Overview
The Lenze SSN31-1PVAR-045C21 is a compact permanent magnetic geared DC motor from Lenze’s SSN31 series of small geared motors. The PVAR designation identifies this unit as a permanent magnetic DC motor with integrated worm gearbox, part of Lenze’s trusted portfolio of industrial drive solutions. This model is engineered for applications requiring precise speed reduction, smooth torque delivery, and reliable operation in space-constrained installations.
Key Features
- Permanent magnetic DC motor design for reliable, cost-effective operation
- Integrated worm gearbox with sealed-for-life design
- Compact SSN31 frame size suitable for space-limited installations
- Multiple mounting options (foot or flange) available through configuration
- Low noise operation typical of worm gear design
- Suited for variable-speed and load applications when controlled with appropriate DC supply
Technical Specifications
- Motor Type: Permanent Magnetic DC Motor
- Gearbox Type: Worm Gearbox (Sealed)
- Frame Size: SSN31 (045C21 configuration)
- Output Shaft: Solid shaft (standard)
- Gearbox Efficiency: 96–97% (typical for worm drives)
- Mounting Positions: B3 (foot), B5 (flange), or B3/B14 (combined) as configured
- Operating Temperature: Verify per datasheet for ambient and motor winding limits
- Protection Class: IP54 (typical for industrial enclosed motors; verify per datasheet)
- Gearbox Fill: Sealed for life, suitable for all standard mounting positions
Typical Applications
The Lenze SSN31-1PVAR-045C21 is widely used in:
- Packaging machinery and conveyor systems requiring variable-speed control
- Material handling equipment where smooth, controlled motion is essential
- Automation systems with space constraints and DC voltage availability
- Industrial machinery requiring low-speed, high-torque output
- Applications demanding reliable, quiet geared drive operation
Compatibility & Replacements
Compatible With
- DC power supplies (24V, 48V, 180V, or as specified in datasheet)
- Standard industrial automation control systems with DC output
- Pulse-width modulation (PWM) speed controllers
- Industrial machinery with foot or flange-mount gearmotor requirements
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The SSN31-1PVAR-045C21 may directly replace other Lenze SSN31 permanent magnetic DC motors with equivalent voltage, shaft configuration, and mounting interface; however, confirm gearbox ratio (i-value) and output torque specifications match your application requirements.
Works With
- DC power supplies and variable-frequency drives (VFD) with DC output
- PWM motor speed controllers
- Standard industrial DC brake systems (if brake option fitted)
- Feedback devices: resolver, encoder, or DC tacho (if equipped)
- Mechanical couplings, pulleys, and sheaves compatible with solid shaft output









