Motor Protection Circuit Breaker
Product Description
Motor Protection Circuit Breaker Overview
The Motor Protection Circuit Breaker (MPCB) is a specialized protective device designed to safeguard electric motors from damage caused by overload, short circuit, and phase failure. Utilizing advanced thermal-magnetic trip technology combined with an adjustable bimetallic strip, our MPCBs provide precise and reliable motor protection to ensure stable and safe operation in various industrial environments. Our MPCB product range covers rated currents from 0.1A to 80A and supports voltages up to 660V AC, making it suitable for a wide array of industrial applications including manufacturing plants, HVAC systems, pumping stations, compressors, and automated production lines.Technical Specifications
| Parameter | Description |
|---|---|
| Rated Voltage | AC 50/60Hz, up to 660V |
| Rated Current Range | 0.1A – 80A |
| Protection Types | Overload, Short Circuit, Phase Failure |
| Trip Characteristics | Thermal-magnetic with adjustable trip current |
| Mounting | Standard 35mm DIN rail |
| Terminal Type | Screw terminal for secure wiring |
| Additional Features | Optional auxiliary and fault signal contacts |
| Operating Temperature | -25°C to +70°C |
| Certifications | CE, CB, UKCA, and other international standards |
Key Features
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Overload Protection: Thermal trip element monitors motor current to prevent prolonged overload, protecting motor windings from damage.
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Short Circuit Protection: Magnetic trip mechanism provides instantaneous disconnection during short circuit faults, ensuring motor and circuit safety.
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Phase Failure Protection: Detects phase loss or imbalance in three-phase motors and disconnects power to prevent motor damage.
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Adjustable Trip Current: Allows customization of trip settings according to motor nameplate current for optimal protection.
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Auxiliary Contacts: Supports remote signaling and alarm integration for industrial automation systems.
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Easy Installation: Modular design with DIN rail mounting enables quick installation and maintenance.
Typical Applications
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Industrial Automation Lines: Protects large motor equipment, reducing downtime and increasing production efficiency.
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HVAC Systems: Safeguards fans and compressors, prolonging equipment lifespan.
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Water Treatment Pumps: Prevents pump motor failures due to overload or phase loss, ensuring continuous operation.
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Conveyor Systems: Protects conveyor motors from electrical faults, minimizing production interruptions.
Frequently Asked Questions (FAQ)
Q1: How do I select the right motor protection circuit breaker for my motor? A1: Choose an MPCB with a rated current slightly higher than your motor’s nameplate current to avoid nuisance trips during startup while ensuring effective protection against overload and short circuits.
Q2: What mounting options are available? A2: Our MPCBs are designed for standard 35mm DIN rail mounting, allowing for easy installation and replacement.
Q3: What is the purpose of auxiliary contacts? A3: Auxiliary contacts provide remote feedback and alarm signals, enabling integration with automated control systems for real-time motor status monitoring.
Q4: Are your products certified? A4: Yes, our MPCBs comply with CE, CB, UKCA, and other international certifications, ensuring high quality and safety standards.