Here's a detailed product description for a Thermal Overload Relay Unit, formatted in Markdown:
Robust & Reliable Thermal Overload Relay Unit - Essential Motor Protection
Protect your valuable electric motors from damaging overcurrents and prolong their operational life with our high-performance Thermal Overload Relay Unit. Engineered for reliability and precision, this essential device provides robust protection against phase loss, sustained overloads, and motor stalling, preventing costly downtime and ensuring system integrity.
Why Motor Protection is Crucial
Electric motors are the workhorses of industry. However, they are vulnerable to various electrical faults that can lead to overheating, winding damage, and catastrophic failure. An overload relay is the first line of defense, detecting conditions where the motor draws too much current for an extended period, thus safeguarding your investment and maintaining operational continuity.
Key Features & Benefits
Our Thermal Overload Relay Unit is designed with advanced features to deliver superior protection and ease of use:
Superior Motor Protection: Safeguards motors against sustained overloads, phase failure (single-phasing), and rotor lock, preventing costly damage to windings and mechanical components.
Wide Adjustment Range: Easily configurable current setting allows for precise matching to your motor's full-load current (FLA), ensuring optimal protection across various applications.
Selectable Reset Modes: Offers both manual and automatic reset options, providing operational flexibility to suit specific control logic and safety requirements.
Ambient Temperature Compensation: Maintains consistent tripping characteristics regardless of surrounding temperature fluctuations, ensuring reliable protection in diverse environments.
Integrated Test & Stop Functions: Includes a convenient TEST button to verify wiring and operational integrity without running the motor, and a STOP button for manual motor shutdown. A clear trip indicator provides immediate visual diagnosis.
Phase Loss Sensitivity: Advanced differential design quickly detects and responds to phase loss conditions, crucial for protecting three-phase motors from destructive single-phasing.
Flexible Mounting Options: Designed for seamless integration, often allowing direct mounting to contactors or standalone panel mounting with appropriate adapters, optimizing space and simplifying installation.
Robust Construction & Compliance: Built with high-quality, durable materials for extended operational life. Complies with relevant international standards (e.g., IEC 60947-4-1, UL 508 where applicable) for safety and performance.
Auxiliary Contacts: Equipped with normally open (NO) and normally closed (NC) auxiliary contacts for signaling trip conditions to control circuits, PLCs, or status indicators.
Technical Specifications
Specification
Value
Rated Current Range
[e.g., 0.1A - 100A] (Model Dependent)
Tripping Class
Class 10A (Standard for general motor applications)
Rated Insulation Voltage (Ui)
690V AC
Rated Impulse Withstand Voltage (Uimp)
6kV
Auxiliary Contacts
1 NO + 1 NC (Standard configuration)
Reset Type
Manual / Automatic Selectable
Ambient Operating Temperature
-25°C to +60°C
Storage Temperature
-40°C to +80°C
Mounting
Direct to Contactor / DIN Rail (with adapter)
Protection Degree
IP20 (Terminals)
Compliance
IEC 60947-4-1, UL 508, CE (where applicable)
Construction Material
Flame-retardant thermoplastics, high-grade alloys
(Note: Specific values may vary by model and manufacturer. Please refer to the product datasheet for precise specifications.)
Applications
Our Thermal Overload Relay Unit is indispensable in a wide range of industrial and commercial applications, including:
HVAC Systems: Protecting compressors, fans, and pumps.
Pumping Stations: Safeguarding water and wastewater pumps.
Conveyor Systems: Ensuring the continuous operation of material handling.
Industrial Fans & Blowers: Preventing motor burnout in ventilation systems.
Compressors: Protecting critical air and gas compression equipment.
Machine Tools: Essential for lathes, mills, and CNC machinery.
Material Handling Equipment: Cranes, hoists, and automated guided vehicles (AGVs).
General Industrial Automation & Control Panels: Any application utilizing AC induction motors.
Secure Your Motors Today!
Don't compromise on motor protection. Our Thermal Overload Relay Unit offers an unbeatable combination of precision, durability, and user-friendly features to keep your operations running smoothly and safely. Minimize downtime, extend the life of your critical equipment, and enhance overall system reliability with a product engineered for performance.
[Contact us now / Request a quote / Speak to a specialist] to learn more about how our Thermal Overload Relay Unit can enhance the safety and efficiency of your operations.
