Danfoss 117U4060 Starting Device

The Danfoss 117U4060 Starting Device is a critical component designed for 120V hermetic compressors, specifically engineered to provide reliable RSIR (Resistive Start-Inductive Run) and RSCR (Resistive Start-Capacitive Run) configuration performance. This OEM PTC starter functions by utilizing a positive temperature coefficient thermistor to manage the starting torque and initial current flow to the motor windings, ensuring a smooth startup cycle even in demanding refrigeration environments. As a technician, you know that precise compressor relay timing is vital for motor longevity. The 117U4060 is often found in Danfoss TL, FR, and NL series compressors, providing a direct-fit solution for refrigeration repair and maintenance. This 103N0011 equivalent ensures electrical compatibility with specific micro-farad ratings required for optimal hermetic motor starting. Replacing a fouled or high-resistance starting device with this genuine part prevents overheating and potential winding failure during high-cycle operations.

• Direct OEM Replacement: Ensures precise mechanical fit and electrical alignment with Danfoss compressor terminals.
• High Thermal Stability: Engineered to handle consistent cycling without premature resistance drift.
• Easy Installation: Features standard spade terminal electrical connectivity for rapid field replacement.
• Motor Protection: Optimizes current delivery to reduce excessive heat buildup during the startup phase.

Common Technical Questions

What are the symptoms of a failing PTC starting device?
Technicians typically observe a clicking sound as the overload protector trips, or the compressor fails to oscillate and draws Locked Rotor Amps (LRA). Measuring the resistance across the device when cool will reveal if the internal thermistor has cracked or failed open.

Is this device compatible with run capacitors?
Yes, the 117U4060 can be utilized in RSCR circuits. Ensure your wiring harness and run capacitor specifications align with the compressor manufacturer's technical data sheet to maintain the correct phase shift.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.