HF033-403
May 27, 2026

HF033-403

HF033-403 is a 3‑phase sine‑wave output filter (HF series) designed for SEW‑EURODRIVE MOVITRAC inverters. It converts PWM voltage to a near‑sinusoidal waveform, reducing dv/dt, voltage spikes, bearing currents, and EMI, while enabling long motor cables and group drive operation.

Description

1. General Description

HF033-403 is a 3‑phase sine‑wave output filter (HF series) designed for SEW‑EURODRIVE MOVITRAC inverters. It converts PWM voltage to a near‑sinusoidal waveform, reducing dv/dt, voltage spikes, bearing currents, and EMI, while enabling long motor cables and group drive operation.

2. Model & Part Number

  • Model: HF033-403

  • SEW Part No.: 825 785 X

  • Type: Output sine filter

  • Approval: UL/cUL (except HF450-503/HF180-403)

3. Technical Specifications

  • Nominal Voltage: 3 × AC 230–500 V, 50/60 Hz

  • Rated Current:

    • 33 A @ 400 V

    • 26 A @ 500 V

    • 56.5 A @ 230 V

  • Power Loss: 120 W

  • Earth‑Leakage Current: 0 mA

  • Voltage Drop (at Iₙ):

    • <6.5% @ 400 V

    • <4% @ 500 V

  • Ambient Temperature: 0 … +45 °C (derate 3% Iₙ/°C above 45 °C, max. 60 °C)

  • Protection Class: IP10

  • Connections: M10 terminal studs, 70 mm² (AWG 3/0), 30 Nm torque

  • Weight: ≈16.5 kg (36.4 lb)

  • Motor Power Rating: 15 kW @ 400 V

4. Key Features

  1. Sine‑Wave Smoothing: Eliminates PWM spikes, protects motor insulation.

  2. Long Cable Support: Up to 100 m motor cables (vs. ~20 m without filter).

  3. EMI Compliance: Meets EN 61800‑3 Class C1/C2 with unshielded cables.

  4. Group Drive Ready: Suppresses discharge currents in parallel motor leads.

  5. Zero Leakage: No earth‑leakage current, safe for sensitive systems.

5. Compatibility

  • ✅ For MOVITRAC 31C/MC07B series.

  • ✅ Motor Power: 15 kW @ 400 V.

  • ❌ Not for MOVIDRIVE B or servo applications.

  • ❌ Do not use in hoist modes; only V/f or VFC control.

6. Operational Notes

  • Derate current 6% per 10 Hz above 60 Hz.

  • Account for voltage drop (reduces motor torque, critical for 230 V systems).

  • For 15 kW/30 kW drives, parallel two HF033-403 filters.

7. Status

  • Active (standard product), available new/used/refurbished.


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