Pfannenberg PA X 20-10 PATROL Flashing Sounder 122 dB(A)

A 122 dB(A) PATROL sounder and flashing light for noisy industrial areas

The Pfannenberg PA X 20-10 and PA X 20-15 are the loudest PATROL flashing sounders, with up to 122 dB(A) and 10 J or 15 J of flash energy. They are for large halls, plant areas and noisy process locations where a compact unit would not be heard. The PA X 10-10 and PA X 10-15 use the same housing family at 117 dB(A). All keep the PATROL features: factory pre-wired sounder and light, impact-proof IP66 housing, 80 tones with 4 externally selectable, and an operating range from -40 °C to +55 °C.

Pfannenberg lists UL approval and EAC on the product page, with DNV, MED and MER certificates in the downloads; no EN 54 mark appears for this model in the product sheet.

Technical specifications

Common data: sound level reduction up to -12 dB via potentiometer; operating ranges 187-255 V AC, 90-135 V AC, 18-30 V DC plus further DC ranges; relative humidity 90%; IP66; protection class II; PC/ABS blend sounder housing in RAL 3000 or RAL 7035 with a polycarbonate lens; 4 x M20 knock-outs on the side and one on the back; 6 to 13 mm cable grommet; light emission still 70% after 8,000,000 flashes.

Ordering and accessories

Pfannenberg orders these units by voltage (230 V AC, 115 V AC or 24 V DC), lens colour (clear, yellow, amber or red, with blue also offered on some versions) and housing colour (red or grey). The listed accessories are the surface gasket 28300000006 and the tamper-proof sealing 28300000002 (pack of 4). The product sheet carries the article-number table; quote it from the sheet rather than from memory because the PA X 10 and PA X 20 share a table.

Selection notes

Choose the sound output from the ambient noise at the alarm position, not only the room size. Reducing the sound level with the potentiometer is possible by up to 12 dB, so a loud unit can be commissioned down. The wider housing needs more mounting space than the PA X 1 and PA X 5; the sheet gives the dimensions. Use the Pfannenberg Sizing Software to calculate the number of devices.

Documents and quotation

The attached Pfannenberg product sheet covers the PA X 10-10, PA X 10-15, PA X 20-10 and PA X 20-15. Confirm the final article number, voltage, lens colour, housing colour, tone and approval requirement before ordering, because the approvals apply to specific versions. For a quotation, send the article number or the full version, quantity, supply voltage and the project specification. Browse more Fire & Gas Detectors on this site.