HS Code for Pressure switch

Pressure switches are classified under HS code 903220 when they function as automatic regulators, also known as manostats. While many electrical switches are found in Chapter 85, a pressure switch that is designed to automatically control a pressure level by opening or closing an electrical circuit at a specific set point is classified in Chapter 90. Heading 9032 covers automatic regulating or controlling instruments. Subheading 903220 specifically covers manostats. These devices are used in various applications, such as air compressors, water pumps, and HVAC systems, to ensure that the system pressure remains within safe or operational limits. The distinction between a simple switch and a manostat depends on whether the device is intended to regulate a variable (pressure) as part of an automated system. According to the HS Explanatory Notes, manostats consist of a pressure-sensitive element and a device which acts on an electrical circuit or a valve to maintain the pressure. Because they perform a control function based on a measured variable, they are treated as precision instruments.

Products Included

• HVAC pressure switches
• Water pump control switches
• Industrial manostats
• Vacuum switches for control systems
• Boiler pressure cut-off switches
• Pneumatic limit switches

Common Misclassification

Pressure switches are often misclassified under 853650, which covers other electrical switches for a voltage not exceeding 1,000 V. However, if the switch is designed to maintain a pressure at a set point (acting as a manostat), Note 7 to Chapter 90 directs the classification to 903220. Another common error is 902620, which is for measuring instruments; a switch does more than measure—it triggers an action to regulate the system, which is the defining characteristic of heading 9032.

FAQ

What is the HS code for pressure switch?

The HS code for a pressure switch functioning as an automatic regulator (manostat) is 903220.

Why is a pressure switch not in Chapter 85?

If the switch is an automatic regulator (manostat) that maintains a pressure level, it is specifically included in Chapter 90 under heading 9032, which takes precedence over general electrical switches.