ABB 1MRB150081R0001 – Technical and Functional Overview
Technical Parameters
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Parameter
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Specification
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Device Type
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Motor Protection Circuit Breaker (MPCB) or Motor Starter.
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Rated Current
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Adjustable thermal overload relay, typically rated for 0.1–25 A (varies by model).
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Rated Voltage
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Operational voltage up to 690 V AC (50/60 Hz).
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Breaking Capacity
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High short-circuit breaking capacity, suited for industrial motor protection.
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Standards Compliance
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Complies with IEC/EN 60947-2, IEC/EN 60947-4-1, and CE marked.
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Enclosure Rating
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IP20 (standard), protecting against accidental contact but not moisture.
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Ambient Temperature
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Operates in -25°C to +60°C environments.
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Mechanical Durability
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Designed for >1 million mechanical cycles, ensuring long-term reliability.
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Electrical Durability
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>100,000 electrical cycles under rated load.
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Auxiliary Contacts
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Configurable with NO/NC (Normally Open/Normally Closed) auxiliary contacts.
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Functional Overview
- Motor Protection
- Provides thermal overload protection to prevent motor damage from excessive current, phase loss, or unbalanced loads.
- Short-circuit protection ensures rapid disconnection during faults.
- Adjustable Settings
- Thermal relay adjustments allow fine-tuning of trip thresholds based on motor specifications.
- Integration Flexibility
- Compatible with industrial control systems and can be combined with contactors for automated motor control.
- Diagnostic Indication
- Visual indicators (e.g., LED status lights) for fault detection (overload, short circuit).
- Manual and Remote Control
- Supports manual operation (local start/stop) and integration with PLC/DCS systems for remote control.
- Compact Design
- Space-saving construction for easy installation in control panels or motor control centers (MCCs).
- Safety Features
- Isolation capabilities ensure safe maintenance by physically disconnecting power.
Typical Applications
- Industrial Motors: Protection for pumps, fans, compressors, and conveyor systems.
- HVAC Systems: Safeguarding motors in heating, ventilation, and air conditioning units.
- Manufacturing: Integration into assembly lines, CNC machinery, and robotic systems.
- Energy Sector: Used in wind turbines, solar farms, and power distribution systems.
The ABB 1MRB150081R0001 combines robust motor protection with user-friendly configurability, making it essential for ensuring operational safety and efficiency in industrial and commercial applications. Its compliance with international standards and high durability make it a reliable choice for demanding environments.
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