Havells Thermal Over Load Relay 300A – 500A

Havells Thermal Overload Relay 300A – 500A | Ultra Heavy-Duty Motor Protection

The Havells Thermal Overload Relay 300A – 500A is a top-grade industrial protection device designed to safeguard very large motors operating in heavy-duty industries. Built with advanced Havells engineering, it ensures reliable protection against overload, overheating, single phasing, and current imbalance, thereby extending motor life and improving system safety.

With its wide adjustable current range of 300A to 500A, this relay is ideal for extra-large industrial motors powering crushers, compressors, blowers, HVAC plants, rolling mills, water treatment plants, cement factories, steel plants, and conveyor systems. Its precision bimetallic thermal sensing technology delivers quick and accurate tripping during overload situations, reducing downtime and preventing costly equipment failures.

Engineered for direct compatibility with Havells contactors, this relay is an essential component of motor starter panels, control systems, and automation setups. It also offers manual and automatic reset modes, giving operators flexibility in managing motor protection depending on the application requirements.

Designed with rugged construction, the Havells Thermal Overload Relay 300A – 500A performs reliably in harsh industrial environments, making it the perfect choice for industries where uninterrupted performance and high efficiency are critical.

🔹 Key Features

• Adjustable Current Range: 300A – 500A

• Advanced Bimetallic Sensing: Provides precise overload tripping.

• Phase Failure Protection: Safeguards motors from single phasing.

• Reset Options: Manual and automatic reset modes.

• Direct Mounting Design: Seamlessly integrates with Havells contactors.

• Rugged & Durable Build: Engineered for ultra heavy-duty use.

🔹 Benefits

1. Ultimate Motor Protection – Prevents overheating, overload, and imbalance failures.

2. Extended Motor Life – Reduces wear and costly damage.

3. Operational Efficiency – Minimizes downtime in industrial systems.

4. Cost Savings – Lowers repair and replacement expenses.

5. Havells Reliability – Backed by trusted engineering and industrial performance.

🔹 Applications

• Crushers and conveyors

• Large compressors and blowers

• Steel plants and cement industries

• Water treatment and pumping stations

• HVAC and refrigeration plants

• Rolling mills and large-scale manufacturing units

🔹 Technical Specifications

• Brand: Havells

• Model: Thermal Overload Relay 300A – 500A

• Current Range: 300 – 500 Amperes

• Protection Features: Overload, overheating, phase failure, imbalance

• Reset Options: Manual / Automatic

• Mounting: Direct mounting with Havells contactors

✅ The Havells Thermal Overload Relay 300A – 500A is built for the toughest industrial challenges, ensuring reliable motor protection and long-lasting performance.