Delfin DG300 SE ACD
ACD industrial vacuum cleaner for combustible dust in non ATEX-classified areas
The Delfin DG 300 SE ACD is a powerful three-phase industrial vacuum cleaner designed for the safe collection of combustible or hazardous dust in ordinary (non-ATEX-classified) areas. The model is tested according to IEC 60335-2-69 Annex AA (ACD – Applied for Combustible Dust) and equipped with an automatic filter cleaning system (AUT) and H14 HEPA filtration. The ATEX-certified cleaning system and high vacuum level of 4,400 mm H₂O make it ideal for heavy-duty industrial use where strong suction and continuous operation are required.
- ACD classification according to IEC 60335-2-69 Annex AA – for combustible dust handling outside ATEX zones.
- Motor: three-phase 400 V – 20 kW – 78 dB(A) – with PTC motor protection and IP65 electrical rating.
- Filter: antistatic polyester M-class + HEPA H14 (99.995%).
- Automatic filter cleaning system (AUT) – ATEX-certified.
- Container: 220 L – painted steel as standard / optional AISI 304 stainless steel.
- Filter surface: 120,000 cm² (primary) + 103,500 cm² (HEPA H14 99.995%).
Technical construction
The DG 300 SE ACD features a heavy-duty side channel blower designed for continuous 24/7 operation, delivering a maximum vacuum of 4,400 mm H₂O and airflow of 1,100 m³/h. The large filter chamber houses an antistatic M-class polyester filter (Dry Star) cleaned automatically through the AUT pneumatic system. The strong steel frame with forklift intakes ensures easy handling and stable operation. Suitable for use as a stationary vacuum or as part of a central vacuum system.
Safety and filtration
- Antistatic M-class primary filter and H14 HEPA final filter according to EN 1822-5.
- ATEX-certified automatic filter cleaning system (AUT).
- Electrical protection IP65 – motor with PTC temperature monitoring.
- High vacuum power – suitable for compact or heavy dust materials.
Technical note
The Delfin DG 300 SE ACD is an ACD-classified industrial vacuum cleaner that meets the IEC 60335-2-69 Annex AA standard for containment, filtration, and safe handling of combustible dust. It is typically used in heavy industry, metal processing, chemical plants, and pharmaceutical environments where dust is combustible, but the area itself is not ATEX-classified. The automatic filter cleaning system reduces maintenance frequency and ensures stable suction performance during continuous operation. The stainless steel version (AISI 304) is recommended for hygienic or corrosive environments.
Unsure about ACD vs. ATEX?
Read how IEC 60335-2-69 (Annex AA) differs from ATEX, and when ACD vacuums can safely be used for combustible dust.
FAQ
What does ACD mean?
ACD stands for “Applied for Combustible Dust” according to IEC 60335-2-69 Annex AA – tested for safe handling of combustible dust in non-classified areas.
Is the DG 300 SE ACD ATEX certified?
No, the vacuum itself is ACD-classified. Only the filter cleaning system is ATEX certified.
How is the filter cleaned?
Through the automatic AUT system, which shakes and cleans the filter without interrupting operation.
Can it be used as a central vacuum system?
Yes – with a 20 kW side channel blower and 1,100 m³/h airflow, it can be integrated into fixed pipe networks.
What filter class does it have?
HEPA H14 – 99.995% efficiency (EN 1822-5, MPPS method).
Related links
Technical specifications
| Specifications | Data |
|---|---|
| ACD classification | IEC 60335-2-69 Annex AA – Applied for Combustible Dust |
| Voltage / Frequency | 400 V – 50 Hz (3~) |
| Power / Current | 20 kW / 38.5 A |
| Electrical protection | IP 65 – PTC motor protection |
| Max vacuum | 4,400 mm H₂O |
| Max airflow | 1,100 m³/h |
| Inlet diameter | Ø 120 mm |
| Container capacity | 220 L – steel / optional AISI 304 stainless steel |
| Primary filter | Dry Star bag – antistatic polyester M-class |
| Filter surface (primary) | 120,000 cm² / Ø 780 mm |
| Cleaning system | AUT – automatic filter cleaning (ATEX certified) |
| HEPA filter | H14 – 103,500 cm² – 99.995% (MPPS) |
| Noise level | 78 dB(A) |
| Dimensions (L×W×H) | 95 × 180 × 220 cm |
| Weight | 810 kg |
| Accessories | Conductive hoses and tools (optional) |
