Contattore ABB A2X38.2-30-11-25

Basic Overview

ABB A2X38/A2X38.2 is a 3-contattore CA a polo belonging to the ABB Formula series. A2X38 is an earlier model (interrotto), 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

Spiegazione del codice modello

Segmento modello	Senso
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-contatti principali del polo, normally open configuration
11	Configurazione contatti ausiliari: 1 normalmente aperto + 1 normalmente chiuso
13/25	Codice tensione bobina: 13 = 380-400VAC, 25 = 220-240VAC
380V50/60HZ	Rated coil voltage and frequency

III. Parametri tecnici fondamentali

Parametri Elettrici

Elemento parametro	Valore	Osservazioni
Corrente operativa nominale (AC-3, 400V)	38UN	Controlled motor power: 18.5kW (50Hz) / 20hp (60Hz)
Corrente operativa nominale (AC-1, 400V)	50UN	Carico resistivo
Tensione di isolamento nominale (Ui)	690V	norma CEI
Tensione di funzionamento nominale (Ue)	400V (AC-3), 690V (AC-1)
Tensione della bobina di controllo	220-240VCA, 380-400VCA, 110VCA, 24VAC/DC, ecc.	Molteplici opzioni disponibili
Frequenza della bobina	50/60Hz	Universal design, no adjustment required
Vita utile meccanica	≥10 milioni di operazioni
Vita utile elettrica (AC-3)	≥1 milione di operazioni	Under rated load

Caratteristiche fisiche

Elemento parametro	Valore
Metodo di montaggio	Montaggio su guida DIN (35mm standard rail), slider design for one-hand disassembly
Dimensioni complessive (mm)	Approximately 85×105×55 (Larghezza × Altezza × Profondità)
Peso	Circa 0,5 kg
Classe di protezione	IP20 (main body), IP00 for terminal blocks
Temperatura ambiente	-25℃~+55℃ (operation), -40℃~+85℃ (magazzinaggio)
Grado di inquinamento	Degree 3

Caratteristiche principali del prodotto
Design compatto: Small size, risparmio 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.
Easy Installation: 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 (per alcuni modelli).
Espansione modulare: Accessories such as auxiliary contacts (fino a 4 unità), interblocchi meccanici, time-delay heads and surge suppressors can be added.
Scenari applicativi tipici

Controllo diretto di avvio e arresto di motori asincroni trifase (≤18.5kW/400V)

Electrical control of equipment such as fans, water pumps and compressors

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

Modello completo	Tensione della bobina	Contatti ausiliari	Ordering Code	Status
A2X38-30-01 380V	380VCA	0 normalmente aperto + 1 normalmente chiuso	10221469	Interrotto
A2X38.2-30-11-13	380-400VCA	1 normalmente aperto + 1 normalmente chiuso	10242059	Currently in Production
A2X38.2-30-11-25	220-240VCA	1 normalmente aperto + 1 normalmente chiuso	10242060	Currently in Production
A2X38.2-30-00-13	380-400VCA	Nessun contatto ausiliario	10242058	Currently in Production

VII. Specifiche di installazione e cablaggio

Passaggi di installazione:

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.
Cablaggio del circuito principale: L1/L2/L3 → input terminals, T1/T2/T3 → output terminals.
Cablaggio del circuito di controllo: 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:

Circuito principale: M6 bolts, suitable for copper core wires with cross-sectional area of 1.5-16mm²

Circuito di controllo: M3.5 bolts, suitable for copper core wires with cross-sectional area of 0.5-2.5mm²

VIII. Replacement Models and Compatibility

Modello originale	Direct Replacement Model	Upgraded Replacement Series	Osservazioni
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 (ampio intervallo di tensione) and built-in surge suppression
	AX38-30-xx	AX Series	Equivalent performance with slightly higher price

Troubleshooting Guide

Fenomeno di guasto	Possibili cause	Soluzioni
Il contattore non si inserisce	No voltage/low voltage on coil; Bruciatura della bobina; Inceppamento meccanico	Check the control circuit; Misurare la resistenza della bobina (approximately several hundred ohms under normal condition); Clean foreign objects and lubricate moving parts
Excessive noise after pull-in	Bassa tensione della bobina; Oil stain/rust on iron core end face; Broken short-circuit ring	Adjust control voltage to rated value; Clean iron core end face; Replace coil assembly
Contact overheating/ablation	Sovraccarico del carico; Scarso contatto dei contatti; Cablaggio allentato	Check load current; Polish contacts or replace them; Re-tighten terminal blocks
Guasto al contatto ausiliario	Contact wear; Wiring error	Replace auxiliary contact module; Check wiring polarity

Safety and Maintenance Precautions
Operazione di spegnimento: Cut off all power supplies before installation and maintenance, and hang the “Nessuna accensione” sign.
Ispezione regolare: Conduct inspection every 6 mesi, 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.
Requisiti ambientali: Avoid use in humid and dusty environments; install a protective housing if necessary.
Accessori compatibili: Only use auxiliary contacts, interlock devices and other accessories original or certified by ABB to ensure safety performance.