Pfannenberg PRO 10-Ex Ex Sounder Zone 2 / 22

Name: Pfannenberg PRO 10-Ex Ex Sounder Zone 2 / 22 – Datasheet & Quote
Brand: Pfannenberg
SKU: PRO 10-Ex

A cast-aluminium Ex sounder for zone 2 and zone 22

The Pfannenberg PRO 10-Ex is an explosion-protected sounder from the Protect series, with a cast aluminium housing and up to 116 dB(A). Pfannenberg specifies it for potentially explosive areas in zone 2 (category 3G) and zone 22 (category 3D), and for Class I / II / III Division 2, with type of protection Ex ec / Ex tc. It runs from 115/230 V AC, 12 to 48 V DC or 24 to 48 V AC and operates from -40 °C to +55 °C with IP66/IP67 protection.

It offers 80 tones plus three additional tones selectable externally, a sound-level reduction of up to 30 dB (internally or externally selectable), and a pre-alarm and main-alarm function that reduces the sound level for the pre-alarm to avoid shock reactions. The seal and screws are captive to shorten wiring and installation time.

Technical specifications

Parameter	Specification
Manufacturer	Pfannenberg
Series / model	PROTECT PRO 10-Ex
Function	Ex sounder
Type of protection	Ex ec / Ex tc
Category / area of use	3G (zone 2), 3D (zone 22); Class I / II / III Div 2
Certificate	Pfannenberg PDG 24.0009 X; UL
Temperature class	Up to IIC T4 at ambient -40 °C to +55 °C; further details in the certificate and manual
Rated voltage	115/230 V AC (95-265 V); 12-48 V DC (10-60 V); 24-48 V AC (18-53 V)
Current consumption maximum	95 mA at 230 V AC; 400 mA at 24 V DC; 700 mA at 24 V AC
Sound pressure level	114 dB(A) at DIN tone at 1 m; 116 dB(A) maximum
Sound level reduction	-4, -10, -16, -22, -26 and -30 dB
Alarm tones	80, with 3 externally selectable
Sound time-out	60 s, 15 min, 45 min or none
Duty cycle	100%
Protection	IP66 / IP67, NEMA 4/4X, IK09
Operating / storage temperature	-40 °C to +55 °C / -40 °C to +70 °C
Material	Aluminum
Cable fitting clamping range	7 to 13 mm; terminals 2.5 mm2 stranded, 4.0 mm2 solid
Weight	2650 g (AC and 24-48 V AC); 2680 g (DC)

Ordering and variants

Rated voltage	Article number
115 / 230 V AC	23150640007
12 – 48 V DC	23150630007
24 / 48 V AC	23150420007

Pfannenberg also lists DNV, MED and MER marine versions, article numbers on request, and a sounder-plus-light combination device in the PRO L 10-Ex. The 3D coverage data give an acoustic coverage of 51 x 49 x 24 m at 80 dB(A), 29 x 27 x 14 m at 85 dB(A) and 16 x 15 x 8 m at 90 dB(A) with the DIN tone.

Selection and installation notes

This model is for zone 2 and zone 22, not for zone 1. The Ex certificate carries the special conditions of use (the X suffix), so read the certificate and the manual before installation. Match the cable fitting to the 7 to 13 mm clamping range and verify the temperature class against the process.

Documents and quotation

The attached Pfannenberg product sheet covers the PRO 10-Ex. 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.

Pfannenberg signaling range

The signaling range covers PATROL and PYRA combined sounders and flashing lights, PROTECT sounders for hazardous areas, and INTENSE modular signal towers. PATROL PA X units are offered from 105 dB(A) to 122 dB(A), and the PRO 10-Ex sounder is specified for zone 2 and zone 22 explosive atmospheres with Ex ec and Ex tc protection.

Requesting a quote for Pfannenberg devices

Send the article number or the full device designation, such as PA X 1-05, together with the supply voltage, lens colour, housing colour and any approval the project requires, for example EN 54-3 or an Ex certificate. Pfannenberg approvals apply to specific versions, so the exact article number is needed to confirm them.

Frequently Asked Questions