Chint Contactor NC1-1201

 Chint Contactor NC1-1201 is a 3-pole AC contactor specifically designed for industrial automation. It is suitable for frequent control of motors or other inductive loads.

 1. Basic Parameters

- Rated Current: 12A (under AC-3 duty category, it can control a 5.5kW motor at 380V).

- Control Voltage: Supports multiple specifications such as 220VAC and 48VAC, with a coil frequency of 50/60Hz.

- Contact Configuration: 3 normally open (NO) main contacts + 1 normally closed (NC) auxiliary contact. The auxiliary contact has a rated current of 10A and can be used for signal feedback or interlock control.

- Mounting Method: Supports 35mm standard DIN rail mounting or screw fixing. The inclination of the mounting surface shall not exceed ±5°, making it suitable for compact distribution cabinets.

 2. Certifications and Standards

- Domestic Certifications: Certified by CCC (China Compulsory Certification) and compliant with the GB14048.4 standard.

- International Certifications: Some models have obtained international certifications such as CE, UL, and VDE, making them applicable to global markets.

 3. Performance Features

- High Reliability: Silver alloy contact material enhances electrical conductivity and corrosion resistance. The mechanical lifespan reaches 10 million operations, and the electrical lifespan under AC-3 is 1 million operations.

- Wide Voltage Adaptability: The coil pull-in voltage range is 85%-110% of the rated voltage, and the release voltage range is 20%-75% of the rated voltage, adapting to scenarios with large voltage fluctuations.

- Modular Expansion: Can be equipped with F4 auxiliary contact sets (up to 4 sets), F5 air time delay modules, or thermal relays to achieve functions such as time delay control and overload protection.

 4. Application Scenarios

- Motor Control: Commonly used for start-stop and forward-reverse control of three-phase asynchronous motors. When combined with a thermal relay, it can form an electromagnetic starter.

- Industrial Automation: Serves as an executive component in PLC control systems to realize remote control of equipment and automated processes.

- Air Conditioning and Refrigeration Equipment: Some models (e.g., NC1-1201 220V for air conditioning) are suitable for controlling compressors and fans in HVAC systems.

 5. Model Selection and Replacement

- Alternative Models:

  - Same Brand: NC1-1210 (with 1NO + 1NC auxiliary contacts), NC1-1204 (4-pole configuration).

  - International Brands: Schneider LC1D1201, ABB AF12-30-01. These models have compatible parameters and similar mounting dimensions.

- Precautions:

  - Select the rated current according to the load type (AC-3/AC-4). For AC-4 loads (e.g., welding machines), derating is required during use.

  - Ensure the control voltage matches the actual circuit to avoid coil burnout.

 6. Price and Purchase

- Market Reference Price: The 220VAC model is approximately 26.89 RMB per unit (non-air conditioning dedicated), and the 48VAC model is approximately 71.51 RMB per unit (DC coil). Prices vary by channel and order quantity.

- Purchase Channels: Available via Chint WhatsApp: 0086-13811255435. It is recommended to purchase through authorized distributors to ensure genuine products.

 7. Installation and Maintenance

- Wiring Specificaions: For the main circuit, 2.5mm² flexible wires or 4mm² rigid wires are recommended. The auxiliary contacts support 1mm² wires, and the tightening torque is 0.8-1.2N·m.

- Maintenance Recommendations: Regularly clean the oxide layer on the contact surface, check the coil temperature rise (not exceeding 60K), and ensure the mechanical interlock mechanism operates flexibly.

For further technical support, please refer to the Instruction Manual for NC1-09～95 AC Contactors officially released by Chint or contact its customer service team.