nr2-200g-200 chint thermal overload relay, 125a to 200a rated current

Why Choose the CHINT NR2-200G-200 Thermal Overload Relay?

The CHINT NR2-200G-200 is a heavy-duty thermal overload relay designed to provide dependable overload and phase-loss protection for large three-phase AC motors in industrial motor control systems. As part of the advanced CHINT NR2 thermal overload relay series, this relay delivers accurate motor protection and stable operation in demanding industrial and automation environments.

Designed for integration with compatible CHINT NC2 series contactors, the NR2-200G-200 features adjustable overload settings, temperature compensation and selectable manual or automatic reset functionality. Its robust three-phase bimetal construction ensures reliable tripping performance and long operational life even under varying load conditions.

With an adjustable current setting range of 125 A to 200 A, this thermal overload relay is ideally suited for protecting large motors used in pumps, compressors, conveyors, HVAC systems and industrial process machinery. The NR2-200 series supports independent mounting for installation inside industrial motor starter panels and MCC systems.

Key Advantages

• Heavy-duty thermal overload relay for industrial motor protection.
• 125 A to 200 A adjustable current range.
• Provides overload and phase-loss protection.
• Compatible with CHINT NC2 series contactors.
• Integrated manual and automatic reset functionality.
• Temperature compensation ensures stable tripping performance.

Key Features

• CHINT NR2 thermal overload relay series.
• 125 A to 200 A adjustable setting range.
• Three-phase bimetal thermal protection structure.
• Integrated phase-failure protection.
• Manual and automatic reset selector.
• Built-in test and stop buttons.
• Trip status indicator for operational monitoring.
• 1NO + 1NC auxiliary contacts.

Technical Specifications

• Manufacturer: CHINT
• Series: NR2 Thermal Overload Relay
• Model: NR2-200G-200
• Product type: Thermal overload relay
• Current setting range: 125 A to 200 A
• Current class: 200 A frame
• Protection type: Overload and phase-loss protection
• Tripping class: Class 10A
• Rated operational voltage: Up to 690 V AC
• Rated frequency: 50 / 60 Hz
• Auxiliary contacts: 1NO + 1NC
• Mounting type: Independent mounting
• Protection degree: IP20 when enclosed
• Compatible contactors: CHINT NC2 series
• Standards: IEC / EN 60947-4-1
• Mechanical life: ≥ 1,000,000 operations
• Electrical life: ≥ 100,000 operations

Reliable Motor Protection for Industrial Applications

Thermal overload relays are critical components in industrial motor starter circuits, protecting motors from overload conditions, phase imbalance and overheating. The NR2-200G-200 continuously monitors motor current and disconnects the motor circuit when excessive current persists beyond safe operating limits.

The CHINT NR2 series combines adjustable overload protection, dependable phase-loss detection and stable thermal tripping characteristics into a rugged industrial design suitable for OEM machinery, industrial automation systems and large-scale motor control panels.

Typical Applications

• Industrial motor starter assemblies.
• Large three-phase motor protection.
• Pumps, compressors and HVAC systems.
• Industrial conveyors and process machinery.
• Manufacturing and automation systems.
• OEM industrial control panels and MCCs.

Trusted by Industrial Engineers Worldwide

CHINT NR2 thermal overload relays are widely used in industrial automation and motor control systems where dependable overload protection and reliable motor safety are essential for continuous operation.