Danfoss Refrigeration RT5A Pressure Switch
Product Introduction
The Danfoss RT5A 017-504666 is a pressure switch designed
specifically for refrigeration applications, with a focus on
ammonia systems and heavy-duty industrial use. As part of Danfoss’
extensive range of refrigeration and air conditioning solutions, it
functions as a pressure control switch, featuring a single-pole
double-throw (SPDT) contact design to monitor and regulate pressure
in systems. With an IP65 enclosure rating and robust construction,
it is built to withstand harsh environments, making it suitable for
industrial and marine refrigeration setups. This switch supports
both low and high-pressure control, ensuring safe and efficient
operation of compressors, evaporators, and other refrigeration
components. Its compatibility with fluoride and ammonia
refrigerants further enhances its versatility in diverse cooling
systems.
Features
Ammonia System Compatibility: Specifically designed for ammonia
refrigeration systems, meeting the demands of industrial cooling
applications.
SPDT Contact Function: Equipped with a single-pole double-throw
switch, enabling flexible control logic (e.g., alarm, shutdown, or
activation of auxiliary devices) based on pressure thresholds.
Wide Ambient Temperature Range: Operates in environments from -40
°C to 85 °C (-40 °F to 180 °F), adapting to extreme temperature
conditions in refrigeration facilities.
Durable Enclosure: IP65-rated enclosure provides protection against
dust and water jets, ensuring reliability in wet or dusty
industrial settings.
Robust Sensing Element: Uses a bellows pressure sensing element,
known for accuracy and durability in pressure monitoring
applications.
Secure Connections: Features a 1/4-inch female pressure connection
and wire connections suitable for 6-14 mm diameter cables (Pg
13.5), facilitating secure integration into system piping and
electrical circuits.
Marine and Industrial Suitability: Part of the RT series, which is
designed for heavy-duty use, including marine refrigeration
applications, with resilience to vibration and harsh operating
conditions.
CE Certification: Complies with CE standards, ensuring adherence to
European safety and performance regulations.
Key Specifications
Max. Voltage: 250V
Max. Working Pressure: 15 bar / 220 psig
Contact Load: 0.5 A at 250 V
Pressure Sensing Element: Bellows
Net Weight: 0.25 kg
Origin: Poland
Brand: Danfoss
Application
Ideal for industrial and commercial refrigeration systems,
including ammonia-based setups, where precise pressure control is
critical. It is used to monitor suction pressure (to regulate
evaporation temperature), protect against pressure extremes, and
control the operation of compressors, fans, or valves. Integrates
seamlessly with Danfoss’ broader range of refrigeration components
(e.g., thermal expansion valves, solenoid valves, and filter
dryers) to form comprehensive cooling system solutions.
