Pfannenberg – PA 20 10-60DC

The Pfannenberg PATROL PA 20 10-60DC delivers extremely powerful audible warning signals for large industrial facilities, infrastructure projects, and safety-critical applications. As the highest-output model within the PATROL sounder range, it combines exceptional sound performance, wide-area coverage, and simplified installation to provide highly effective alarm signaling in demanding environments.

Furthermore, the PA 20 incorporates Pfannenberg’s advanced 3D Coverage technology, enabling outstanding sound distribution and excellent penetration around machinery, structures, and other acoustic obstacles. As a result, operators can achieve effective warning coverage across large areas while reducing the number of sounders required.

The PATROL design also helps simplify installation and commissioning. Its robust impact-resistant housing and industrial-grade protection make it suitable for indoor and outdoor environments, while external tone selection provides flexibility for a wide variety of alarm and warning applications.

Key Features

• High-performance industrial sounder
• Maximum sound output of up to 122 dB(A)
• Advanced PATROL 3D Coverage technology
• Excellent acoustic penetration and wide-area coverage
• Reduces the number of signalling devices required
• Fast and simple installation
• External tone selection
• Impact-resistant housing
• Suitable for indoor and outdoor applications
• NEMA 4 / 4X environmental protection
• UL approved
• EN54-3 certified
• VdS approved
• Approved by CNBOP-PIB
• EurAsian Conformity (EAC) certified

Acoustic Coverage

PA 20 LO (Low Output)

For applications requiring VdS / EN54-3 approval, the factory setting limits the sound output to 120 dB(A).

Coverage area with DIN tone:

• 80 dB(A): 68 × 77.6 × 68 m
• 85 dB(A): 38.2 × 43.7 × 38.2 m
• 90 dB(A): 21.5 × 24.5 × 21.5 m

PA 20 HO (High Output)

For industrial applications where VdS / EN54-3 certification is not required, the sound output can be increased to the maximum setting of 122 dB(A).

Coverage area with DIN tone:

• 80 dB(A): 85.6 × 97.7 × 85.6 m
• 85 dB(A): 48.1 × 55 × 48.1 m
• 90 dB(A): 27.1 × 30.9 × 27.1 m

Electrical Specifications

Available Supply Voltages

• 95-265 VAC
• 24 VAC
• 10-60 VDC

Rated Frequency

• 50/60 Hz (AC versions)

Operating Voltage Range

• 95-265 VAC
• 20-30 VAC
• 10-60 VDC

Nominal Current Consumption

• 95-265 VAC: 75-330 mA
• 24 VAC: 500-1800 mA
• 10-60 VDC: 120-880 mA