CPS 5-2-1 Compressor Saver Hard Start Kit CSR-U3 208/240V 4-5HP A/C Boost Relay

Overview

CPS 5-2-1 Compressor Saver CSR-U3 – Hard Start Kit for 4-5HP 208/240V UnitsBoost your A/C system’s performance and longevity with the CPS 5-2-1 Compressor Saver CSR-U3 hard start kit. This easy-to-install 3-wire start assist kit includes a potential relay and start capacitor and is designed specifically for 208/240V air conditioner compressors rated between 4 and 5 horsepower.

Key Benefits:Reduces compressor start time by up to 50%Helps extend compressor life and prevent lockoutsEspecially useful for LP or natural gas backup HVAC systems

Compatible with central air conditioners and heat pumps

Reliable operation using potential relay and start capacitorConnects with three-wire method for secure operation

Technical Specifications

• Voltage: 208–240VHorsepower Range: 4–5 HP
• Manufacturer: CPS
• Model: CSR-U3REM#: R184This product is ideal for technicians and HVAC professionals upgrading systems that rely on high-efficiency starting mechanisms — perfect for environments where low-voltage starts are common, such as propane or generator-assisted systems.
• Brand new in original packaging. CPS is a trusted name in HVAC diagnostics and solutions.

Product details

Part / SKU	CSR-U3

Package includes

• CPS 5-2-1 Compressor Saver Hard Start Kit CSR-U3 208/240V 4-5HP A/C Boost Relay

Included components and any stated pack quantity are as described in this listing. Optional accessories shown separately are sold separately unless expressly included above.