nr2-25-2.50 chint thermal overload relay, 1.60a to 2.50a rated current

Why Choose the CHINT NR2-25-2.50 Thermal Overload Relay?

The CHINT NR2-25-2.50 is a compact and highly reliable thermal overload relay designed to provide overload and phase-loss protection for three-phase AC motors in industrial motor control systems. As part of the trusted CHINT NR2 thermal overload relay series, this relay is engineered to protect motors from overheating, excessive current draw and phase failure conditions.

Designed for direct integration with compatible CHINT NC1, NC2, NC6 and NC7 contactors, the NR2-25-2.50 features continuously adjustable current settings, temperature compensation and both manual and automatic reset functionality. Its robust three-phase bimetal structure ensures stable and dependable tripping performance in demanding industrial environments.

With an adjustable current setting range of 1.60 A to 2.50 A, this thermal overload relay is ideal for protecting small motors and sensitive industrial control circuits used in automation systems, conveyors, pumps and machinery applications. The relay mounts directly onto compatible contactors for fast installation inside industrial control panels and starter assemblies.

Key Advantages

• Compact thermal overload relay for industrial motor protection.
• 1.60 A to 2.50 A adjustable current range.
• Provides overload and phase-loss protection.
• Compatible with CHINT NC1, NC2, NC6 and NC7 contactors.
• Integrated manual and automatic reset functionality.
• Temperature compensation for stable protection performance.

Key Features

• CHINT NR2 thermal overload relay series.
• 1.60 A to 2.50 A adjustable setting range.
• Three-phase bimetal thermal protection design.
• 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: NR2-25-2.50
• Product type: Thermal overload relay
• Current setting range: 1.60 A to 2.50 A
• Current class: 25 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: Plug-in mounting
• Protection degree: IP20 when enclosed
• Compatible contactors: CHINT NC1, NC2, NC6 and NC7 series
• Standards: IEC / EN 60947-4-1
• Temperature compensation: Yes
• Reset modes: Manual and automatic selectable

Reliable Motor Protection for Industrial Applications

Thermal overload relays are essential protection devices used in motor starter circuits to prevent motor damage caused by overload conditions, stalled motors or phase imbalance. The NR2-25-2.50 continuously monitors motor current and disconnects the circuit when excessive current persists beyond safe operating limits.

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

Typical Applications

• Industrial motor starter assemblies.
• Low-current motor protection.
• Automation and instrumentation systems.
• Small machinery and control circuits.
• OEM industrial control panels.
• Motor control centres and starter panels.

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.