Ranco O16-527 Pressure Control

The Ranco O16-527 is a heavy-duty single function low pressure control engineered for high-stakes commercial refrigeration and air conditioning applications. Designed for field technicians who demand reliability, this SPDT pressure switch features a versatile pressure range of 10" Hg to 100 PSI with an adjustable differential of 10 to 40 PSI. Built on a heavy-duty plated steel frame with laser-welded bellows, it ensures an extended service life even in high-vibration environments. The 36-inch capillary is protected by the Super CAP capillary protection system, significantly reducing the risk of fatigue failure. With automatic reset functionality and a NEMA 1 non-conductive enclosure, the O16-527 provides robust protection for compressors against excessively low suction pressure. Universal mounting capabilities and raised, accessible screw terminals streamline the installation process on various equipment types, including walk-in coolers and self-contained units.

• Universal Compatibility: Works with R-22, R-134A, R-404A, and most other standard refrigerants for maximum field flexibility.
• Enhanced Durability: Laser-welded bellows and a rugged plated steel frame stand up to the rigors of commercial mechanical rooms.
• Vibration Protection: The Super CAP system and low-mass copper alloy capillary minimize stress caused by equipment harmonics.
• Easy Calibration: Features a large, high-visibility scale plate for precise setpoint and differential adjustments.
• Flexible Wiring: SPDT switch action allows for direct motor control or pilot duty applications with contactors.

• What is the reset type for this model? The Ranco O16-527 is an automatic reset control, meaning it will automatically re-engage once the pressure returns to the cut-in setpoint.
• Can this be used for high-pressure cut-out? This specific model is designed as a low-pressure control. While it is SPDT, its primary range is optimized for suction-side monitoring.
• What connection type does it use? It comes equipped with a 36-inch capillary and a 1/4 inch SAE flare nut for standard access port connections.

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.