nr2-25-10 chint thermal overload relay, 7.00a to 10a rated current

Why Choose the CHINT NR2-25-10 Thermal Overload Relay?

The CHINT NR2-25-10 is a dependable thermal overload relay designed to protect three-phase AC motors from overload, stalled rotor and phase failure conditions in industrial motor control systems. As part of the proven CHINT NR2 thermal overload relay range, this device delivers accurate and stable motor protection for automation equipment, machinery and electrical control panels.

Featuring a precision bimetal thermal tripping mechanism, the NR2-25-10 continuously monitors motor current and disconnects the circuit when unsafe operating conditions occur. Its integrated phase failure sensitivity and adjustable overload setting help improve equipment reliability while reducing maintenance costs and unplanned downtime.

With an adjustable current range of 7 A to 10 A, the NR2-25-10 is suitable for industrial motors used in pumps, conveyors, compressors, fans and production machinery. The relay is engineered for direct installation onto compatible CHINT contactors, enabling compact and efficient motor starter assemblies.

Key Advantages

• Reliable thermal overload and phase failure protection.
• Adjustable current range from 7 A to 10 A.
• Compatible with CHINT NC1 and related contactor series.
• Integrated manual and automatic reset modes.
• Compact design for industrial motor starter panels.
• Temperature compensated tripping for consistent operation.

Key Features

• CHINT NR2 thermal overload relay series.
• 7 A to 10 A adjustable overload current setting.
• Three-phase thermal bimetal protection.
• Integrated phase loss sensitivity.
• STOP and TEST push buttons.
• Manual and automatic reset selector.
• 1 NO + 1 NC auxiliary contacts.
• Direct mounting onto compatible CHINT contactors.

Technical Specifications

• Manufacturer: CHINT
• Series: NR2 Thermal Overload Relay
• Model: NR2-25-10
• Product type: Thermal overload relay
• Current adjustment range: 7 A to 10 A
• Rated insulation voltage: 690 V AC
• Frequency: 50 / 60 Hz
• Tripping class: Class 10A
• Protection functions: Overload and phase failure protection
• Auxiliary contacts: 1 NO + 1 NC
• Reset mode: Manual / Automatic selectable
• Mounting type: Direct contactor mounting
• Protection rating: IP20 when installed
• Compliance standards: IEC/EN 60947-4-1

Reliable Motor Protection for Industrial Equipment

Thermal overload relays are critical for protecting electric motors against overheating caused by excessive current draw, mechanical overload or phase imbalance. The CHINT NR2-25-10 continuously monitors motor current and trips the connected contactor when overload conditions are detected.

The NR2 series is widely used in industrial automation systems, motor control centres and OEM machinery where dependable motor protection and compact installation are essential. Its direct mounting format simplifies panel construction and maintenance.

Typical Applications

• Industrial motor starter assemblies.
• Conveyors and material handling systems.
• Pumps, compressors and ventilation systems.
• Manufacturing and processing machinery.
• HVAC motor protection applications.
• OEM automation and industrial control systems.

Trusted by Industrial Engineers Worldwide

CHINT NR2 thermal overload relays are widely used in industrial automation and machinery applications to deliver dependable overload protection and long-term motor reliability.