Delfin MTL 302 ACD
Single-phase ACD vacuum cleaner with dual parallel bypass motors -- for combustible dust in non-ATEX areas
- 3D-printing workshops handling metal powder or polymer dust
- Bakeries and flour mills working with flour dust
- Powder coating outside ATEX-classified booths
- Food production involving sugar, spice or dry-milk dust
- Battery and electronics workshops with combustible fine dust
- IEC 60335-2-69 Annex AA (ACD)
- Low Voltage Directive 2014/35/EU
- EMC Directive 2014/30/EU
Delfin MTL 302 ACD
The MTL 302 ACD is built to collect combustible dust in production areas that are not ATEX-classified but where the dust itself poses an ignition risk. Two bypass motors connected in parallel deliver substantial airflow without requiring three-phase power, and the internal construction follows IEC 60335-2-69 Annex AA, so the dust container is treated as Zone 20 regardless of the surrounding environment.
Applications
- 3D-printing workshops handling metal powder or polymer dust
- Bakeries and flour mills working with flour dust
- Powder coating outside ATEX-classified booths
- Food production involving sugar, spice or dry-milk dust
- Battery and electronics workshops with combustible fine dust
Technical specifications
| ATEX marking | ACD EX 1/- D (intern konstruktion svarende til Zone 20 per IEC 60335-2-69 Annex AA) |
|---|---|
| Internal / external zone | 20 / ikke-ATEX |
| Motor type | 2 bypass-motorer i parallel (2 × 1,1 kW) |
| Duty cycle | Periodic |
| Airflow | 360 m³/h |
| Vacuum | 245 mbar (2500 mmH₂O) |
| Container | 40 L |
| Sound pressure | 74 dB(A) |
| Filter class | H class |
| Filter type | HEPA H14 (EN 1822), 99,995 % MPPS, 26.000 cm² |
| Primary filter | Stjerne/taske polyester ANT M-klasse antistatisk, 4.000 cm², Ø 360 mm |
| Collection system | Synthetic safebag |
| Material | AISI 304 |
| IP class | IP64 |
| Power | 2.2 kW |
| Current | 10 A |
| Voltage | 230 V / 50-60 Hz |
| Inlet | Ø 50 mm |
| Dimensions (L × W × H) | 440 x 420 x 780 mm |
| Weight | 25 kg |
Questions and answers
Can the MTL 302 ACD be used in an ATEX-classified Zone 22?
No. The MTL 302 ACD is certified to IEC 60335-2-69 Annex AA and is intended only for areas that are NOT ATEX-classified. If your area is classified as Zone 22 or stricter, choose a model from our ATEX range.
Why does it have two motors instead of one?
Two bypass motors in parallel deliver roughly double the airflow without requiring three-phase power. This suits workshops and smaller production areas where only single-phase 230 V is available, but where the task demands more suction than a single 1.1 kW motor can provide.
Why is the internal part called Zone 20 when the surrounding area is non-ATEX?
Inside the dust container, a continuous explosive dust atmosphere exists by definition during operation -- that qualifies it as Zone 20. IEC 60335-2-69 Annex AA requires that the vacuum's internals safely handle this atmosphere even when the surrounding environment is non-ATEX.
What is the difference between ACD and ATEX?
ACD (Appliance for Combustible Dust) covers vacuums for combustible dust in areas that are NOT ATEX-classified -- typically because the operating pattern or dust quantity does not trigger classification. ATEX vacuums are certified to the ATEX Directive (2014/34/EU) and may be used in classified zones. See the article "ACD vacuum cleaner -- when and why" for a deeper explanation.
What filter class is fitted?
The MTL 302 ACD is supplied in filter class H with a HEPA H14 filter per EN 1822 (99.995 % efficiency at MPPS). This ensures fine dust is not recirculated to the work area.
How is the dust collected?
The MTL 302 ACD uses a synthetic safebag that contains the dust and lets you change bags without contact with the content. A Longopac system is NOT used on this model.