81003-437-51-R

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Overview of Allen Bradley 81003-437-51-R

The Allen Bradley 81003-437-51-R is a high-capacity Silicon Controlled Rectifier (SCR) designed for heavy-duty industrial power applications. Manufactured by Rockwell Automation, this SCR is engineered for reliable performance in demanding environments, supporting currents up to 815 amps and withstanding voltages up to 6.5 kilovolts. The W.CONN (Wire Connection) terminal style ensures flexible installation and secure electrical contact. With a factory-new, sealed-box warranty and global supply chain availability, the 81003-437-51-R is a critical component for industrial drive systems, power conversion, and motor control setups.

Key Features of Allen Bradley 81003-437-51-R

  • High current handling: Rated for 815A, making it suitable for large-scale industrial processes.
  • High voltage capacity: Withstands up to 6.5kV, ensuring safe operation in high-voltage circuits.
  • Wire connection (W.CONN) design: Facilitates secure and flexible installation in various panel layouts.
  • Manufactured by Rockwell Automation: Trusted reliability and global technical support.
  • Factory sealed, new in box: Guaranteed authentic and unused, with up to 24-month warranty.
  • Global shipping: Available for fast dispatch worldwide, minimizing downtime in critical applications.
  • Industrial-grade construction: Built for continuous operation in harsh environments.
  • Compatible with Allen Bradley PowerFlex and drive systems: Integrates with existing Rockwell Automation architectures.
  • Long-term parts availability: Supported by broad distributor networks.
  • Technical documentation included: Reference part number 81003-437-51-R for traceability and support.

Technical Specs of Allen Bradley 81003-437-51-R

Part Number 81003-437-51-R
Type Silicon Controlled Rectifier (SCR)
Current Rating 815A
Voltage Rating 6.5kV
Terminal Style W.CONN (Wire Connection)
Warranty Up to 24 months (varies by supplier)

Applications / Use Case

The Allen Bradley 81003-437-51-R SCR is primarily used in medium and high-voltage drive systems, including the PowerFlex 7000 family of AC drives. Its high current and voltage ratings make it ideal for controlling large industrial motors, power conversion in renewable energy systems, and heavy machinery. This SCR is also found in steel, mining, oil and gas, and water treatment plants—anywhere reliable, high-power semiconductor switching is required. Its robust construction and compatibility with Rockwell Automation systems help reduce maintenance cycles and increase operational uptime in critical industrial processes.

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81003-437-51-R

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Does it come with a warranty?

Yes, All products are offered wth 1-Year warranty.

What is the condition of the product?

All products sold are New & Unused.

How fast is shipping?

All products are delivered within 2-8 business days depending on our stock location.

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