Why Choose the CHINT NR2-25-25 Thermal Overload Relay?
The CHINT NR2-25-25 is a reliable thermal overload relay designed to provide dependable motor protection against overload conditions, phase loss and excessive current in industrial electrical systems. As part of the proven CHINT NR2 thermal overload relay series, it provides accurate protection for contactors, motors and automation equipment.
This overload relay is designed for integration with compatible CHINT contactors and motor starter assemblies, providing adjustable current protection and reliable operation in demanding industrial environments. The NR2 series features adjustable current settings, temperature compensation, trip indication and manual/automatic reset options for flexible motor protection.
With an adjustable overload protection range of 17–25 A, the NR2-25-25 is suitable for protecting medium-sized three-phase motors where accurate current monitoring and dependable thermal protection are required.
Key Advantages
Reliable thermal overload protection for electric motors.
17–25 A adjustable current range for accurate motor protection.
Protects against motor overload and phase loss conditions.
Compatible with CHINT NC1 series contactors and motor starter systems.
Compact design for straightforward electrical panel installation.
Suitable for industrial automation and machinery applications.
Key Features
CHINT NR2 thermal overload relay series.
Model NR2-25-25.
Adjustable thermal overload protection.
17–25 A overload adjustment range.
Phase loss protection function.
Manual and automatic reset selector.
Trip indicator and test/stop button functionality.
Designed for motor starter applications.
Compatible with CHINT NC1 contactors.
Reliable Motor Protection for Industrial Systems
Thermal overload relays such as the CHINT NR2-25-25 monitor motor current and disconnect control circuits when abnormal overload conditions occur. This helps prevent overheating, reduces equipment damage and improves the reliability of industrial electrical installations.
The CHINT NR2 series is designed for use with motor starters and contactors, providing a practical protection solution for automation engineers, panel builders and industrial maintenance teams.
Typical Applications
Industrial motor protection systems.
Pumps and water handling equipment.
Fans and ventilation systems.
Conveyors and material handling machinery.
Production line equipment.
OEM electrical control panels.
Technical Specifications
Manufacturer
CHINT
Series
NR2 Thermal Overload Relays
Model
NR2-25-25
Product type
Thermal overload relay
Adjustment range
17–25 A
Rated insulation voltage
690 V AC
Frequency
50 / 60 Hz
Tripping class
10A
Mounting type
Contactor mounting / independent mounting
Protection function
Motor overload and phase loss protection
Auxiliary contacts
1NO + 1NC
Standard
IEC/EN 60947-4-1
Frequently Asked Questions
What is the CHINT NR2-25-25 used for?
The CHINT NR2-25-25 is a thermal overload relay used to protect electric motors against overload and phase loss conditions.
What current range does the NR2-25-25 support?
The NR2-25-25 provides an adjustable overload protection range of 17–25 A.
What type of protection does this relay provide?
The relay provides thermal overload protection and phase loss protection for industrial motor applications.
Which series does the NR2-25-25 belong to?
The NR2-25-25 belongs to the CHINT NR2 thermal overload relay series.
Where is this overload relay typically installed?
The NR2-25-25 is typically installed with CHINT contactors or inside motor starter assemblies within industrial control panels.
Trusted by Industrial Automation Professionals
CHINT NR2 thermal overload relays are widely used by machine builders and electrical engineers to provide dependable motor protection and improve the reliability of industrial automation systems.
Manufacturer
CHINT
Series
NR2 Thermal Overload Relays
Model
NR2-25-25
Product type
Thermal overload relay
Adjustment range
17–25 A
Rated insulation voltage
690 V AC
Frequency
50 / 60 Hz
Tripping class
10A
Mounting type
Contactor mounting / independent mounting
Protection function
Motor overload and phase loss protection
Auxiliary contacts
1NO + 1NC
Standard
IEC/EN 60947-4-1
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...