Chint AC Contactor NXC-50

El Contactor de CA Chint NXC-50 is a low-voltage electrical appliance suitable for industrial control scenarios, mainly used for frequent switching of AC circuits and motor control. The following is a summary of its core information:

1. Parámetros principales y rendimiento
2. Rated Current and Voltage

Rated working current: 50A (under AC-3 duty), capable of controlling a 22kW motor in 380V/400V systems.

Rated insulation voltage: 690V, with a maximum withstand impulse voltage of 8kV, adapting to a wide voltage range (220V–690V).

2. Coil Parameters Contactor CHINT NC1-09

Voltage options: Supports multiple AC voltages such as 24V, 36V, 48V, 110V, 127V, 220V, 380V, covering global mainstream industrial standards.

Power consumption: 50–70VA during startup, ≤11.4VA during holding; low-power design reduces energy loss.

Action range: Pull-in voltage is 70%–120% of the rated voltage, and release voltage is 20%–65%, ensuring reliable operation in voltage-fluctuating environments.

3. Configuración de contacto Schneider-MCCB-NSX250F-4P-250A

Main contacts: 3-pole normally open (3NO), supporting direct control of three-phase motors.

Auxiliary contacts: Standard configuration is 1 normalmente abierto + 1 normalmente cerrado (1NO+1NC); some models can be optionally equipped with more auxiliary contacts (p.ej., 2NO+2NC) para cumplir con requisitos de control complejos.

4. Lifespan and Reliability

Mechanical lifespan: 12 millones de veces; electrical lifespan under AC-3 duty reaches 1.2 millones de veces, suitable for high-frequency operation scenarios.

Certificaciones: Passed CCC and CE certifications, compliant with international standards such as GB/T 14048.4 y CEI 60947-4-1, ensuring quality and safety. Precio de los disyuntores Schneider

1. Escenarios de aplicación

– Control de motores: Widely used for start-stop control of equipment such as fans, bombas de agua, and compressors; can be combined with NXR series thermal overload relays to form electromagnetic starters for overload protection.

– Automatización Industrial: Suitable for electrical control systems of production lines, machine tools, cranes, etc., supporting remote control and sequential logic.

– Power Systems: Used for on-off control of circuits in power distribution systems, compatible with 50Hz/60Hz systems, and adaptable to different power environments.

III. Installation and Environmental Requirements Disyuntores de CC de la serie NB1-63DC de Chint Precio

1. Métodos de instalación

Supports 35mm standard DIN rail installation or screw fixing, compatible with the universal installation dimensions (102×129×150mm) of the NXC-06M–100 series.

Terminal blocks support 1.5–10mm² hard wires or prefabricated flexible wires, with a tightening torque of 1.85–9N·m to ensure reliable connections.

2. Condiciones ambientales Precio del protector contra sobretensiones CHINT

Temperature range: -5°C–40°C (standard type); some models can be extended to -35°C–+70°C (wide-temperature type).

Humedad: Relative humidity ≤90% at 20°C; avoid use in dew or corrosive environments.

Altitude and pollution degree: Altitude ≤2000m, pollution degree 3 (allowing general conductive pollution).

1. Model Types and Accessories
2. Meaning of Model Suffixes

/norte: Indicates a reversible contactor, supporting forward and reverse motor control (p.ej., NXC-50/N).

Other suffixes: Por ejemplo, “24V,” “380V,” etc., indicate coil voltage; “1NO+1NC,” etc., indicate auxiliary contact configurations.

2. Compatible Accessories

Thermal overload relays: Compatible with NXR-100 series (37–50A) or JRS1 series for overload protection.

Expansion modules: Optional air delay heads, auxiliary contact groups, etc., to enhance functional expandability.

1. Price and Procurement

– Reference Prices: The price range is approximately 100–220 RMB, varying by coil voltage and sales channel. Por ejemplo:

24V model: Aproximadamente 110 RMB.

220V model: Approximately 103.98–119.53 RMB.

380V model: Approximately 150–200 RMB.

– Canales de adquisiciones:

Internacional: Purchasing through platforms by contacting WhatsApp: 0086-13811255435, or contacting Chint’s overseas distributors (logistics timeliness needs confirmation).

1. Precauciones de uso
2. Wiring and Maintenance

Confirm that the coil voltage matches the control circuit before installation to avoid coil burnout due to incorrect wiring.

Regularly inspect contact wear to ensure good contact; clean dust from the housing to prevent poor heat dissipation.

2. Protección de seguridad

Protection level IP20, which can prevent the intrusion of solids larger than 12mm, but avoid naked use in humid or dusty environments.

Power off during operation to avoid direct contact with live parts and ensure personal safety.

