• Part Number: 0-49005-5 (also written as 0490055)

• Manufacturer: Reliance Electric / Rockwell Automation

• Product Type: CardPak Linear Voltage Time Unit (Linear Voltage PC Board)

• Application: Reliance CardPak racks, engineered DC drives, FlexPak / MinPak series

• Status: Obsolete legacy; available as new surplus, rebuilt, or refurbished

Functional Description

• Closed‑loop voltage regulator / step‑down converter

• Fast response to load changes

• Provides precise, regulated DC voltage for control circuits

• Used for timing and voltage control in DC drive systems

Electrical Specifications (typical)

• Input Voltage: 115 / 230 VAC switchable, 50/60 Hz

• Output Voltage: Adjustable regulated DC (range varies by revision)

• Control Loop: Closed feedback for tight regulation

• Protection: Overvoltage, overcurrent, short‑circuit, thermal

• Isolation: Input‑to‑output isolated

Mechanical Specifications

• Form Factor: CardPak standard plug‑in module (slot‑mount)

• Dimensions (W×H×D): approx. 120 mm × 220 mm × 35 mm

• Weight: approx. 0.8–1.0 kg

• Construction: Black metal enclosure, edge connector, conformal coated PCB

• Mounting: CardPak rack slot, edge‑connector interface

  

  

Environmental Ratings

• Operating Temperature: 0 °C to +55 °C

• Storage Temperature: −40 °C to +70 °C

• Humidity: 5%–95% RH, non‑condensing

• Vibration: 1 g (10–100 Hz), industrial grade

Key Features

• CardPak Linear Voltage Unit: Dedicated for Reliance CardPak control systems

• Precision Regulation: Closed‑loop feedback for stable output

• Fast Load Response: Quickly corrects for load fluctuations

• Full Protection: OV/OC/SC/thermal fault safeguards

• Direct OEM Replacement: For legacy DC drives

• Repairable: Typically 1–2 year warranty

Compatibility

• Fits: Reliance CardPak racks, FlexPak DC drives, MinPak DC drives

• Series: 0-49005 (Linear Voltage Time Unit)

• Related: 0-49001 series (power supplies), 0-49005 series (control/voltage cards)