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TL6115
Ritscher
Overview
The 61 Series Low-Speed Shaded Pole Motor is a specialized, high-torque induction motor engineered for direct integration into small hermetic or semi-hermetic compressors and other applications requiring continuous, reliable, and slow-speed rotary power. Utilizing the inherent simplicity and durability of the shaded pole design, this motor is optimized to deliver consistent starting and running torque at low rotational speeds, making it an ideal driver for compact, low-capacity compression systems.
Key Features & Advantages
Optimized for Low-Speed, High-Torque Operation: Specifically wound and designed to operate efficiently at low synchronous speeds (e.g., 750 RPM at 50Hz, 900 RPM at 60Hz), providing the necessary torque to directly drive compressor pistons or scroll mechanisms without the need for a bulky external gear reducer.
Robust & Hermetic-Ready Construction: Built with materials and seals compatible with refrigerant environments. The stator assembly is designed for direct press-fitting or welding into a compressor shell, featuring moisture-resistant, Class F or higher insulation systems to withstand challenging internal conditions.
High Reliability & Long Service Life: The shaded pole design has no brushes, capacitors, or centrifugal switches—common points of failure. This simplicity ensures exceptional reliability and a long operational lifespan under continuous duty cycles in sealed systems.
Smooth, Low-Vibration Start & Run: Provides gentle, inherent starting torque without sudden jolts, reducing mechanical stress on compressor components. The shaded pole principle ensures smooth rotation with minimal cogging, contributing to quiet and stable compressor operation.
Thermal Endurance: Engineered to operate reliably within the elevated temperatures and oil-rich atmosphere inside a compressor housing. High-temperature magnet wire and varnish are standard.
Cost-Effective Drive Solution: Offers one of the most economical and reliable motor technologies for fixed-speed, low-power compressor applications, keeping system costs low without sacrificing performance.
Continuous Duty Capable: Rated for 100% duty cycle (S1), designed for the long, uninterrupted run times typical of refrigeration and air conditioning compressors.
Typical Specifications
Motor Type: Single-Phase AC Shaded Pole Induction Motor.
Frame Series: 61 (Indicative of a compact, low-speed stator package).
Input Power: 115V/230V AC, 50/60Hz (configurable).
Synchronous Speed: 750 RPM (50Hz) or 900 RPM (60Hz) for 8-pole design; other low-speed configurations available.
Output Power: Typically ranges from 1/20 HP (≈40W) to 1/8 HP (≈90W), suited for small compressors.
Torque Characteristics: High locked-rotor torque and stable pull-up torque for reliable compressor start-up against back pressure.
Mounting Integration: Designed for direct internal mounting within a compressor shell; external flange or foot-mount versions may be available for semi-hermetic units.
Thermal Protection: Can be customized with internal thermal protectors (e.g., Klixon disc) or external PTC sensors for overload protection.
Primary Applications
This motor is the power core for small, efficient compression systems:
Mini Refrigeration Compressors: For compact refrigerators, wine coolers, dehumidifiers, and small display cases.
Low-Capacity Air Conditioning Compressors: In window units, portable ACs, or small split systems.
Medical & Laboratory Equipment: Cooling compressors for specialized chillers and analyzers.
Beverage Dispensers & Ice Makers.
Small Air Compressors for specific pneumatic applications.
Why Choose the 61 Series Low-Speed Shaded Pole Motor for Compressors?
For compressor manufacturers focused on simplicity, reliability, and cost-effectiveness for low-capacity applications, the 61 Series Shaded Pole Motor is an outstanding choice. Its ability to deliver direct, low-speed drive eliminates the need for speed-reducing mechanisms, simplifying compressor design. Its legendary ruggedness and maintenance-free operation ensure the compressor unit provides years of trouble-free service, making it the trusted electromechanical heart for dependable cooling systems worldwide.
Note: This motor is specifically designed for compressor OEM integration. Performance is highly dependent on precise matching with the compressor's mechanical load and thermodynamic system. Consulting with application engineers for stator stack, winding, and protection customization is essential.
