 3. Anello di ombreggiatura rotto	1. Ensure voltage within ±10% of rated value; 2. Clean core surface; 3. Sostituire il gruppo bobina
Overheated / burnt main contacts	1. Overload current; 2. Contatto scarso; 3. Failed arc suppression	1. Check for load overload; 2. Clean or replace contacts; 3. Inspect arc chute integrity
Auxiliary contact malfunction	1. Ossidazione da contatto; 2. Cablaggio allentato; 3. Mechanical wear	1. Contatti puliti; 2. Stringere nuovamente i terminali; 3. Replace auxiliary contact block
Repeated coil burnout	1. Forti fluttuazioni di tensione; 2. Frequent cycling; 3. Excess ambient temperature	1. Installare lo stabilizzatore di tensione; 2. Replace with high-cycle model; 3. Improve heat dissipation

6.2 Programma di manutenzione & Procedures

Articolo di manutenzione	Intervallo	Operazione
Ispezione visiva	Mensile	Check for overheating marks, abnormal odors and loose parts
Contatta l'ispezione	Trimestrale	Misurare la resistenza di contatto (<50m惟), check for ablation
Ispezione della bobina	Semestrale	Measure coil resistance and insulation performance
Mechanical Lubrication	Annualmente	Lightly lubricate moving parts (silicone grease recommended)
Overhaul	Ogni 2 anni	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

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

7.2 Migration Solutions

Migration Type	Modello consigliato	Vantaggi	Note
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% riduzione dei costi	Slight performance difference; for non-critical applications