슈나이더 LC1D115M7C 접촉기

3-극 AC 접촉기, rated current 115A (AC-3), 220VAC 코일, 1NO+1NC auxiliary contacts, 나사 터미널

주문 번호: LC1D11500M7C (풀 모델), LC1D115M7C (abbreviated model)

Domestic TeSys D series, 단계적으로 폐지 (7월에 출시 2025). 권장 교체품: LC1D115KUEC 또는 LC1E120M5N

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

모델 코드 설명

분절	암호	설명
제품 카테고리	LC1	Contactor series
Construction Type	디	TeSys D 시리즈 (Domestic high-current type)
정격전류	115	Rated operational current 115A (AC-3, ≤440V)
보조 연락처	0	표준 구성: 1아니요 + 1NC 보조 접점
Coil Rating	중	220VAC coil voltage
주파수 코드	7	Universal coil for 50/60Hz
Manufacturing Code	기음	Manufactured by SSIC (범위: 9~620A)

전체 모델: LC1D11500M7C (official standard model), Abbreviated Model: LC1D115M7C

주요사양

범주	세부
기본 매개변수	3-폴 (3피), 3주요 연락처 없음, 1NO+1NC auxiliary contacts, 나사식 터미널 연결
정격전류	AC-1: 200에이 (≤440V, ≤60°C); AC-3: 115에이 (≤440V, ≤60°C)
정격전압	주회로: ≤1000VAC; 제어 회로: 220VAC, 50/60헤르츠
Motor Control Rating	30kW (220~230V), 55kW (380~400V), 75kW (500다섯)
기계적 수명	10 백만 개의 작업 (AC-3), 10 백만 개의 작업 (AC-1)
전기적 수명	1 million operations at rated current (AC-3), 1 million operations at rated current (AC-1)
코일 특성	Pick-up power: 1200버지니아; Holding power: 120버지니아; Impedance: 0.6MΩ
설치	35mm DIN rail mounting or direct panel mounting
치수 & 무게	키: 158mm; 너비: 120mm; 깊이: 136mm; 무게: 대략. 2.5kg
보호 등급	IP20 (per IEC 60529)
인증	UL, CSA, IEC, CCC, EAC, 선박, RINA, DNV, 등.

전체 모델 목록 (LC1D Series 115A)

모델	코일 전압	터미널 유형	비고
LC1D11500M7C	220VAC	나사	표준형 (원래 모델)
LC1D11500P7C	380VAC	나사	Common alternative voltage
LC1D11500F7C	110VAC	나사	저전압 제어
LC1D11500B7C	24VAC	나사	Safety extra-low voltage control
LC1D115006M7C	220VAC	Ring terminal	For special wiring requirements
LC1D115KUEC	100~250VAC/DC	나사	Universal voltage, replacement model
LC1D115ABD	24VDC	나사	DC coil version
LC1D115ALBD	24VDC	나사	Low-power DC coil

Cross & Replacement Model List

4.1 Schneider Original Replacements

원래 모델	교체 모델	교체 이유	호환성
LC1D115M7C	LC1D115KUEC	Universal voltage coil (100~250VAC/DC), 더 높은 유연성	완벽하게 호환됨, 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% 호환 가능

4.2 브랜드 간 교체

상표	교체 모델	주요 차이점	적용 가능성
씨줄	A145-30-11	Rated current 145A with larger margin	Different mounting dimensions; layout adjustment required
지멘스	3RT2036-1BB40	125에이, AC-3, 220V 코일	Same auxiliary contact layout, 직접 교체
창수 스위치	CJX2-1210	국내 대안, 비용 효율적	Slightly lower performance, for general working conditions
친트	NC1-1210	국내 대안, 높은 비용 성능	Meets basic requirements, shorter service life

애플리케이션 & 산업 사례

5.1 적용 가능한 시나리오

모터 제어: 시작, stop and reverse control for 30~75kW three-phase squirrel-cage motors

산업 자동화: Control circuits for production lines, 컨베이어, compressors and pumps

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

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

선박 & 해양 엔지니어링: Certified by marine classification societies for offshore equipment

5.2 권장되지 않는 시나리오

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

가혹한 환경: Heavy dust, corrosive gas or severe vibration (additional protection required)

DC Loads: Use dedicated DC contactors (예를 들어. LC1D115ABD)

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

5.3 일반적인 적용 사례

사례 1: Fan Control in Steel Plant

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

해결책: LC1D115M7C + LRD3365 thermal overload relay

장점: 3 years of stable operation without failure, 낮은 유지 비용

사례 2: HVAC System in Pharmaceutical Factory

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

해결책: LC1D115M7C + PLC 제어 + 서지 억제기

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

문제 해결 & Maintenance Manual

6.1 공통 결함 진단

결함 현상	가능한 원인	솔루션
Contactor fails to close	1. No voltage on coil; 2. 탄 코일; 3. Mechanical jam	1. Measure voltage across terminal A1/A2; 2. Check coil resistance (정상: 대략. 320오); 3. Power off, inspect mechanism and remove foreign objects
Loud noise after closing	1. 저전압; 2. Oil contamination on core contact surface; 3. 깨진 셰이딩 링	1. Ensure voltage within ±10% of rated value; 2. Clean core surface; 3. 코일 어셈블리 교체
Overheated / burnt main contacts	1. 과부하 전류; 2. 접촉불량; 3. Failed arc suppression	1. Check for load overload; 2. 접점 청소 또는 교체; 3. Inspect arc chute integrity
Auxiliary contact malfunction	1. 접촉 산화; 2. 느슨한 배선; 3. Mechanical wear	1. 접점 청소; 2. 단자를 다시 조이세요; 3. Replace auxiliary contact block
Repeated coil burnout	1. 심한 전압 변동; 2. Frequent cycling; 3. 과도한 주변 온도	1. 전압 안정기 설치; 2. Replace with high-cycle model; 3. 열 방출 개선

6.2 유지보수 일정 & Procedures

유지보수 항목	간격	작업
육안검사	월간 간행물	과열 표시 확인, abnormal odors and loose parts
접촉점검	계간지	접촉 저항 측정 (<50m惟), check for ablation
Coil Inspection	반년마다	Measure coil resistance and insulation performance
Mechanical Lubrication	매년	Lightly lubricate moving parts (silicone grease recommended)
Overhaul	모든 2 연령	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 (115-170에이) 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	추천 모델	장점	메모
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% 비용 절감	Slight performance difference; for non-critical applications