CNT3520 Trane Pressure Switch

Overview

The Trane CNT3520 (also known as CNT03520) is an Original Equipment Manufacturer (OEM) differential pressure switch designed for use in Trane Heating, Ventilation, and Air Conditioning (HVAC) systems. This device is crucial for maintaining system efficiency and ensuring safety controls by monitoring precise pressure levels, particularly differential pressure, and is often used in applications like monitoring air filters or fan operation. It is considered a high-quality component that enhances system reliability.

Features

The CNT3520 pressure switch includes the following features:

• OEM Component: Genuine Trane part, ensuring proper fit and reliable performance within compatible Trane systems.
• Contact Type: Single-Pole, Double-Throw (SPDT) snap-acting contacts.
• Safety Control: Essential for safety control systems and maintaining system efficiency.
• Application: Commonly used in HVAC systems and industrial machinery where precise pressure control is vital.

Specifications

• Product Number: CNT3520 (or CNT03520)
• Type: Differential Pressure Switch
• Pressure Rating/Setting: -0.15 inches Water Column (-0.15″ W.C. or IN WC) Open
• Contacts: SPDT (Single-Pole, Double-Throw), Snap-Action
• Electrical Rating: 3 FLA, 18 LRA at 24 VAC (Amperage ratings based on sample data for CNT03520)
• Weight: Approximately 0.25 lbs / 113.4g (other sources state 0.56 lb)

Applications

The Trane CNT3520 pressure switch is used across various commercial and industrial settings, primarily within:

• Trane HVAC Systems: Functions as a replacement part in Trane units for system maintenance and reliability.
• Airflow Monitoring: Used for sensing differential pressure, often to confirm fan operation or monitor air filter status.
• Industrial Machinery: Applicable in other industrial settings where precise, low-pressure control and sensing are required.