DUNGS LGW3A4

DUNGS LGW 3 A4 Differential Pressure Switch

Description

The DUNGS LGW 3 A4 is an adjustable differential pressure switch designed for reliable monitoring in various industrial applications. It is suitable for switching a circuit on, off, or over on a change in the actual pressure value relative to the setpoint. This device is ideal for use with air, flue gas, and other non-aggressive gases.

Specifications

• Model: LGW 3 A4
• Part Number: 51100365
• Adjustment Range: 0.4 to 3 mbar
• Maximum Operating Pressure: 500 mbar
• Electrical Rating: 10 A, 250 V AC, 50-60 Hz
• Protection Class: IP54
• Operating Temperature: -15 deg C to +70 deg C

Label Info

• ID.No.: CE-0085AQ0673
• Media: Gas and Luft (Air)

Application

This pressure switch is commonly used in combustion plants, ventilation systems, and air-conditioning installations to monitor fan operation and filter conditions.

Country of Origin

Made in Germany.

CO2 Impact

Opting for this component helps avoid the production of a new one, saving an estimated 10 kg of CO2 emissions. This conservation is comparable to driving 50 km in a typical passenger car.

Availability

This item is in stock and ready for immediate dispatch. Order now from spareparts2day for expert support and fast delivery.

FAQ

What types of media is the LGW 3 A4 suitable for?

It is designed for air, flue gas, and other non-flammable and non-aggressive gases. It should not be used with fuel gases like natural gas or LPG.

How do I adjust the switching point on this pressure switch?

The switching point is set using the hand wheel under the transparent cover. The scale is marked in millibars (mbar) for easy and precise adjustment within the 0.4 to 3 mbar range.

What do the pressure connection ports P+ and P- signify?

The P+ port is for higher pressure (e.g., positive pressure), and the P- port is for lower pressure (e.g., negative pressure or vacuum). For differential pressure measurement, both are connected to their respective pressure sources.

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Last Update: Friday, March 13, 2026