Allen-Bradley 81001-355-71-R 1 SCR 350A 6.5KV W/CONN-PKG

SKU 81001-355-71-R

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12-month warranty
Free returns within 30 days

Manufacturer: Allen-Bradley
Product No.: 81001-355-71-R
Country of origin:United States
Product Type: Thyristors
Barcode: 8537101190
Payment: T/T, Western Union
Weight: 4500g
Dimensions: 31.2cm x 12.8cm x 12.8cm
Shipping port: Xiamen
Warranty: 12 months

Description

The Allen-Bradley 81001-355-71-R is a high-power Silicon Controlled Rectifier (SCR) thyristor component designed for medium voltage variable frequency drives and industrial power conversion systems. It functions as a solid-state controlled semiconductor switch to manage high-capacity power rectification, phase control, and current regulation. This specific part is supplied with its corresponding connector package (W/CONN-PKG) to ensure secure, low-resistance electrical connections within heavy-duty power assemblies. Engineered to meet the demanding requirements of industrial power environments, it provides reliable switching performance and robust voltage blocking capabilities.

Features

High-Voltage Rating: Designed to handle demanding voltage blocking applications up to 6.5KV.
Integrated Connector Package: Includes the matching electrical connector package for secure terminal interfacing and minimized thermal-contact degradation.
Hermetic and Durable: Manufactured to withstand thermal cycling and high-current demands within closed drive cabinets.

Applications

Phase control and rectification in PowerFlex medium voltage drives.
Soft starters and high-capacity static transfer switches.
Heavy industrial motor control systems across mining, oil and gas, and power generation sectors.

Technical Specifications

Parameter	Value
Manufacturer	Allen-Bradley / Rockwell Automation
Model / Part Number	81001-355-71-R
Product Type	Silicon Controlled Rectifier (SCR) Thyristor
Current Rating	350A
Voltage Rating	6.5KV (6500V)
Inclusions	Connector Package (W/CONN-PKG)

Installation Guidelines

Electrostatic Discharge Precautions: Implement full ESD preventative measures, including grounded wrist straps and conductive mats, during handling and installation.
Thermal Management: Apply the specified thermal interface material (heatsink compound) uniformly before mounting to the cooling assembly to ensure proper heat dissipation.
Torque Specifications: Adhere strictly to the manufacturer's recommended mounting torque limits to prevent structural deformation of the SCR housing while ensuring adequate contact pressure.
Capacitor Discharge: Confirm that all DC bus and power storage capacitors are completely discharged and follow proper lockout/tagout (LOTO) protocols before servicing the hardware.

FAQ

What is the primary function of the device?

The device operates as a high-capacity Silicon Controlled Rectifier (SCR) thyristor, executing controlled power switching and rectification within medium voltage systems.

Does the component come with mounting accessories?

Yes, this specific part number is designated with W/CONN-PKG, meaning it includes the official connector package required for installation.

What are the core electrical ratings for this thyristor?

The module features a maximum current capacity of 350A and a high-voltage breakdown rating of 6.5KV.

Which applications utilize this type of thyristor?

It is typically utilized in high-power industrial applications, such as medium voltage variable frequency drives, soft starters, and phase control circuits.

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Shipping & Returns

Global Express Shipping

Standard Delivery: 4–6 business days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our technical warranty.

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Global Express Shipping

Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).

For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Color pattern	Red
Country of origin	United States