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20SD400NEN

20SD400NEN

Manufacturer: ALLEN BRADLEY

Condition: New and Unused, Surplus.

Price: Available on Request

Overview of Allen Bradley 20SD400NEN

The Allen Bradley 20SD400NEN is a PowerFlex SCR Bus Supply designed to provide reliable DC bus power in industrial motor control systems. It operates with an input voltage range of 400/480 VAC across three phases and delivers an output voltage between 540 and 650 VDC with a continuous current rating of 400 amps. This standalone SCR Bus Supply features a split crucible design and is built for stable performance in demanding automation environments. It is commonly used to support variable frequency drives and other motor control equipment requiring steady DC bus voltage. The 20SD400NEN is known for its robust construction and adherence to industrial standards, ensuring consistent and efficient power delivery for various manufacturing and processing applications.

Key Features of Allen Bradley 20SD400NEN

  • 400A current rating for high-capacity motor control applications
  • Input voltage compatibility of 400 to 480 VAC, three-phase power
  • Output voltage range of 540 to 650 VDC for stable bus supply
  • Standalone configuration for easy integration into existing systems
  • Split crucible design enhancing thermal management and reliability
  • Compliant with ROHS and relevant EMC certifications
  • Designed for use with PowerFlex family drives and motor controls
  • Compact footprint to optimize panel space utilization
  • Robust industrial-grade components ensure durability under heavy load
  • Supports consistent DC bus power supply vital for SCR-based drives

Technical Specs of 20SD400NEN

Specification Details
Input Voltage 400/480 VAC
Number of Phases 3 Phase
Output Voltage 540 - 650 VDC
Rated Current 400 A
Configuration Stand Alone
Design Split Crucible
Phase Frequency 50-60 Hz

Applications / Use Case

The Allen Bradley 20SD400NEN SCR Bus Supply is widely used in industrial automation settings where stable DC bus power is essential. It supports the operation of variable frequency drives (VFDs) within motor control centers and process automation lines. Suitable for applications in manufacturing plants, packaging machinery, and material handling systems, this bus supply ensures efficient and uninterrupted power conversion from AC to DC. It is ideal for installations requiring reliable motor speed and torque control, minimizing downtime and maintenance costs. The standalone design allows it to be integrated into existing systems without needing additional hardware, making it a preferred choice for retrofits and new installations in heavy industrial environments.

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