Digital guide
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Kollmorgen DBL3H00250QR20
Product Name: DBL3 Series Synchronous Brushless Servo Motor
Product Introduction: A robust 6-pole sinusoidally wound servo motor from the DBL3 family, optimized for high dynamic response and continuous duty in industrial automation. The “00250” denotes a 2.5 Nm stall torque rating, “H” indicates a 230/400 V AC winding, and “QR20” specifies feedback and connector configuration.
Detailed content
Technical Specifications:
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Continuous Stall Torque: 2.5 Nm
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Stall Current: 3.0 A
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Rated Voltage: 230/400 V AC
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Maximum Speed: 3000–6000 RPM (depending on winding)
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Poles: 6
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Feedback: Resolver (standard QR variant)
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Brake Option: Available (hold torque ~2.5 Nm, 24 V DC)
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Inertia: Approx. 1.4 kg·cm²
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Protection: IP65 (with shaft seal)
Structure & Material:
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Stator: Class F insulated copper windings
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Rotor: Rare-earth permanent magnets
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Flange: IEC standard with keyed or smooth shaft
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Connectors: Angled multi-pin resolver and power connectors
Function Features:
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Low vibration sinusoidal commutation
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Optional holding brake with <15 ms engagement delay
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High overload capability for acceleration phases
Application Scenarios:
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Material forming presses
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Converting and textile machinery
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Elevation/rotation stages in medical imaging
Installation & Notes:
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Brake must be released only after drive enable
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Resolver alignment critical during initial commissioning
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Do not operate above 6000 RPM without verifying bearing limits
