Description
The Copeland 063644 (XB-1019RW351B) is a precision-engineered power assembly designed for low-temperature refrigeration applications using R502 refrigerant. Built to deliver reliable thermostatic expansion control, this assembly is a trusted replacement component for commercial and industrial refrigeration systems requiring consistent performance in demanding cold-temperature environments.
Key Features
- Designed for use with R502 refrigerant systems
- 1/4″ SAE (Flare) equalizer-type connection for secure, leak-free installation
- 5-foot capillary tube length for flexible positioning and routing
- Application temperature range: -50°F to +5°F — ideal for low-temperature and frozen food applications
- 35 PSI Maximum Operating Pressure (MOP) for reliable system protection
- Capscrews included for complete, ready-to-install assembly
Specifications
- SKU: 063644
- Model: XB-1019RW351B
- Brand: Copeland
- Refrigerant Type: R502
- Connection Type: 1/4″ SAE Flare (Equalizer)
- Capillary Tube Length: 5 FT
- Application Temperature Range: -50°F to +5°F
- MOP (Maximum Operating Pressure): 35 PSI
- Hardware: Capscrews included
Application
This power assembly is suited for low-temperature commercial refrigeration systems, including reach-in freezers, walk-in coolers, and display cases operating in the -50°F to +5°F range. The equalizer-type design ensures accurate superheat control, while the 5-foot capillary tube provides installation flexibility. The included capscrews make for a straightforward, complete installation.







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