Description

1. Product Title

Reliance Electric 805401‑1S‑ AutoMax 4‑Slot PMI Power Interface Rack

2. Product Overview

805401‑1S is a 4‑slot distributed power module interface rack for Reliance Electric AutoMax control system. Equipped with built‑in cooling fan, it supplies conditioned DC power for inserted PMI I/O and regulator boards. It provides backplane bus connection, signal terminals for encoder, analog I/O and RS‑232 communication interface. It performs power filtering, short‑circuit protection and hardware status diagnostics. This is an obsolete legacy spare widely used in heavy‑industry drive control cabinets for steel mills, paper mills and process plants.

3. Technical Specifications

• Brand: Reliance Electric
• Model: 805401‑1S
• Warranty: One Year
• Condition: 100% New & Original
• Slots: 4‑slot PMI rack with cooling fan
• Input: 115 VAC, 1.25 A, 50/60 Hz
• Output: 115 VAC, 2 A max
• Interfaces: Encoder port, analog I/O terminals, RS‑232
• Operating Temp: 0°C ~ +55°C
• Mounting: Cabinet rack‑mount
• Protection Class: IP20
• 

4. Application Scenarios

• Steel‑mill Heavy‑duty Drive Cabinet: Power interface rack for AutoMax drive control hardware.
• Paper‑mill Production‑line Control System: Spare rack for legacy Reliance drive controller assemblies.
• Legacy Automation Plant Turnaround: Replacement PMI rack for aging AutoMax control installations.