Product Overview
The JR28-25 thermal overload relay is designed to protect electric motors against overload and phase failure conditions. It works together with contactors to disconnect the motor supply when excessive current is detected, thereby preventing overheating and motor damage. This overload relay is suitable for industrial control panels and motor starter applications.
Key Features
• Reliable thermal overload protection for electric motors
• Wide adjustable current range to suit different motor ratings
• Designed to work with AC contactors
• Manual and automatic reset options
• Trip indicator for easy fault identification
• Compact design for panel and DIN rail mounting
• Stable performance in industrial environments
Technical Specifications
• Product type: Thermal overload relay
• Product model: JR28-25 (equivalent to LR2 D13)
• Rated current range options:
1 A, 1.6 A, 2.5 A, 4 A, 6 A, 8 A, 10 A, 13 A, 18 A, and 25 A
• Overload protection type: Thermal bimetal
• Auxiliary contacts: 1 NO and 1 NC
• Reset mode: Manual or automatic reset
• Mounting type: Contactor mounted or DIN rail mounted
• Application voltage: Up to 690 V AC
• Phase protection: Phase failure sensitive
Typical Applications
• Motor protection circuits
• DOL and star delta motor starters
• Industrial control panels
• Pump and compressor control systems
• Conveyor and machine drives
Package Includes
• One JR28-25 thermal overload relay
Installation Notes
Select the correct current setting based on the motor rated current. Adjust the overload relay dial accordingly so that the relay will trip when an overload condition occurs, thereby protecting the motor and associated equipment.
