Chint CJX2-0901 AC コンタクタ

Chint CJX2-0901 is a compact ACコンタクタ, mainly used to control the on-off of motors or other loads in industrial and commercial circuits.

コア技術パラメータ
モデルの意味

CJX2: Series code (CJ stands for AC Contactor, and X2 is the design serial number).

09: Rated operating current of 9A (under AC-3 service category, it can control a 4kW motor at 380V).

01: Auxiliary contact configuration is 1 通常は閉まっている (ノースカロライナ州) 接触, with no normally open (いいえ) 連絡先.

Electrical Characteristics

コイル電圧: 24Vなどの複数のAC電圧をサポート, 36V, 48V, 110V, 220V, 240V, and 380V. Selection should be based on actual needs (例えば, CJX2-0901-220V indicates a coil voltage of 220V).

主な連絡先: 3-ポールは通常オープンです (3いいえ), with a rated insulation voltage of 660V and a conventional heating current of 25A.

補助接点: 1 通常は閉まっている (ノースカロライナ州) 接触, with a rated current of 10A, which can be used for interlocking of control circuits or signal feedback.

耐用年数: Mechanical service life of 10 百万回, electrical service life of 1 million times under AC-3, そして 200,000 times under AC-4 (suitable for high-load switching scenarios).

物理仕様

設置方法: Supports quick installation on 35mm DIN rails and can also be fixed with screws, 省スペース化とメンテナンスの容易化.

寸法: Approximately 79mm × 44mm × 71mm (length × width × height), with a weight of about 0.32kg.

配線容量: The main contacts can be connected to 2.5mm² flexible wires or 4mm² rigid wires, and the auxiliary contacts support 1.5mm² wires.

典型的なアプリケーションシナリオ
モーター制御

Directly starts three-phase asynchronous motors below 380V/4kW or 220V/2.2kW, suitable for equipment such as fans, ウォーターポンプ, とコンプレッサー.

Can be combined with thermal overload relays (例えば, NR2, JRS1 series) to form electromagnetic starters, providing overload protection.

産業オートメーション

Implements sequential control of equipment in production lines, 例えば, 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.

パワーシステム

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

信頼性設計

Adopts silver alloy contact material, which has excellent anti-welding and wear-resistant performance, 頻繁な操作の機会に適しています.

コイルにはサージキラーが内蔵されています (external SR2-A series is required), which can reduce electromagnetic interference and protect the control system.

Modular Expansion

F4 series auxiliary contact blocks can be installed on the top (例えば, F4-20: 2 normally open contacts; 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.

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 およびIEC 60947-4-1 標準, and is suitable for most regions around the world.

Selection and Usage Recommendations
選定のポイント

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.

設置上の注意事項

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; during wiring, ensure that the contacts are crimped firmly to prevent heating caused by poor contact.

メンテナンスに関する推奨事項

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 年, which should be not less than 1MΩ; if overheating or abnormal noise of the coil is found, troubleshoot in a timely manner.