Schneider LC1D115M7C Contactor

3-contator CA de pólo, rated current 115A (AC-3), 220VAC coil, 1Contatos auxiliares NO+1NC, terminais de parafuso

Número do pedido: LC1D11500M7C (modelo completo), 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, etc.. Compliant with RoHS/REACh standards

Explicação do código do modelo

Segmento	Código	Descrição
Categoria de produto	LC1	Contactor series
Construction Type	D	TeSys D Series (Domestic high-current type)
Corrente nominal	115	Rated operational current 115A (AC-3, ≤440V)
Contatos Auxiliares	0	Configuração padrão: 1NÃO + 1Contatos auxiliares NC
Coil Rating	M	220VAC coil voltage
Frequency Code	7	Universal coil for 50/60Hz
Manufacturing Code	C	Manufactured by SSIC (faixa: 9~620A)

Modelo Completo: LC1D11500M7C (official standard model), Abbreviated Model: LC1D115M7C

Especificações principais

Categoria	Detalhes
Parâmetros Básicos	3-pólo (3P), 3SEM contatos principais, 1Contatos auxiliares NO+1NC, screw terminal connection
Corrente nominal	AC-1: 200UM (≤440V, ≤60°C); AC-3: 115UM (≤440V, ≤60°C)
Tensão nominal	Circuito principal: ≤1000VAC; Circuito de controle: 220VAC, 50/60Hz
Motor Control Rating	30kW (220~230V), 55kW (380~400V), 75kW (500V)
Vida Mecânica	10 milhões de operações (AC-3), 10 milhões de operações (AC-1)
Vida Elétrica	1 million operations at rated current (AC-3), 1 million operations at rated current (AC-1)
Características da bobina	Pick-up power: 1200VA; Holding power: 120VA; Impedance: 0.6MΩ
Montagem	35mm DIN rail mounting or direct panel mounting
Dimensões & Peso	Altura: 158milímetros; Largura: 120milímetros; Profundidade: 136milímetros; Peso: aprox.. 2.5kg
Classe de Proteção	IP20 (per IEC 60529)
Certificações	UL, CSA, CEI, CCC, EAC, Marinho, RINA, DNV, etc..

Lista completa de modelos (LC1D Series 115A)

Modelo	Tensão da bobina	Tipo de terminal	Observações
LC1D11500M7C	220VAC	Parafuso	Tipo padrão (modelo original)
LC1D11500P7C	380VAC	Parafuso	Common alternative voltage
LC1D11500F7C	110VAC	Parafuso	Controle de baixa tensão
LC1D11500B7C	24VAC	Parafuso	Safety extra-low voltage control
LC1D115006M7C	220VAC	Ring terminal	For special wiring requirements
LC1D115KUEC	100~250VAC/DC	Parafuso	Universal voltage, modelo de substituição
LC1D115ABD	24CCV	Parafuso	DC coil version
LC1D115ALBD	24CCV	Parafuso	Low-power DC coil

Cruzar & Replacement Model List

4.1 Schneider Original Replacements

Modelo original	Modelo de substituição	Motivo da substituição	Compatibilidade
LC1D115M7C	LC1D115KUEC	Universal voltage coil (100~250VAC/DC), higher flexibility	Totalmente compatível, 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% compatível

4.2 Cross-Brand Replacements

Marca	Modelo de substituição	Principais diferenças	Applicability
ABB	A145-30-11	Rated current 145A with larger margin	Different mounting dimensions; layout adjustment required
Siemens	3RT2036-1BB40	125UM, AC-3, 220Bobina V	Same auxiliary contact layout, substituição direta
Interruptor Changshu	CJX2-1210	Alternativa doméstica, econômico	Slightly lower performance, for general working conditions
Chint	NC1-1210	Alternativa doméstica, desempenho de alto custo	Meets basic requirements, shorter service life

Aplicativo & Casos da Indústria

5.1 Cenários Aplicáveis

Controle Motor: Começar, stop and reverse control for 30~75kW three-phase squirrel-cage motors

Automação Industrial: Control circuits for production lines, transportadores, compressors and pumps

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

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

Marinho & Engenharia Offshore: Certified by marine classification societies for offshore equipment

5.2 Cenários não recomendados

Operação de alta frequência: Mais do que 120 starts/stops per minute (use LC1D170 series or dedicated contactors)

Ambientes Adversos: Heavy dust, corrosive gas or severe vibration (additional protection required)

DC Loads: Use dedicated DC contactors (por exemplo. LC1D115ABD)

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

5.3 Casos de aplicação típicos

Caso 1: Fan Control in Steel Plant

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

Solução: LC1D115M7C + LRD3365 thermal overload relay

Vantagens: 3 years of stable operation without failure, baixo custo de manutenção

Caso 2: HVAC System in Pharmaceutical Factory

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

Solução: LC1D115M7C + Controle CLP + supressor de surto

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

Solução de problemas & Maintenance Manual

6.1 Diagnóstico de falhas comuns

Fenômeno de falha	Possíveis causas	Soluções
Contactor fails to close	1. No voltage on coil; 2. Bobina queimada; 3. Mechanical jam	1. Measure voltage across terminal A1/A2; 2. Check coil resistance (normal: aprox.. 320Oh); 3. Desligar, inspect mechanism and remove foreign objects
Loud noise after closing	1. Subtensão; 2. Oil contamination on core contact surface; 3. Anel de sombreamento quebrado	1. Ensure voltage within ±10% of rated value; 2. Clean core surface; 3. Substitua o conjunto da bobina
Overheated / burnt main contacts	1. Overload current; 2. Mau contato; 3. Failed arc suppression	1. Check for load overload; 2. Limpe ou substitua os contatos; 3. Inspect arc chute integrity
Auxiliary contact malfunction	1. Oxidação de contato; 2. Fiação solta; 3. Desgaste mecânico	1. Limpar contatos; 2. Reaperte os terminais; 3. Replace auxiliary contact block
Repeated coil burnout	1. Flutuação severa de tensão; 2. Frequent cycling; 3. Excess ambient temperature	1. Instale o estabilizador de tensão; 2. Replace with high-cycle model; 3. Improve heat dissipation

6.2 Cronograma de Manutenção & Procedures

Item de manutenção	Intervalo	Operação
Inspeção Visual	Mensal	Check for overheating marks, abnormal odors and loose parts
Inspeção de contato	Trimestral	Medir a resistência de contato (<50m惟), check for ablation
Coil Inspection	Semestralmente	Measure coil resistance and insulation performance
Mechanical Lubrication	Anualmente	Lightly lubricate moving parts (silicone grease recommended)
Overhaul	Todo 2 anos	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 (115-170UM) 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	Modelo recomendado	Vantagens	Notas
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% redução de custos	Slight performance difference; for non-critical applications