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Allen-Bradley 1336-CAP-SP11A
The Allen‑Bradley 1336‑CAP‑SP11A is a modular capacitor module designed by Rockwell Automation for use with the Allen‑Bradley 1336 series variable frequency drives (VFDs). It provides essential power factor correction (PFC) and filtering capabilities, helping to improve energy efficiency and reduce grid impact in industrial automation systems.
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1. Overview
The 1336‑CAP‑SP11A is a dedicated power factor correction capacitor module engineered specifically for Allen‑Bradley 1336 VFDs. It compensates for reactive power generated by inductive loads such as motors, delivering the following benefits:
- Improve system power factor
- Reduce energy waste
- Minimize harmonic distortion and grid disturbance
By stabilizing the electrical supply to the drive, this module contributes to smoother motor operation and longer equipment life.
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2. Key Specifications
- Capacitor Rating: 11 A
- Voltage Rating: Designed to match the operating voltage range of 1336 series VFDs
- Power Factor: 1.0 (full reactive power compensation)
- Dimensions: Compact modular form factor (approx. 150 mm × 100 mm × 50 mm), suitable for plug‑in installation
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3. Product Features
- Modular Design: Plug‑in connection with 1336 drives for quick installation and easy maintenance
- High Efficiency: Helps reduce motor inrush current and improve overall system efficiency through PFC technology
- Protected Operation: Some versions include built‑in overvoltage and overcurrent protection
- Seamless Compatibility: Optimized for the 1336 series, ensuring full compatibility with drive control logic and communication protocols
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4. Construction and Components
- Main Capacitor Bank: Delivers the required reactive power compensation
- Terminal Block: Provides secure electrical connections to the drive or power supply
- Housing: Industrial‑grade enclosure offering dust and moisture protection, suitable for harsh factory environments
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5. Typical Applications
- Industrial Automation: Used in motor‑driven applications such as machine tools, packaging lines, material handling systems, and robotics
- Energy Management: Helps facilities reduce reactive power charges and improve energy efficiency, especially in large plants with strict power quality requirements
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6. Installation and Maintenance
- Mounting Location: Install in a well‑ventilated, dry area, away from direct sunlight and excessive heat
- Wiring: Connect the module’s input terminals to the power supply and output terminals to the corresponding ports on the 1336 VFD
- Maintenance: Periodically check terminal tightness to prevent loosening due to vibration. Always disconnect power before replacement to avoid electric shock from stored capacitance.
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