• Soft start compressor device reduces inrush current up to ~60-70 % for smoother motor starts
• Lowers start-up torque by ~30-40 %, reducing mechanical stress on system components
• Built-in reverse scroll motor protection and under-voltage detection safeguards compressor
• Compact single phase solution for 208-230 VAC HVAC/R scroll compressor systems
• Helps reduce start-up noise, breaker nuisance trips, and contactor arcing for more reliable operation

The Nu-Calgon NuStart Soft Starter (Model 5010-20) is a compressor start-assist and protection device engineered for HVAC/R scroll compressors. NuStart uses advanced current-based motor control to optimize compressor start-up, significantly reducing inrush current and torque during start, which lowers stress on the motor and electrical components. This leads to reduced start-up noise, fewer nuisance breaker trips, minimized contactor arcing, and improved long-term compressor reliability. NuStart also offers built-in protections including reverse scroll motor protection, under-voltage shutdown, and overcurrent limit features. Designed for single phase residential and light commercial A/C and heat pump systems operating on 208-230 VAC, Model 5010-20 helps extend compressor life and supports efficient, reliable system operation.

Specifications:

Brand: Nu-Calgon
Product Name: NuStart Soft Starter 5010-20
Model Number: 5010-20
Voltage: 208-230 VAC, 50/60 Hz
Phase: Single Phase
Rated Load Amperage (RLA): 8-16 A RLA
Compressor Compatibility: Scroll compressors (non-inverter)
Start Current Reduction: ~60-70 % of LRA
Startup Torque Reduction: ~30-40 %
Protection Features: Reverse scroll protection, under-voltage protection, overcurrent limit shutdown
Operating Temp Range: -4 °F to 140 °F
Housing Protection: IP20
Dimensions: ~5.3″ x 1.96″ x 2.94″
Weight: ~1.1 lb