nc1m40-65 chint interlock to fit nc1-40 to nc1-65 contactors

Why Choose the CHINT NC1M40-65 Mechanical Interlock?

The CHINT NC1M40-65 is a robust mechanical interlock accessory designed for use with the CHINT NC1 series contactors. Engineered for industrial motor control and automation systems, this interlock prevents two contactors from closing simultaneously, ensuring safe and reliable operation in reversing and changeover applications.

Designed for compatibility with CHINT NC1-40 to NC1-65 contactors, the NC1M40-65 is widely used in reversing motor starters, star-delta starter assemblies and industrial control panels. The mechanical interlock physically blocks simultaneous operation of paired contactors, helping prevent short circuits and electrical faults within motor control systems.

Its compact and durable construction allows simple installation between two compatible contactors, making it suitable for OEM machinery, HVAC systems, conveyor systems and industrial automation applications requiring dependable interlocked switching functionality. The accessory supports both 3 pole and 4 pole NC1 contactors.

Key Advantages

• Reliable mechanical interlock accessory for industrial control systems.
• Compatible with CHINT NC1-40 to NC1-65 contactors.
• Prevents simultaneous operation of paired contactors.
• Ideal for reversing and star-delta starter applications.
• Supports both 3 pole and 4 pole contactors.
• Simple and compact installation design.

Key Features

• CHINT NC1 contactor accessory.
• Mechanical interlock module.
• Designed for NC1-40 to NC1-65 contactors.
• Compatible with 3P and 4P contactors.
• Suitable for reversing contactor assemblies.
• Supports star-delta motor starter systems.
• Compact and durable construction.
• Manufactured in accordance with IEC/EN 60947 standards.

Technical Specifications

• Manufacturer: CHINT
• Series: NC1 Contactor Accessories
• Model: NC1M40-65
• Product type: Mechanical interlock
• Compatible contactors: NC1-40 to NC1-65
• Compatible pole versions: 3 pole and 4 pole
• Application: Reversing and star-delta starters
• Mounting type: Between paired contactors
• Operation type: Mechanical interlocking
• Material: Industrial thermoplastic and metal components
• Standards: IEC/EN 60947-4-1
• Typical use: Motor control and industrial automation systems
• Guarantee: 5 years

Safe Interlocking for Industrial Motor Control

Mechanical interlocks are widely used in industrial motor control systems where two contactors must never operate simultaneously. In reversing starter applications, the interlock ensures forward and reverse contactors cannot close at the same time, protecting motors and electrical systems from phase-to-phase faults and equipment damage.

The CHINT NC1M40-65 is commonly used in reversing motor starters, star-delta starters and industrial automation systems due to its reliable operation, compact design and compatibility with CHINT NC1 contactors. Its durable construction ensures dependable long-term performance within demanding industrial environments.

Typical Applications

• Reversing motor starter assemblies.
• Star-delta motor starters.
• Industrial automation systems.
• HVAC and ventilation equipment.
• Conveyor and process control systems.
• OEM electrical control panels.

Trusted by Industrial Control Engineers

CHINT mechanical interlocks are widely trusted by industrial engineers and panel builders for safe contactor interlocking, dependable operation and reliable integration within industrial motor control systems.