Description
The Johnson Controls P145NCB-82 is a heavy-duty lube oil pressure cutout control engineered to protect compressors from damaging low oil pressure conditions. Featuring a built-in 45-second time delay, this control allows the system to build adequate oil pressure at startup before engaging the safety cutout circuit — preventing nuisance trips while still delivering reliable compressor protection.
Designed for commercial and industrial refrigeration and HVAC applications, the P145NCB-82 operates on 120/240 Vac power and incorporates a manual reset mechanism, ensuring that a technician must physically inspect and reset the control after a safety trip — a critical feature for protecting expensive compressor equipment.
Key Features
- 45-second time delay on startup to allow oil pressure to build before safety circuit activates
- Manual reset operation — requires technician intervention after a safety lockout
- Dual voltage compatibility: 120/240 Vac
- 425 PSIG maximum bellows pressure rating for high-pressure system compatibility
- 6.5 PSI fixed differential for consistent and repeatable cutout performance
- 1/4″ Male Flare pressure connection for easy field installation
Specifications
- Brand: Johnson Controls
- Model / SKU: P145NCB-82
- Control Type: Lube Oil Pressure Cutout
- Time Delay: 45 Seconds
- Voltage: 120/240 Vac
- Reset Type: Manual Reset
- Maximum Bellows Pressure: 425 PSIG
- Fixed Differential: 6.5 PSI
- Pressure Connection: 1/4″ Male Flare
Application
The P145NCB-82 is ideal for use in commercial refrigeration systems, chillers, and HVAC equipment where compressor lube oil pressure monitoring is required. The manual reset design ensures that any low oil pressure event is investigated before the system is returned to service, safeguarding compressor longevity and system reliability.
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