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DungsGas Regulation

Dungs Pressure switch LGW 3 A4 0.4-3 Mbar

DUNGS Pressure switch LGW 3 A4 0.4-3 Mbar

SKU 3G-CBM-04034

Also listed as: GAZ 15020 · GAZ-15020

Brand
Dungs
Item
Pressure switch LGW 3 A4 0.4-3 Mbar
Category
Gas Regulation
UNSPSC
40142201 — Gas regulators
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

Dungs
type
differential pressure switch
pressure range
0.4-3 mbar

Datasheet Content

F NL E P FIN d'emploiDK Notice et de S en montageaan- Gebruiks- N Instrucciones de servicio Instruções de operação e montage wijzing y de montaje de montagem Pressostat différentiel pour air, Drukverschilschakelaar voor Presostato diferencial para aire, humos y Pressostato diferencial para ar, fumée et gaz brûlés, Contrôleur lucht, rook- en uitlaatgassen, gases de escape, Interruptor automático gases de fumo e combustão, Con- de surpression pour gaz overdrukschakelaar voor gas por aumento de la sobrepresión de gas trolador de pressão para gás LGW…A4, LGW…A4/2 LGW…A4, LGW…A4/2 LGW…A4, LGW…A4/2 LGW…A4, LGW…A4/2 Pressostat double dubbele druksensor Presostato doble Pressostato duplo LGW … / … A4 LGW .... / .... A4 LGW ... / ... A4 LGW ... / ... A4 Pression de service maxi. Température ambiante Max. bedrijfsdruk °C Omgevingstemperatuur Presión máxima de servicio +70 Temperatura ambiente Pressão de serviço máx. Temperatura ambiente pmax. = 500 mbar (50 kPa) 0 -15 –15 °C … +70 °C [mbar] Pressostat/drukschakelaar /Pre- Température du fluide sostato/Pressostato °C Mediumtemperatuur Typ/type/Modelo/Tipo +70 Temperatura del medio LGW…A4, LGW…A4/2 Temperatura do fluido selon /volgens/según la norma / segundo a 0 norme EN 1854 -15 –15 °C … +70 °C EN 1854 Plages de réglage Température de stockage Instelbereiken °C Opslagtemperatuur +80 30 – 150 mbar Gamas de ajuste Temperatura de almacenamiento 2,5 – 50 mbar Gamas de ajuste Temperatura para a armazenagem 0 –30 °C … +80 °C 1 – 10 mbar -30 0,4 – 3 mbar Contact Ag/Ag contact Protection / Afdichtingsnorm /Tipo de Contacto Ag/Contacto Ag protección / Grau de protecção ~(AC) eff., min./mini 24 V, LGW…A4 ~(AC) max. /maxi. 250 V IP 54selon/volgens/según la norma/segundo =(DC) min./mini. 24 V, =(DC) max. /maxi. 48 V IEC 529 (EN 60529) [V] IEC 529 LGW…A4/2 Contact Au/Au contact Contacto Au/Contacto Au IP 65 selon/volgens/según la norma/segundo =(DC) min./mini. 5 V, IEC 529 (EN 60529) =(DC) max. /maxi. 24 V courant nominal/Nominale stroom/ courant nominal/Nominale stroom/ Ag Intensidad nominal/Corrente nominal Au Intensidad nominal/Corrente ~(AC) 10 A nominal courant de commutation/schakels- =(DC) 20 mA troom /Intensidad de conmutación / courant de commutation/ [A] Corrente de comutação [A] schakelstroom /Intensidad EN 1854 ~(AC) eff., min./mini 20 mA, EN 1854 de conmutación /Corrente de ~(AC) max./maxi. 6 A cos ϕ = 1 comutação ~(AC) max./maxi. 3 A cos ϕ = 0,6 =(DC) min./mini. 5 mA =(DC) min./mini. 20 mA =(DC) max./maxi. 20 A =(DC) max./maxi. 1 A Position de montage α / Inbouwpositie / Posición de montaje / Posição de montagem Position de montage standard Standaard inbouwpositie Posición de montaje standard. Posição de montagem padrão Monté horizontalement, le pressostat commute à une pression d´environ 0,5 mbar plus élevée. Bij horizontale inbouw schakelt de drukschakelaar bij een ca. 0,5 mbar hogere druk. α En el caso del montaje horizontal, el presostato actúa aprox. 0,5 mbar por encima del valor nominal ajustado. Na montagem horizontal, o pressostato comuta a uma pressão de 0,5 mbar mais alta. α M/CD • Edition 02.10 • Nr. 223 907 Monté horizontalement à l´envers, le pressostat commute à une pression d´environ 0,5 mbar moins élevée. Bij inbouw omgekeerd horizontaal schakelt de drukschakelaar bij een ca. 0,5 mbar lagere druk. En el caso del montaje horizontal, cabeza abajo, el presostato se activa aprox. 0,5 mbar por debajo del valor nominal ajustado. Na montagem horizontal, acima da cabeça, o pressostato comuta a uma pressão de 0,5 mbar mais baixa. Monté dans une position intermédiaire, le pressostat commute à une pression d'un maximum de ± 0,5…
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Dungs Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

DUNGS Pressure switch LGW 3 A4 0.4-3 Mbar

Frequently Asked Questions

What is the Dungs LGW 3 A4 pressure switch used for?

The Dungs LGW 3 A4 is a differential pressure switch designed for air, flue gas, and combustion gas monitoring in industrial burners and gas regulation systems. It ensures safe pressure control by switching electrical contacts when the differential pressure exceeds or falls below the set point.

What are the specifications of the Dungs LGW 3 A4 0.4-3 mbar pressure switch?

The Dungs LGW 3 A4 has a pressure range of 0.4-3 mbar, maximum service pressure of 500 mbar (50 kPa), ambient and fluid temperature range of -15 °C to +70 °C, and storage temperature of -30 °C to +80 °C. It features silver contacts rated for 250 V AC max and IP54 protection per EN 1854.

Where to buy the Dungs LGW 3 A4 pressure switch in Singapore?

3G Electric supplies the Dungs LGW 3 A4 pressure switch to Singapore. We source and deliver this gas regulation component, handling logistics and customs clearance for your order. Contact us for availability and lead time.

How to install the Dungs LGW 3 A4 pressure switch?

Install the Dungs LGW 3 A4 in a clean, dry location within the specified ambient temperature range. Connect the pressure lines to the appropriate ports, ensuring no leaks. Wire the silver contacts according to the electrical ratings (max 250 V AC) and verify the set point adjustment before commissioning.

Used in

Common applications for Dungs
Industrial steam boilers — MB-ZRDLE MultiBloc on modulating gas-fired plant
Hospital and hotel plant rooms — MB-D series for two-stage commercial burners
Food-industry ovens and dryers — DMV butterfly valves on high-turndown modulating lines
Petrochemical gas-train skid assemblies — FRS / FRSBV regulators with GW pressure switches
Retrofit drop-in replacements for older Dungs MB assemblies on existing Weishaupt / Riello burners

Dungs Products

3G Electric supplies Dungs gas regulation. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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