Overload Protector Relay OL-007

Description

1. Product Overview

The Overload Protector Relay OL-007 is a precision-engineered electromechanical safety device designed to deliver fail-safe thermal and current protection for hermetically sealed refrigeration compressors and high-value motor systems . Engineered for continuous operation in demanding industrial environments, this relay integrates a snap-action bimetal disc actuator and an optional PTC relay to provide an instantaneous response to overcurrent and overtemperature conditions . The strategic advantage of the OL-007 lies in its ability to prevent catastrophic motor failure, thereby reducing unplanned downtime and extending asset life—a critical factor for operational efficiency and cost management.

2. Key Specifications & Technical Characteristics

• Actuation Mechanism: Snap-action bimetal disc for precise and rapid current and temperature response .

• Trip Temperature Range: 100°C to 150°C (configurable per requirement) .

• Reset Temperature Range: 50°C to 100°C .

• Electrical Ratings (Customizable):

  • Rated Voltage: 110 to 240 V AC/DC .

  • Rated Amperage: 1 to 10 A (resistive load) .

• Relay Parameters (PTC Variant): 135°C curie point; reset time < 120 seconds; 300 V / 7 A capacity .

• Dielectric Strength: High voltage resistance of 1800V for 5 seconds, ensuring robust insulation integrity .

• Packaging: Standard industrial cartons; bulk palletization available upon request.

• Shelf Life: Indefinite under recommended storage conditions (ambient temperature, dry environment).

3. Core Industrial Applications

• Primary Industry: HVAC and Refrigeration .

• Specific Use Cases:

  • Refrigeration Compressors: Protects hermetically sealed units in commercial and industrial cooling systems from locked-rotor conditions and electrical faults .

  • Small Motor Protection: Suitable for similar motor applications requiring reliable overcurrent shutdown.

• Performance Advantages: Unlike standard fuses, the OL-007 provides a resettable protection mechanism. Its bimetal disc design ensures a direct correlation between current draw and heat generation, allowing for faster trip times during excessive current surges compared to thermal-only devices .

4. Competitive Advantages

• Supply Reliability: Engineered for consistent performance with rigorous quality control on the bimetal calibration and electrical contacts.

• Customization: Flexible voltage and amperage configurations are available to match specific OEM motor requirements .

• Technical Support: Complete documentation, including trip curves and mounting specifications, available for engineering integration.

• Cost Efficiency: Provides a cost-effective solution against expensive compressor burnout, optimizing total cost of ownership for fleet operators and maintenance managers.

5. Commercial & Supply Information

• Minimum Order Quantity (MOQ): 500 Units.

• Bulk Order Capacity: Supported for large-scale OEM contracts and MRO supply agreements.