The technical parameters of Chint AC Contactor NXC-50 can be confirmed through the 2025 edition product manual and official documents. The following is a detailed summary based on the latest information:

1. Parámetros eléctricos básicos
2. Main Circuit Performance

Rated working current (Ie): 50A (AC-3 duty), capable of controlling a 22kW motor in 380V/400V systems.

Rated insulation voltage (Ui): 690V, with a maximum withstand impulse voltage of 8kV, covering the wide voltage range of 220V–690V.

Short-time withstand current: puede soportar 8 veces la corriente nominal (400A) para 10 seconds in cold state, adapting to transient overload conditions.

2. Coil Parameters

Voltage range: Supports AC voltages such as 24V, 36V, 48V, 110V, 127V, 220V, 380V, with frequencies of 50Hz/60Hz.

Power consumption characteristics: 50–70VA during startup, ≤9.5VA during holding, saving about 60% energy compared to traditional contactors.

Action range: Pull-in voltage is 70%–120% of the rated value, and release voltage is 20%–65%, adapting to ±30% voltage fluctuations.

3Configuración de contacto

Main contacts: 3-pole normally open (3NO), made of silver alloy with contact resistance ≤50mΩ, supporting direct control of three-phase loads.

Auxiliary contacts: Standard configuration is 1NO+1NC; optional expansion modules can achieve 2NO+2NC to meet complex logic control needs.

1. Parámetros mecánicos y ambientales
2. Mechanical Performance

Lifespan indicators: Mechanical lifespan of 12 millones de veces; electrical lifespan under AC-3 duty reaches 1.2 millones de veces, suitable for high-frequency operation scenarios (p.ej., fan start-stop).

Action time: Closing time 12–40ms, opening time 4–25ms, with response speed 15% higher than traditional models.

2. Instalación y dimensiones

Installation methods: Supports 35mm DIN rail or screw fixing, with installation dimensions of 102×129×150mm, compatible with the universal base of NXC-06M–100 series.

Terminal blocks: Main circuit supports 1.5–10mm² hard wires or prefabricated flexible wires, with a tightening torque of 1.85–9N·m, suitable for crimp-type copper lugs.

3. Adaptabilidad ambiental

Temperature range: Standard type -5°C–+40°C; wide-temperature type (p.ej., NXC-50XM) up to -40°C–+70°C, adapting to extreme industrial environments.

Humidity and altitude: Relative humidity ≤90% at 20°C; altitude ≤2000m (wide-temperature type ≤3000m); pollution degree 3 (general conductive pollution).

III. Certificaciones y estándares

– Domestic certifications: Certificación CCC aprobada, compliant with national standards such as GB/T 14048.4-2016 y GB 21518-2008.

– International certifications: Obtained CE certification, meeting IEC 60947-4-1:2016 estándares, but UL certification is not explicitly mentioned.

– Requisitos medioambientales: Compliant with RoHS directive, lead-free design, adapting to EU market access requirements.

1. Model Types and Accessories
2. Explanation of Model Suffixes

/norte: Reversible contactor (p.ej., NXC-50/N), supporting forward and reverse motor control, requiring a double-contactor interlock circuit.

XM: Wide-temperature type (p.ej., NXC-50XM), with extreme working temperature extended to -40°C–+70°C, suitable for outdoor or low-temperature environments.

2. Compatible Accessories

Thermal overload relays: Compatible with NXR-100 series (37–50A) or JRS1-63 series, providing overload protection with a breaking capacity of up to 50kA.

Expansion modules: Optional air delay heads (0.1–300 seconds), mechanical interlock modules (for reversible control), etc., to enhance functional expandability.

1. Price and Procurement

– Reference Prices: Prices vary significantly by coil voltage. Por ejemplo:

24V model: Approximately 106–110 RMB.

220V model: Approximately 103–176 RMB.

380V model: Approximately 150–263 RMB.

1. Precauciones de uso
2. Especificaciones de cableado

Confirm that the coil voltage matches the control circuit before installation to avoid coil burnout due to incorrect wiring.

Ensure correct connection of phase and neutral wires in the main circuit to avoid single-phase operation.

2. Recomendaciones de mantenimiento

Inspect contact wear every 500 hours of operation; replace contacts when the wear thickness exceeds 1/3 of the original thickness.

Clean dust from the housing to ensure unobstructed heat dissipation holes and prevent lifespan reduction due to excessive temperature rise.

3. Protección de seguridad

Protection level IP10 (NXC-40–100), requiring use with a distribution box to avoid direct exposure to dust or humid environments.

Power off and test for electricity during operation to prevent electric shock risks.

For further verification of parameters, please visit Chint Electric’s official website to download the 2025 NXC Series AC Contactor Manual or contact technical support for datasheets and selection guides.