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ABB 1SVR450081R0000 Contact Protection Relay

I. Product Overview

II. Technical Specifications

III. Application Scenarios

1. Industrial Control Panels: Protects contacts of relays, contactors, and motor starters, handling high inrush currents during motor startup.
2. Power Distribution Systems: Shields contacts of circuit breakers and switches from arc and current transient damage during tripping/operation.
3. Mechanical Manufacturing: Adapts to printing machines and automated equipment, ensuring stable control contacts under vibration/high-frequency switching.
4. Process Control Systems: Safeguards contacts of sensors and solenoid valves, preventing malfunctions caused by electrical noise/transient voltages (e.g., chemical production).

IV. Product Advantages

1. Strong Protection Performance: Avoids contact bounce, resists overcurrent/arcing, extends contact life, and reduces maintenance costs.
2. Flexible Timing: 0.05-30 seconds adjustable, adapting to contact characteristics of different equipment.
3. Reliable and Durable: Open-circuit principle + industrial-grade materials, anti-interference, and suitable for harsh environments.
4. Easy Installation: Compact and lightweight, fits various control cabinets without large-scale layout adjustments.
5. High Compliance: Meets international standards (CE, UL), suitable for global industrial scenarios.

V. Usage Notes

1. Ensure the input voltage is within the 220-240V AC range to prevent damage from abnormal voltage.
2. Do not exceed the 250V/4A load limit to avoid contact ablation due to overload.
3. Adjust the timing based on the bounce characteristics of the protected contacts; too short a delay is ineffective, while too long delays affect response.
4. Tighten terminals during installation and follow the manual for wiring to avoid loose connections or miswiring.
5. Regularly inspect the appearance (no damage/ablation), test operation, clean dust promptly, and replace immediately if faulty.

The structure and details of the product：

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