Watlow PPC-TB50 (30280-00) Precision Power Controller
Watlow PPC-TB50 (30280-00) | Precision Power Controller
The Watlow PPC-TB50 (30280-00) is a high-performance power control module designed for industrial thermal systems.
As part of the PPC (Power Plus Controller) family, this unit is engineered to manage electrical power with extreme precision
, ensuring that heating elements receive the exact voltage and current required to maintain stable temperatures in demanding environments.
Technical Parameter Table
| Feature | Specification |
| Model Number | PPC-TB50 (Part No: 30280-00) |
| Current Rating | 50 Amps |
| Voltage Range | 24V to 600V AC |
| Control Signal | 4-20mA, 0-10VDC, or Potentiometer |
| Firing Mode | Phase Angle or Zero Cross (Switchable) |
| Phase Support | Single Phase |
| Communication | Optional Modbus® RTU |
| Cooling | Forced air/Heatsink integrated |
| Mounting | DIN Rail or Panel Mount |
Unique Product Description
What sets the 30280-00 apart is its “Intelligence at the Edge” design. Unlike standard Solid State Relays (SSRs),
this controller features integrated diagnostic capabilities that monitor load health in real-time. It doesn’t just switch power;
it communicates system status, preventing catastrophic heater failure through early detection of partial load breaks or short circuits.
Product Advantages and Features
Ultra-Stable Control: Minimizes thermal shock to heating elements, significantly extending heater life.
Flexible Firing: Supports Phase Angle for rapid response (IR lamps) or Zero Cross for reduced EMI.
Compact Footprint: High power density allows for smaller control cabinets.
Diagnostic LEDs: Instant visual feedback for input signal, output status, and error codes.
Robust Protection: Built-in transient voltage protection and high-speed fusing compatibility.
Application Cases
Semiconductor Processing: Maintaining exact temperatures during wafer fabrication and chemical vapor deposition.
Plastic Extrusion: Managing barrel and die heat for consistent material flow and quality.
Glass & Ceramics: Controlling high-temperature kilns where precise cooling and heating ramps are critical.
Medical Equipment: Powering sterilization units and environmental chambers requiring medical-grade reliability.
Installation and Maintenance
PPC-TB50
Installation
Environment: Ensure the unit is mounted in a clean, dry area with adequate airflow.
Wiring: Use copper conductors rated for at least 75°C. Tighten terminals to the specified torque to prevent overheating.
Grounding: Ensure the heatsink is properly grounded to the sub-panel.
Maintenance
Visual Inspection: Periodically check for discoloration on terminals (signs of loose connections).
Dust Removal: Use compressed air to keep the heatsink fins clear of debris to maintain cooling efficiency.
Load Testing: Verify the output current annually to ensure the heating elements are still within their resistance tolerance.
Related & Other Models in the Series
The PPC series is scalable to fit various industrial power requirements:
| Model Series | Current Range | Primary Use Case |
| PPC-TB30 | 30 Amps | Small-scale lab ovens |
| PPC-TB50 | 50 Amps | Standard industrial heaters |
| PPC-TB100 | 100 Amps | Large furnaces and heat treating |
| PPC-TB200 | 200 Amps | Heavy industrial melting |
Note: Always consult the official Watlow wiring diagram specific to the 30280-00 before applying power to avoid damage to the controller or the load.
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