Customization Options Available:
Special winding configurations
Lead wire types and lengths
Shaft modifications (D-cut, flattened, or extended)
EMI suppression features
Overview
The 61 Series Low-Speed Shaded Pole Motor is a specialized, high-torque induction motor engineered for direct integration into small hermetic or semi-hermetic compressors and other applications requiring continuous, reliable, and slow-speed rotary power. Utilizing the inherent simplicity and durability of the shaded pole design, this motor is optimized to deliver consistent starting and running torque at low rotational speeds, making it an ideal driver for compact, low-capacity compression systems.
Key Features & Advantages
Optimized for Low-Speed, High-Torque Operation: Specifically wound and designed to operate efficiently at low synchronous speeds (e.g., 750 RPM at 50Hz, 900 RPM at 60Hz), providing the necessary torque to directly drive compressor pistons or scroll mechanisms without the need for a bulky external gear reducer.
Robust & Hermetic-Ready Construction: Built with materials and seals compatible with refrigerant environments. The stator assembly is designed for direct press-fitting or welding into a compressor shell, featuring moisture-resistant, Class F or higher insulation systems to withstand challenging internal conditions.
High Reliability & Long Service Life: The shaded pole design has no brushes, capacitors, or centrifugal switches—common points of failure. This simplicity ensures exceptional reliability and a long operational lifespan under continuous duty cycles in sealed systems.
Smooth, Low-Vibration Start & Run: Provides gentle, inherent starting torque without sudden jolts, reducing mechanical stress on compressor components. The shaded pole principle ensures smooth rotation with minimal cogging, contributing to quiet and stable compressor operation.
Thermal Endurance: Engineered to operate reliably within the elevated temperatures and oil-rich atmosphere inside a compressor housing. High-temperature magnet wire and varnish are standard.
Cost-Effective Drive Solution: Offers one of the most economical and reliable motor technologies for fixed-speed, low-power compressor applications, keeping system costs low without sacrificing performance.
Continuous Duty Capable: Rated for 100% duty cycle (S1), designed for the long, uninterrupted run times typical of refrigeration and air conditioning compressors.
Typical Specifications
Motor Type: Single-Phase AC Shaded Pole Induction Motor.
Frame Series: 61 (Indicative of a compact, low-speed stator package).
Input Power: 115V/230V AC, 50/60Hz (configurable).
Synchronous Speed: 750 RPM (50Hz) or 900 RPM (60Hz) for 8-pole design; other low-speed configurations available.
Output Power: Typically ranges from 1/20 HP (≈40W) to 1/8 HP (≈90W), suited for small compressors.
Torque Characteristics: High locked-rotor torque and stable pull-up torque for reliable compressor start-up against back pressure.
Mounting Integration: Designed for direct internal mounting within a compressor shell; external flange or foot-mount versions may be available for semi-hermetic units.
Thermal Protection: Can be customized with internal thermal protectors (e.g., Klixon disc) or external PTC sensors for overload protection.
Primary Applications
This motor is the power core for small, efficient compression systems:
Mini Refrigeration Compressors: For compact refrigerators, wine coolers, dehumidifiers, and small display cases.
Low-Capacity Air Conditioning Compressors: In window units, portable ACs, or small split systems.
Medical & Laboratory Equipment: Cooling compressors for specialized chillers and analyzers.
Beverage Dispensers & Ice Makers.
Small Air Compressors for specific pneumatic applications.
Why Choose the 61 Series Low-Speed Shaded Pole Motor for Compressors?
For compressor manufacturers focused on simplicity, reliability, and cost-effectiveness for low-capacity applications, the 61 Series Shaded Pole Motor is an outstanding choice. Its ability to deliver direct, low-speed drive eliminates the need for speed-reducing mechanisms, simplifying compressor design. Its legendary ruggedness and maintenance-free operation ensure the compressor unit provides years of trouble-free service, making it the trusted electromechanical heart for dependable cooling systems worldwide.
Note: This motor is specifically designed for compressor OEM integration. Performance is highly dependent on precise matching with the compressor's mechanical load and thermodynamic system. Consulting with application engineers for stator stack, winding, and protection customization is essential.
Customization Options Available:
Special winding configurations
Lead wire types and lengths
Shaft modifications (D-cut, flattened, or extended)
EMI suppression features
