Wuhan Anshan Electricity Co., Ltd.
                                                                                                           
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Single Phase Three Phase AC Contactor 3 Pole Switching Solution IEC 60947-4-1

Price Negotiable
Price: $5-6
MOQ: 10
Delivery Time: Negotiable
Brand: CHINT
Product Description
Product Overview

The CJX1 Series AC Contactor is a high-performance switching solution designed for making, breaking, and frequently starting AC motors. Operating in systems up to 690V and 50/60Hz, the CJX1-12/22 model is renowned for its mechanical longevity and electrical stability.

Built to international technical standards, this series is a direct equivalent to the world-standard 3TF series design. It features a sophisticated double-break contact system and a compact modular frame, making it the premier choice for industrial motor control centers (MCC), HVAC systems, and heavy-duty automation panels.


Key Technical Advantages
  • Superior Contact Material: Utilizing high-grade silver-alloy contacts to ensure low contact resistance and maximum resistance against arc erosion and welding under heavy-duty AC-3 loads.

  • Double-Break Contact Architecture: The twin-break design increases the arc-quenching efficiency, significantly extending the electrical lifespan of the contactor compared to single-break alternatives.

  • Flexible Auxiliary Configuration: The CJX1-12/22 comes with built-in auxiliary contacts (2NO+2NC), allowing for complex interlocking and signaling without the need for additional add-on blocks.

  • High Operational Frequency: Capable of up to 1,200 operations per hour (for AC-3), ensuring reliable performance in rapid-start industrial cycles.

  • Global Standard Compliance: Manufactured and tested to meet IEC 60947-4-1 and EN 60947 standards, ensuring safety and performance across international markets.


Technical Specifications
Feature Detailed Specifications
Model CJX1-12/22 (Equivalent to 3TF42)
Rated Operational Current (Ie) 12A (AC-3, 380V)
Controlled Power (Pe) 5.5kW (at 380V/400V)
Main Contacts 3-Pole (3P)
Auxiliary Contacts 2NO + 2NC
Coil Voltages (Uc) AC 24V, 110V, 220V, 380V, 415V
Mechanical Life 10 million operations
Electrical Life (AC-3) 1 million operations

Primary Application Scenarios
  1. Industrial Motor Control: Direct-on-line (DOL) starting and stopping of three-phase squirrel-cage motors.

  2. Star-Delta Starters: Used in combination with timers and thermal overload relays for high-torque motor starting sequences.

  3. HVAC Systems: Controlling large compressor motors and industrial ventilation fans in commercial buildings.

  4. Heating and Lighting: Reliable switching of non-inductive or slightly inductive loads in resistive heating circuits.


Why Choose the CJX1-12/22 Series?
  • Drop-in Compatibility: Identical mounting dimensions and terminal layouts as the 3TF series allow for seamless replacement of aging components in existing panels.

  • Easy Maintenance: The arc chute and contacts are easily accessible, allowing for rapid inspection and maintenance without specialized tools.

  • Dust-Proof Protection: The enclosed contact design prevents the ingress of industrial dust, ensuring high-reliability switching in textile mills and woodworking facilities.

  • Rugged Coil Construction: High-quality copper windings and a reinforced magnetic core provide stable pick-up and drop-out voltages, even during slight grid fluctuations.


FAQ

Q: Can I use the CJX1-12/22 for single-phase applications?

A: Yes. While designed for three-phase systems, you can use the three poles in series or parallel to control high-amperage single-phase loads.

Q: Is it compatible with thermal overload relays?

A: Absolutely. The CJX1 series is designed to be directly coupled with standard thermal overload relays (like the 3UA or LR series) to provide comprehensive motor protection.

Q: What is the significance of the "22" in CJX1-12/22?

A: The "22" denotes the built-in auxiliary contact configuration: 2 Normally Open (NO) and 2 Normally Closed (NC) contacts.


Product Description
Specification
Product name CJX1 AC contactor
Place of origin Zhejiang,China
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FAQ

Q1: Are you trading company or manufacturer ? A1: We are manufacturer.

Q2: Do you have your own R&D team? A2: Yes, we can customize products as your requirements.

Q3: How about the quality? A3: We have the best professional engineer and strict QA and QC system.

Q4: Can we be your distributor? A4: We are looking for distributor and agent all over the world.

Q5: How’s the package? A5: Normally are wooden case, but also we can pack it according to your requirements.

Q6: How’s the delivery time? A6: It depends on the quantity you need.

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Wuhan Anshan Electricity Co., Ltd.
Location R1305,Qiaoya International Plaza, Jiangxia District, Wuhan, Hubei, China, 430070
Contact Person Li

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