OVERVIEW

Official designation: HITACHI L300P-370HFU2 (L300P, AC Variable Frequency Drive)

The L300P-370HFU2 is a high-power VFD rated for 37.0 kW (50 HP) motor control in high-demand applications like pumps and fans. It operates using 480V AC three-phase input and features precise speed regulation capabilities.

KEY SPECS SUMMARY

Power: Input 380-480V AC 3-phase; Output 37.0 kW

Interfaces / Ports: Multiple control terminal blocks

Indicators: Digital display (frequency, current, status)

Operating Temp: -10 to 50 degrees C

Platform / Compatibility: Centrifugal loads (P-type rating)

Limit: Rated output current 73 A

Lifecycle: Discontinued

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What is the rated three-phase input voltage range for the L300P-370HFU2 drive?

A: The drive operates on a three-phase input voltage range from 380V AC up to 480V AC.

Wiring & Installation:

Q: What type of load applications is the L300P series specifically optimized for?

A: The L300P series is optimized for variable torque applications like pumps and cooling tower fans.

Troubleshooting & Compatibility:

Q: How does the output current rating differ between constant torque and variable torque operation?

A: The L300P models utilize a light-duty or P-type rating, typically higher than constant torque ratings.

Replacement & Upgrades:

Q: Which modern Hitachi VFD series is the intended successor and replacement for the L300P drive?

A: The Hitachi Industrial SJ series or the high-performance WJ200 series are often used as replacements.