Chint NXC-160 Contactor

The Chint NXC-160 Contactor is a high-performance AC contactor suitable for the field of industrial control.

 I. Core Parameters and Performance

1. Rated Current and Voltage

This contactor has a rated current of 160A, supports the AC-3 application category (suitable for motor control), and is compatible with multiple AC voltages such as 220V, 380V, and 400V (selection depends on specific models). For example, the model NXC-160/N 220V corresponds to a coil voltage of 220V AC, while the NXC-160 400V is suitable for 400V AC systems.

2. Contact Configuration and Service Life

The main contacts adopt a 3-pole normally open design, and the auxiliary contacts are provided with 2NC + 2NO (2 normally closed + 2 normally open) by default, which can meet the requirements of complex control logic. The electrical service life can reach 1.2 million times under the AC-3 category, and the mechanical service life is as high as 12 million times, making it suitable for scenarios with frequent operations.

3. Environmental Adaptability

The operating temperature range is -35℃ to +70℃, enabling adaptation to extreme climates; the protection class is IP50 (dust-proof), which can effectively resist dust intrusion and is suitable for high-dust environments such as textile and metallurgical industries.

 II. Structural Design and Installation

1. Modular Design

It adopts a compact structure and supports DIN rail or screw mounting. Its dimensions are 156mm × 127mm × 182mm (length × width × height), and the weight is approximately 3.46kg, facilitating dense installation in control cabinets. The main circuit wiring supports 1.5~6mm² hard wires or 1~4mm² flexible wires, and the control circuit can be connected with 1~2.5mm² wires, ensuring convenient wiring.

2. Safety Features

The coil has wide voltage adaptability (75%~120% of the rated voltage), which can reduce the risk of misoperation caused by voltage fluctuations; the contacts are made of low-resistance anti-welding materials, which reduce arc wear and improve reliability.

 III. Certifications and Standards

It complies with GB/T 14048.4/IEC 60947-4-1 (contactor standard) and GB 21518 (energy efficiency standard), and has passed the CCC certification. Some models may comply with CE certification (confirmation is required based on specific products).

 IV. Application Scenarios

1. Industrial Motor Control

It can directly control three-phase asynchronous motors with a current below 160A, such as controlling the start, stop, forward and reverse rotation of equipment like water pumps, fans, and compressors. It is often used in conjunction with NXR series thermal overload relays to form an electromagnetic starter, providing overload protection.

2. New Energy Field

It serves as a power switching component in photovoltaic inverters and energy storage systems, supporting high-frequency switching; in microgrid projects, it can participate in power distribution and load switching.

3. Lifting and Construction Machinery

It is suitable for frequent lifting operations of lifting equipment, has anti-vibration characteristics, and can withstand short-term overload (1.1 times the rated current), ensuring stability under harsh working conditions.

 V. Selection and Procurement Recommendations

1. Model Differentiation

Attention should be paid to the model suffix (e.g., NXC-160/N 220V), where "N" stands for reversible type, and the part after "/" indicates the coil voltage. For DC control, AC/DC universal models (e.g., NXC-265 220-240V AC/DC) can be selected.

2. Price and Supply

The reference market price is approximately 415~758 RMB (minimum order quantity: 1 unit), and the specific price fluctuates depending on voltage and channels. It is recommended to purchase via WhatsApp: 0086-13811255435 to ensure product quality and after-sales support.

3. Installation and Maintenance

Before installation, check whether the coil voltage matches; during wiring, ensure that the screws are tightened (the torque of the main circuit M4 screw is 1.2N·m). Regularly clean the contact surface to prevent dust from affecting electrical conductivity.