DUNGS UB 150 A4 Adjustable Gas Pressure Switch

Description

The DUNGS UB 150 A4 is a high-quality, adjustable pressure switch designed for monitoring gas pressure in a wide range of industrial applications. It provides a reliable safety function for combustion systems, ensuring equipment operates within specified pressure limits. With its clear setpoint dial and robust construction, it is a preferred choice for technicians and engineers.

Specifications

• Manufacturer: DUNGS
• Model: UB 150 A4
• Pressure Range: 30 to 150 mbar
• Maximum Operating Pressure: 500 mbar
• Switching Capacity: 10 A / 250 VAC
• Enclosure: IP54 with appropriate gland
• Media: For dry, non-aggressive gases

Label Info

• Type: UB 150 A4
• Pmax: 500 mbar
• ID-No: CE-0085 A00026

Application

This pressure switch is ideal for use in industrial burners, gas boilers, heating systems, and other gas-fired appliances to monitor gas supply pressure and ensure safe ignition and operation.

Country of Origin

Made in Germany.

CO2 Impact

By purchasing this pre-owned DUNGS pressure switch, you are contributing to a circular economy and preventing approximately 8.0 kg of CO2 emissions, which is equivalent to the emissions from driving a car for 40 kilometers.

Availability

This item is in stock and ready for immediate dispatch. Order now from PLC2Day for expert support and fast delivery.

FAQ

Is the Dungs UB 150 A4 suitable for use with liquids?

No, this pressure switch is specifically designed for use with dry, non-aggressive gases, such as natural gas, propane, and air. Using it with liquids will damage the diaphragm and lead to device failure.

The terminals are for a single pole, single throw (SPST) switch. The 'COM' is the common terminal where the input power is connected. The 'NO' (Normally Open) terminal is the output. The electrical circuit between COM and NO is completed (closed) when the monitored pressure rises above the setpoint.

The 'A4' designation in the Dungs nomenclature typically refers to the specific housing version, which in this case includes the transparent cover, external adjustment dial, and a specific internal switch configuration.

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Last Update: Friday, March 13, 2026