シュナイダー LC1D115M7C コンタクタ

3-ポールACコンタクタ, rated current 115A (AC-3), 220VACコイル, 1NO+1NC補助接点, ネジ端子

注文番号: LC1D11500M7C (full model), LC1D115M7C (abbreviated model)

Domestic TeSys D series, 段階的に廃止された (7月に発売 2025). 推奨代替品: LC1D115KUEC または LC1E120M5N

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

型式コードの説明

セグメント	コード	説明
製品カテゴリー	LC1	Contactor series
Construction Type	D	TeSys Dシリーズ (Domestic high-current type)
定格電流	115	Rated operational current 115A (AC-3, ≤440V)
補助接点	0	標準構成: 1いいえ + 1NC補助接点
Coil Rating	M	220VAC coil voltage
周波数コード	7	Universal coil for 50/60Hz
Manufacturing Code	C	Manufactured by SSIC (範囲: 9~620A)

フルモデル: LC1D11500M7C (official standard model), Abbreviated Model: LC1D115M7C

主な仕様

カテゴリ	詳細
基本パラメータ	3-ポール (3P), 3メイン接点なし, 1NO+1NC補助接点, screw terminal connection
定格電流	AC-1: 200あ (≤440V, ≤60℃); AC-3: 115あ (≤440V, ≤60℃)
定格電圧	主回路: ≤1000VAC; 制御回路: 220VAC, 50/60Hz
Motor Control Rating	30kW (220~230V), 55kW (380~400V), 75kW (500V)
機械的寿命	10 100万操作 (AC-3), 10 100万操作 (AC-1)
電気的寿命	1 million operations at rated current (AC-3), 1 million operations at rated current (AC-1)
コイル特性	Pick-up power: 1200バージニア州; 保持力: 120バージニア州; Impedance: 0.6MΩ
取り付け	35mm DIN rail mounting or direct panel mounting
寸法 & 重さ	身長: 158mm; 幅: 120mm; 深さ: 136mm; 重さ: 約. 2.5kg
保護クラス	IP20 (per IEC 60529)
認証	UL, CSA, IEC, CCC, EAC, 海洋, RINA, DNV, 等.

全モデルリスト (LC1D Series 115A)

モデル	コイル電圧	端子の種類	備考
LC1D11500M7C	220VAC	スクリュー	標準タイプ (original model)
LC1D11500P7C	380VAC	スクリュー	Common alternative voltage
LC1D11500F7C	110VAC	スクリュー	Low voltage control
LC1D11500B7C	24VAC	スクリュー	Safety extra-low voltage control
LC1D115006M7C	220VAC	Ring terminal	For special wiring requirements
LC1D115KUEC	100~250VAC/DC	スクリュー	Universal voltage, replacement model
LC1D115ABD	24VDC	スクリュー	DC coil version
LC1D115ALBD	24VDC	スクリュー	Low-power DC coil

Cross & Replacement Model List

4.1 Schneider Original Replacements

オリジナルモデル	代替機種	交換理由	互換性
LC1D115M7C	LC1D115KUEC	Universal voltage coil (100~250VAC/DC), higher flexibility	完全な互換性, identical mounting dimensions
LC1D115M7C	LC1E120M5N	Upgraded TeSys E Series with improved performance	同一取付寸法; verify auxiliary contact configuration
LC1D115M7C	LC1D11500M7C	Full official model, identical to abbreviated version	100% 互換性がある

4.2 ブランド間の交換

ブランド	代替機種	主な違い	適用性
ABB	A145-30-11	Rated current 145A with larger margin	Different mounting dimensions; layout adjustment required
シーメンス	3RT2036-1BB40	125あ, AC-3, 220Vコイル	Same auxiliary contact layout, 直接交換
常熟スイッチ	CJX2-1210	国内代替品, 費用対効果の高い	Slightly lower performance, for general working conditions
チント	NC1-1210	国内代替品, 高いコストパフォーマンス	Meets basic requirements, shorter service life

応用 & 業界の事例

5.1 該当するシナリオ

モーター制御: 始める, stop and reverse control for 30~75kW three-phase squirrel-cage motors

産業オートメーション: Control circuits for production lines, コンベア, compressors and pumps

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

HVAC システム: Control of large air conditioning compressors and ventilation fans

海洋 & オフショアエンジニアリング: Certified by marine classification societies for offshore equipment

5.2 非推奨のシナリオ

高周波動作: More than 120 starts/stops per minute (use LC1D170 series or dedicated contactors)

過酷な環境: Heavy dust, corrosive gas or severe vibration (additional protection required)

DC Loads: Use dedicated DC contactors (例えば. LC1D115ABD)

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

5.3 代表的な応用例

場合 1: Fan Control in Steel Plant

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

解決: LC1D115M7C + LRD3365 thermal overload relay

利点: 3 years of stable operation without failure, メンテナンスコストが低い

場合 2: HVAC System in Pharmaceutical Factory

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

解決: LC1D115M7C + PLC制御 + サージキラー

利点: Low noise and power consumption, GMP基準に準拠

トラブルシューティング & Maintenance Manual

6.1 一般的な故障診断

故障現象	考えられる原因	ソリューション
コンタクタが閉じない	1. No voltage on coil; 2. コイル焼け; 3. 機械的な詰まり	1. Measure voltage across terminal A1/A2; 2. コイル抵抗をチェックする (普通: 約. 320おお); 3. Power off, inspect mechanism and remove foreign objects
Loud noise after closing	1. 不足電圧; 2. Oil contamination on core contact surface; 3. 壊れたシェーディングリング	1. Ensure voltage within ±10% of rated value; 2. Clean core surface; 3. Replace coil assembly
Overheated / burnt main contacts	1. Overload current; 2. 接触不良; 3. Failed arc suppression	1. Check for load overload; 2. Clean or replace contacts; 3. Inspect arc chute integrity
Auxiliary contact malfunction	1. 接触酸化; 2. 配線の緩み; 3. Mechanical wear	1. 清潔な接点; 2. 端子の増し締め; 3. Replace auxiliary contact block
Repeated coil burnout	1. Severe voltage fluctuation; 2. Frequent cycling; 3. Excess ambient temperature	1. 電圧安定器を取り付ける; 2. Replace with high-cycle model; 3. 放熱性を向上させる

6.2 メンテナンススケジュール & Procedures

メンテナンス品	間隔	手術
目視検査	毎月	Check for overheating marks, abnormal odors and loose parts
接触検査	四半期ごと	接触抵抗を測定する (<50m惟), check for ablation
コイル検査	Semi-annually	Measure coil resistance and insulation performance
Mechanical Lubrication	毎年	Lightly lubricate moving parts (silicone grease recommended)
Overhaul	毎 2 年	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 (115-170あ) 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	推奨モデル	利点	注意事項
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% コスト削減	Slight performance difference; for non-critical applications