Schneider LF505-S/sp26 Current Transformer Board – ATV610/630/930 220-315KW – Tested

Product Overview

Original LEM LF505-S/SP26 closed-loop Hall effect current transducer for Schneider Altivar ATV610, ATV630, and ATV930 series drives. This board provides precise galvanically isolated current measurement for motor phase current feedback, enabling accurate torque control, overload protection, and fault detection. The LF505-S/SP26 is a compensated closed-loop transducer using the Hall effect principle.

Key Features

• Genuine LEM original – LF505-S/SP26 current transducer
• Compatible with ATV610, ATV630, and ATV930 series drives
• Power ratings: 220KW – 250KW – 315KW
• Closed-loop (compensated) Hall effect technology
• Nominal primary current: 500A RMS
• Measuring range: ±800A (DC, AC, pulsed)
• Accuracy: ±0.6% at I_PN, T_A = 25°C
• Linearity error: <0.1%
• Frequency bandwidth: DC ~ 100kHz
• Response time: 1µs
• Galvanic isolation between primary (high power) and secondary (electronic) circuits
• Isolated plastic case recognized according to UL94V-0
• High immunity to external interference
• Original pulled – no repair history

Specifications

Compatibility Note

• Compatible with Schneider Altivar ATV610, ATV630, and ATV930 series drives
• Specifically for 220KW, 250KW, and 315KW power ratings
• This board uses a LEM LF505-S/SP26 closed-loop Hall effect current transducer for motor phase current measurement
• CRITICAL: Nameplate photo required – different power ratings may use different current sensor variants. Verify original board marking before ordering
• If mismatched: Incorrect sensor variant may result in drive reporting “InF9” (Internal – I measure) fault, “Current Feedback Fault,” or inaccurate current readings
• Also referenced with part number P/N:3375677 in Schneider Electric’s import documentation
• Used in conjunction with the main control board for complete drive operation
• Verify drive model and power rating before ordering
• Send drive nameplate photo for accurate matching

Quality Assurance

• Original pulled from working drive; tested functional with no repair history
• Actual photos sent before shipping
• Test video available upon request
• ESD anti-static packaging