Delfin DG 300 SE PN ACD
ACD industrial vacuum cleaner for combustible dust in non ATEX-classified areas
The Delfin DG 300 SE PN ACD is a powerful three-phase industrial vacuum cleaner with pneumatic filter cleaning, designed for the safe collection of fine and combustible dust in ordinary (non-ATEX-classified) areas. The unit is tested according to IEC 60335-2-69 Annex AA (ACD – Applied for Combustible Dust) and equipped with an integrated compressor, H14 HEPA filtration, and an ATEX-certified cleaning system. The large filter surface of 260,000 cm² makes it ideal for fine, clogging, or hazardous dust where conventional cleaning is insufficient.
- ACD classification according to IEC 60335-2-69 Annex AA – for combustible dust outside ATEX zones.
- Motor: three-phase 400 V – 20 kW – 77 dB(A) – with PTC thermal protection and IP65 electrical rating.
- Filter: 4 × antistatic polyester cartridges (M-class) + HEPA H14 final filter (99.995%).
- Pneumatic PN cleaning system with compressed air – integrated compressor included.
- Container: 220 L – painted steel as standard / optional AISI 304 stainless steel.
- Filter surface: 260,000 cm² (primary) + 103,500 cm² (HEPA H14 99.995%).
Technical construction
The DG 300 SE PN ACD features a high-performance side channel blower for continuous 24/7 operation, delivering a vacuum of up to 5,000 mm H₂O (4,400 mm continuous) and an airflow of 1,100 m³/h. The four cartridge filters are cleaned automatically by compressed air pulses during suction, ensuring constant suction and filtration efficiency. The strong steel frame with forklift intakes and large wheels allows easy handling and stable operation under demanding industrial conditions.
Safety and filtration
- Antistatic M-class primary filter and H14 HEPA final filter according to EN 1822-5.
- ATEX-certified pneumatic cleaning system with integrated compressor.
- Electrical protection IP65 – motor with PTC thermal sensor against overheating.
- Low noise level (77 dB(A)) and extended filter area for fine and compact dusts.
Technical note
The Delfin DG 300 SE PN ACD is an ACD-classified industrial vacuum cleaner, tested for safe handling of fine and combustible dust in non-classified areas. The pneumatic filter cleaning system allows uninterrupted operation and significantly extends filter lifetime. It is used in chemical, pharmaceutical, and metal processing industries where high safety and filtration performance are required. 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 PN mean?
PN stands for pneumatic cleaning – automatic cleaning of filters with compressed air during suction for constant airflow and performance.
Is the DG 300 SE PN ACD ATEX certified?
No, the vacuum is ACD-classified and designed for non-zoned areas. Only the filter cleaning system is ATEX-certified.
How does it differ from the DG 300 SE ACD?
This version includes a pneumatic cleaning system and a larger filter surface (260,000 cm²) for fine or clogging dust.
Can it be used as a central vacuum system?
Yes – ideal for continuous operation in production lines and centralized installations.
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 | 5,000 mm H₂O (4,400 mm continuous) |
| Max airflow | 1,100 m³/h |
| Inlet diameter | Ø 120 mm |
| Container capacity | 220 L – steel / optional AISI 304 stainless steel |
| Primary filter | 4 × cartridges – antistatic polyester M-class |
| Filter surface (primary) | 260,000 cm² / Ø 780 mm |
| Cleaning system | PN – automatic pneumatic cleaning (integrated compressor) |
| HEPA filter | H14 – 103,500 cm² – 99.995% (MPPS) |
| Noise level | 77 dB(A) |
| Dimensions (L×W×H) | 92 × 220 × 220 cm |
| Weight | 760 kg |
| Accessories | Conductive hoses and tools (optional) |
