150.00 EURexcl. VAT · import VAT and duties on delivery
Kromschroder Air pressure switch DL3E-1 84444210
Brand Kromschroder
Key specifications
| Setting range | 0.3–3 mbar |
|---|---|
| Body material | glass fibre reinforced PBT plastic |
| Sensing element | tempered LSR diaphragm |
| Switching element | microswitch |
| Operating principle | diaphragm pressure switch |
| Electrical connection | AMP plugs |
| Weight | 0.3 g |
| Designed lifetime | 10 years |
| Diaphragm system | tempered LSR diaphragm system |
| Micro switch standard | EN 61058-1 |
| Strain relief torque | 65 Ncm |
| Safety class | II to VDE 0106-1 |
| Cover screw | 65 Ncm |
| Standards | EN 13611 and EN 1854 |
108.60EUR
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Description
The Kromschroder DL3E-1 air pressure switch (SKU 84444210) is a diaphragm pressure switch designed to regulate positive, negative, or differential air and flue gas pressures. It features a tempered LSR diaphragm system and a glass fibre reinforced PBT plastic housing. The switch operates within a pressure range of 0.3–3 mbar and includes a microswitch conforming to EN 61058-1. It is safety class II to VDE 0106-1 and has a designed lifetime of 10 years per EN 13611 and EN 1854. Electrical connection is via AMP plugs, and the weight is 0.3 kg.
Further details
| Gas type | air or flue gas, no flammable gases, no aggressive gases |
|---|---|
| Pressure type | positive, negative, or differential air and flue gas pressures |
| Special design pressure switch | can be used as 'special-design pressure switch' |
Choosing and fitting
When selecting a replacement pressure switch of this type, verify the pressure range, electrical connection type, and mounting configuration. Ensure the switch is suitable for the medium (air or flue gas) and that the electrical ratings match the control circuit. Check the physical dimensions and thread or tube connections to fit the existing installation.
Signs of failure
Common failure modes include diaphragm rupture or leakage, leading to loss of pressure sensing and improper burner operation. Symptoms may include burner lockout, failure to start, or unstable flame. Check for visible damage, test the switch with a manometer, and verify electrical continuity.
All specifications
| Setting range | 0.3–3 mbar |
|---|---|
| Body material | glass fibre reinforced PBT plastic |
| Sensing element | tempered LSR diaphragm |
| Switching element | microswitch |
| Operating principle | diaphragm pressure switch |
| Electrical connection | AMP plugs |
| Weight | 0.3 g |
| Designed lifetime | 10 years |
| Diaphragm system | tempered LSR diaphragm system |
| Micro switch standard | EN 61058-1 |
| Strain relief torque | 65 Ncm |
| Safety class | II to VDE 0106-1 |
| Cover screw | 65 Ncm |
| Standards | EN 13611 and EN 1854 |
Part numbers
| SKU | 84444210 |
|---|---|
| Additional article | 624.214.075 |
| Model | DL3E-1 |
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