SanRex PWB80A30 and PWB130AA40

The SanRex PWB80A30 and PWB130AA40 thyristor modules are both designed for applications requiring efficient control and rectification of power. However, they differ significantly in their specifications and intended use. Here’s a detailed comparison:

Comparison Table

Similarities

1. Manufacturer: Both modules are produced by SanRex Corporation, indicating a level of quality and design consistency.
2. Type: Both are thyristor modules, designed to manage high power loads.
3. Mounting Type: Both modules are chassis mountable, making them suitable for industrial applications where secure and stable installation is required.
4. Number of SCRs: Each module contains three SCRs, indicating they are designed for three-phase applications.

Differences

1. Continuous Current: The PWB80A30 supports up to 80A, whereas the PWB130AA40 can handle up to 130A. This makes the PWB130AA40 more suitable for higher current applications.
2. Repetitive Peak Reverse Voltage: The PWB130AA40 has a higher voltage rating (400V) compared to the PWB80A30 (300V), allowing it to be used in higher voltage environments.
3. Surge On-State Current: The PWB130AA40 can handle higher surge currents (3500A) compared to the PWB80A30 (2500A), making it better suited for applications with potential high current spikes.
4. Gate Power Dissipation: The PWB130AA40 has a higher gate power dissipation capacity (20W) compared to the PWB80A30 (10W), indicating its suitability for more demanding gate control requirements.
5. Operating Temperature Range: The PWB130AA40 has a broader operating temperature range, making it more versatile in extreme environments.
6. Weight: The PWB130AA40 is heavier (250g) compared to the PWB80A30 (170g), likely due to its higher capacity components.

Applications

• PWB80A30: Ideal for low-voltage, three-phase rectifier applications, such as welding power supplies and various DC power supplies.
• PWB130AA40: Suitable for high-voltage industrial applications, including motor control and other high-power machinery.

Conclusion

While both the PWB80A30 and PWB130AA40 serve similar functions in controlling and rectifying power in industrial applications, the PWB130AA40 is built to handle higher currents and voltages, making it more suitable for more demanding applications. The PWB80A30, on the other hand, is well-suited for applications requiring lower current and voltage handling capabilities.