コンタクタ,サーキットブレーカー,ソーラーインバーター,電気メーター,太陽電池
Basic Overview
ABB A2X38/A2X38.2 is a 3-ポールACコンタクタ belonging to the ABB Formula series. A2X38 is an earlier model (製造中止), while A2X38.2 is its upgraded replacement (currently in production). It is mainly used for controlling three-phase squirrel-cage motors and other power loads, and is suitable for industrial automation and building electrical systems. 注文コード: 2TFC200010R2511
- 型式コードの説明
| モデルセグメント | 意味 |
| A2X | Formula series contactor with compact and cost-effective design |
| 38 | Rated operating current of 38A (AC-3, 400V) |
| 0.2 | Second-generation upgraded version (improved type) |
| 30 | 3-極主接点, normally open configuration |
| 11 | 補助接点構成: 1 通常は開いています + 1 通常は閉まっている |
| 13/25 | コイル電圧コード: 13 = 380-400VAC, 25 = 220-240VAC |
| 380V50/60HZ | Rated coil voltage and frequency |
Ⅲ. コア技術パラメータ
- 電気的パラメータ
| パラメータ項目 | 価値 | 備考 |
| 定格動作電流 (AC-3, 400V) | 38あ | Controlled motor power: 18.5kW (50Hz) / 20馬力 (60Hz) |
| 定格動作電流 (AC-1, 400V) | 50あ | 抵抗負荷 |
| 定格絶縁電圧 (ウイ) | 690V | IEC規格 |
| 定格使用電圧 (うえ) | 400V (AC-3), 690V (AC-1) | |
| 制御コイル電圧 | 220-240VAC, 380-400VAC, 110VAC, 24VAC/DC, 等. | 複数のオプションが利用可能 |
| コイル周波数 | 50/60Hz | Universal design, no adjustment required |
| 機械的寿命 | 1,000万回以上の操作 | |
| 電気的寿命 (AC-3) | 100万回以上の操作 | Under rated load |
- 身体的特徴
| パラメータ項目 | 価値 |
| 取付方法 | DINレール取付 (35mm標準レール), slider design for one-hand disassembly |
| 全体の寸法 (mm) | Approximately 85×105×55 (Width × Height × Depth) |
| 重さ | 約0.5kg |
| 保護クラス | IP20 (本体), IP00 for terminal blocks |
| 周囲温度 | -25℃～+55℃ (手術), -40℃~+85℃ (ストレージ) |
| 汚染度 | 程度 3 |
- 製品の主要な機能
- コンパクトなデザイン: 小型, 節約 30% of installation space, suitable for high-density distribution cabinets.
- High Efficiency and Reliability: Silver alloy contacts with arc resistance, low contact resistance and long service life.
- 簡単な取り付け: Quick snap-on fixing, auxiliary contact modules can be directly clipped without tools.
- Safety Assurance: Flame-retardant engineering plastic housing complying with UL94 V0 standard, built-in surge suppression (一部のモデルの場合).
- モジュール拡張: Accessories such as auxiliary contacts (まで 4 単位), mechanical interlocks, time-delay heads and surge suppressors can be added.
- 典型的なアプリケーションシナリオ
三相非同期モーターのダイレクトスタート・ストップ制御 (≤18.5kW/400V)
Electrical control of equipment such as fans, ウォーターポンプとコンプレッサー
Switch control of non-motor loads such as heating and lighting systems
Building electrical systems and industrial automation production lines
Replacement of old contactors for equipment upgrading and transformation
- Complete Model and Ordering Information
| 完成モデル | コイル電圧 | 補助接点 | 注文コード | 状態 |
| A2X38-30-01 380V | 380VAC | 0 通常は開いています + 1 通常は閉まっている | 10221469 | 製造中止 |
| A2X38.2-30-11-13 | 380-400VAC | 1 通常は開いています + 1 通常は閉まっている | 10242059 | Currently in Production |
| A2X38.2-30-11-25 | 220-240VAC | 1 通常は開いています + 1 通常は閉まっている | 10242060 | Currently in Production |
| A2X38.2-30-00-13 | 380-400VAC | 補助接点なし | 10242058 | Currently in Production |
Ⅶ. 設置・配線仕様
インストール手順:
- Confirm that the installation environment meets the range of -25℃~+55℃, free from severe vibration and corrosive gases.
- Select a 35mm standard DIN rail and ensure the mounting surface is flat.
- Align the contactor’s snap with the rail, press down and slide to fix (one-hand operation).
- Cut off all power supplies before wiring, and use a multimeter to confirm no voltage exists.
- 主回路配線: L1/L2/L3 → input terminals, T1/T2/T3 → output terminals.
- 制御回路配線: A1/A2 → coil power supply, 13/14 → normally open auxiliary contacts, 21/22 → normally closed auxiliary contacts.
- After wiring is completed, gently pull the wires to confirm they are connected firmly without loosening.
Terminal Block Specifications:
主回路: M6 bolts, suitable for copper core wires with cross-sectional area of 1.5-16mm²
制御回路: M3.5 bolts, suitable for copper core wires with cross-sectional area of 0.5-2.5mm²
VIII. 代替モデルと互換性
| オリジナルモデル | Direct Replacement Model | Upgraded Replacement Series | 備考 |
| A2X38 | A2X38.2 | AF38 Series | A2X38.2 is fully compatible with A2X38 in terms of installation dimensions and electrical performance |
| A2X38.2 | AF38-30-xx-xx | AF Series | AF series has advantages such as electronic coil (wide voltage range) and built-in surge suppression |
| AX38-30-xx | AX Series | Equivalent performance with slightly higher price |
- トラブルシューティングガイド
| 故障現象 | 考えられる原因 | ソリューション |
| コンタクタが引き込まれない | No voltage/low voltage on coil; コイル断線; 機械的な妨害 | Check the control circuit; コイル抵抗を測定する (approximately several hundred ohms under normal condition); Clean foreign objects and lubricate moving parts |
| Excessive noise after pull-in | コイル電圧が低い; Oil stain/rust on iron core end face; ショートリングの破損 | Adjust control voltage to rated value; きれいな鉄心端面; Replace coil assembly |
| 接点の過熱/アブレーション | 過負荷; 接点の接触不良; 配線の緩み | 負荷電流を確認する; Polish contacts or replace them; Re-tighten terminal blocks |
| 補助接点の故障 | Contact wear; Wiring error | 補助接点モジュールを交換する; Check wiring polarity |
- Safety and Maintenance Precautions
- 電源オフ動作: Cut off all power supplies before installation and maintenance, and hang the “スイッチが入らない” サイン.
- 定期点検: Conduct inspection every 6 月, including contact wear, terminal tightness and coil temperature.
- Contact Replacement: Replace the main contacts in time when the wear amount exceeds 1mm or the surface is severely ablated.
- 環境要件: Avoid use in humid and dusty environments; install a protective housing if necessary.
- 互換性のあるアクセサリ: Only use auxiliary contacts, interlock devices and other accessories original or certified by ABB to ensure safety performance.
