Model: 0-58719-32
Brand: Reliance Electric (Rockwell Automation / Baldor Reliance lineage)
Series: FlexPak 3000 / WebPak 3000 Drive Components
Core Function: 15 Amp field supply board (field current regulator) used in Reliance Electric DC drives. Regulates the field current of DC motors to control speed, provide field economy, and support protective functions such as field loss detection.
HS Code: 8504.40 / 8537.10 (Static converters / Boards and panels for electric control)
Product Parameters
| Parameter | Specification |
|---|---|
| Product Type | Field Supply Board / Field Current Regulator |
| Current Rating | 15 A maximum |
| Primary Function | Field current regulation for DC motors |
| Compatible Systems | FlexPak 3000, WebPak 3000 and related Reliance DC drives |
| Alternative / Related Numbers | 911FK0151, 707973-10T (associated assemblies) |
| Key Features Supported | Field Loss Detection, Field Economy, Overspeed Protection, Overvoltage Protection |
| Form Factor | Printed Circuit Board (mezzanine-style assembly in some configurations) |
| Typical Weight | Approx. 0.5 lb (0.23 kg) |
| Status | Legacy / Obsolete (still available as surplus or repaired) |
Advantages and Features
- Dedicated 15 A field current regulation for medium-power DC drives
- Supports essential protective functions (field loss, field economy, overspeed, overvoltage)
- Designed specifically for Reliance FlexPak / WebPak 3000 series
- Robust construction suitable for industrial drive environments
- Enables precise control of motor field strength for speed regulation
- Compatible with higher-powered drive configurations within the family
- Proven reliability in legacy DC drive systems
Application Cases in Application Fields
- Field current regulation in Reliance Electric FlexPak 3000 DC drives
- WebPak 3000 drive systems
- DC motor speed control via field weakening
- Industrial applications requiring adjustable field strength (paper, metals, material handling, etc.)
- Retrofit and maintenance of existing Reliance DC drive installations
- Hydraulic pump test rigs and other specialized equipment using this regulator
- Legacy system support where original field supply boards need replacement
Comparisons with Competing Products
| Aspect | Reliance 0-58719-32 (15A) | Lower-Rated Field Boards | Modern Digital Field Controllers |
|---|---|---|---|
| Current Rating | 15 A | Lower (e.g. 5–10 A) | Varies / programmable |
| System Compatibility | FlexPak / WebPak 3000 | Specific to drive model | Broad / new platforms |
| Protection Features | Field loss, economy, overspeed | Basic | Advanced digital |
| Technology | Analog / discrete | Analog | Microprocessor-based |
| Best For | Medium-power DC drives | Smaller motors | New installations / upgrades |
Selection Suggestions and Precautions
Selection Suggestions:
- Confirm the drive model (FlexPak 3000 / WebPak 3000 or equivalent) and required field current rating.
- Verify whether the “less power cube” version matches the existing installation.
- Cross-reference alternative numbers (911FK0151, 707973-10T) when sourcing.
- Consider repaired or surplus units for legacy systems, as the part is obsolete.
Precautions:
- This is a high-power board — proper installation, cooling, and electrical isolation are critical.
- Incorrect field current settings can cause motor overheating or loss of control.
- Always follow the original drive manual (e.g., related to D2-3336) for wiring and setup.
- Ensure the power cube / SCR assembly (if separate) is compatible and in good condition.
- Use qualified personnel familiar with DC drive field circuits for installation and testing.
- Static-sensitive — handle with appropriate ESD precautions.
Recent Popular Same-Brand / Related Models
- Other Reliance field supply / field current regulator boards (different amp ratings)
- FlexPak 3000 and WebPak 3000 complete drive units and subassemblies
- Related regulator boards (e.g., 0-58718 series)
- Power cubes and SCR assemblies for the same drive family
- Modern Rockwell Automation / Allen-Bradley DC drive alternatives for upgrades
- Baldor Reliance legacy DC drive components
