Contattore CA Chint CJX2-0901

Chint CJX2-0901 is a compact Contattore CA, mainly used to control the on-off of motors or other loads in industrial and commercial circuits.

1. Parametri tecnici fondamentali
2. Significato del modello

CJX2: Codice della serie (CJ stands for AC Contactor, and X2 is the design serial number).

09: Rated operating current of 9A (nella categoria di servizio AC-3, it can control a 4kW motor at 380V).

01: La configurazione del contatto ausiliario è 1 normalmente chiuso (NC) contatto, with no normally open (NO) contatti.

2. Caratteristiche Elettriche

Tensione della bobina: Supporta più tensioni CA come 24 V, 36V, 48V, 110V, 220V, 240V, and 380V. Selection should be based on actual needs (per esempio., CJX2-0901-220V indicates a coil voltage of 220V).

Contatti principali: 3-polo normalmente aperto (3NO), with a rated insulation voltage of 660V and a conventional heating current of 25A.

Contatti ausiliari: 1 normalmente chiuso (NC) contatto, with a rated current of 10A, which can be used for interlocking of control circuits or signal feedback.

Durata di servizio: Mechanical service life of 10 milioni di volte, electrical service life of 1 million times under AC-3, E 200,000 times under AC-4 (suitable for high-load switching scenarios).

3. Specifiche fisiche

Metodo di installazione: Supports quick installation on 35mm DIN rails and can also be fixed with screws, risparmiando spazio e facilitando la manutenzione.

Dimensioni: Approximately 79mm × 44mm × 71mm (lunghezza × larghezza × altezza), with a weight of about 0.32kg.

Capacità di cablaggio: The main contacts can be connected to 2.5mm² flexible wires or 4mm² rigid wires, and the auxiliary contacts support 1.5mm² wires.

1. Scenari applicativi tipici
2. Controllo motorio

Directly starts three-phase asynchronous motors below 380V/4kW or 220V/2.2kW, suitable for equipment such as fans, pompe dell'acqua, e compressori.

Abbinabile ai relè termici (per esempio., NR2, JRS1 series) per formare avviatori elettromagnetici, fornendo protezione da sovraccarico.

2. Automazione industriale

Implements sequential control of equipment in production lines, Per esempio, controlling the contactor coil through PLC output signals to drive robotic arms or conveyors.

Used in star-delta reduced-voltage starting circuits, cooperating with time relays to achieve smooth starting.

3. Sistemi di alimentazione

Serves as a remote control component in power distribution systems, realizing the switching-on and switching-off of circuits by controlling the on-off of the coil, thereby improving power supply reliability.

III. Performance Advantages and Expansion Functions

1. Progettazione dell'affidabilità

Adopts silver alloy contact material, which has excellent anti-welding and wear-resistant performance, adatto per occasioni operative frequenti.

The coil has a built-in surge suppressor (external SR2-A series is required), which can reduce electromagnetic interference and protect the control system.

2. Espansione modulare

F4 series auxiliary contact blocks can be installed on the top (per esempio., F4-20: 2 contatti normalmente aperti; F4-02: 2 normally closed contacts), and the number of auxiliary contacts can be expanded to a maximum of 4 pairs.

Air time delay heads (F5 series) can be installed on the side to achieve 0.1-180 seconds of energization or de-energization delay functions, meeting the needs of complex timing control.

3. Compatibility and Certifications

Compatible with international brands such as Schneider LC1-D09 and Siemens 3TF40, with matching installation dimensions and electrical parameters, facilitating replacement and upgrading.

Has passed certifications such as CCC and CE, complies with GB/T 14048.4 e CEI 60947-4-1 standard, and is suitable for most regions around the world.

1. Consigli per la selezione e l'uso
2. Punti chiave di selezione

Select the service category according to the load type: AC-3 is used for normal motor starting, and AC-4 is used for occasions with frequent forward-reverse rotation or braking (derating is required in this case).

The coil voltage must be consistent with the control circuit to avoid coil burnout or incorrect operation of the contactor due to voltage mismatch.

2. Precauzioni per l'installazione

The installation environment temperature should be between -5℃ and +40℃, and high-temperature or humid environments should be avoided to prevent impact on service life.

The main circuit and control circuit should be wired separately to reduce signal interference; durante il cablaggio, ensure that the contacts are crimped firmly to prevent heating caused by poor contact.

3. Raccomandazioni per la manutenzione

Regularly clean the oxide layer and dust on the contact surface, check the contact wear condition, and replace the contacts when the wear exceeds 1mm.

Check the coil insulation resistance every 1-2 anni, which should be not less than 1MΩ; if overheating or abnormal noise of the coil is found, troubleshoot in a timely manner.

1. Prezzo di mercato e canali di acquisto

Prezzi di riferimento

The 220V coil model is priced at approximately 20-35 RMB per unità (Whatsapp: 0086-13811255435).

The unit price of expansion modules (per esempio., F4 auxiliary contact blocks) è approssimativamente 3-10 RMB, and that of air time delay heads is approximately 50-100 RMB.