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Allen-Bradley 1336-B003-EAD-L
The Allen-Bradley 1336-B003-EAD-L is an overcurrent relay belonging to the 1336 Series (Power Monitoring & Control). It is specifically designed for use with PowerFlex Series inverters or PowerFlex S Series AC drives (such as the 20DD156A0ENNANANE), providing precise overload protection for motors. This relay plays a critical role in safeguarding motor systems by detecting overcurrent conditions and initiating protective actions to prevent equipment damage.
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Core Specifications
- Relay Function: Overcurrent detection
- Rated Voltage: Designed for 240V AC or 480V AC three-phase power systems
- Operation Delay: Features electromagnetic and thermal overload delay characteristics, enabling distinction between instantaneous short circuits and continuous overloads
- Form Factor: Modular design for easy installation on racks in industrial control cabinets (e.g., 1336 chassis series)
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Product Features
- Modular Design: Can coexist with other relays in the 1336 Series (such as overvoltage relays and undervoltage relays) in the same chassis, saving space
- High Reliability: Utilizes industrial-grade components, enabling long-term operation in harsh environments such as high temperature and humidity
- Strong Compatibility: Exclusively designed for Allen-Bradley inverters, enabling seamless integration into PowerFlex Series motor drive systems
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Structure and Composition
- Module Body: Core overcurrent detection circuit, including thermal relays and/or electromagnetic coils
- Terminal Blocks: Used for connecting power phase lines (U, V, W) and load phase lines
- Housing: Metal or plastic housing with protection rating to prevent dust and moisture intrusion
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Application Areas
- Motor Protection: Widely used in motor control cabinets of industrial equipment such as textile machinery, food processing, and plastic machinery
- Industrial Automation: Serves as a protective component in motor control circuits, often used in conjunction with inverters (such as PowerFlex 525) to ensure that the power supply is automatically cut off when the motor is overloaded, preventing burnout
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Installation and Maintenance
Installation
It is recommended to install in a well-ventilated and dry control cabinet to ensure sufficient heat dissipation space. During installation, refer to the wiring diagram in the product manual to correctly connect the power phase lines and load phase lines.
Maintenance
Regularly check the tightness of the terminal blocks to ensure there is no loosening or oxidation. For thermal overload relays, regularly check for insensitivity due to dust or aging.
Call to Action
For more information on the Allen-Bradley 1336-B003-EAD-L overcurrent relay, including technical documentation and quotation requests, please contact our professional team.
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