ABB コンタクター A2X38.2-30-11-25

Basic Overview

ABB A2X38/A2X38.2 is a 3-pole AC contactor 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. Ordering Code: 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) / 20hp (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 (main body), 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, saving 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 (for some models).
Modular Expansion: 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

Direct start and stop control of three-phase asynchronous motors (≤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	Ordering Code	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	No auxiliary contacts	10242058	Currently in Production

Ⅶ. Installation and Wiring Specifications

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. Replacement Models and Compatibility

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	Check load current; Polish contacts or replace them; Re-tighten terminal blocks
Auxiliary contact failure	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
Power-off Operation: 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.