Pfannenberg Ex-Sounder IS-A 105N   IIC  24 DCIS-A 105N IIC 24 DC

Pfannenberg Ex-Sounder IS-A 105N IIC 24 DCIS-A 105N IIC 24 DC

Pfannenberg IS-A 105N 32033800000 is a 24 V DC intrinsically safe Ex sounder with up to 105 dB(A) output and 49 selectable alarm tones for hazardous area signalling.

SKU: 32033800000MPN: 32033800000
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Pfannenberg 32033800000 IS-A105N ATEX Explosion-Protected Intrinsically Safe Electronic Sounder 24V DC

The Pfannenberg 32033800000 is an IS-A105N intrinsically safe ATEX electronic sounder designed for reliable audible alarm signalling in hazardous industrial environments. Featuring a 103 dB(A) sound output, 49 selectable tones, and 24 V DC operation, this sounder provides dependable warning indication in explosive atmospheres including Zones 0, 1, and 2.

Designed for use in areas where dangerous explosive atmospheres may occur, the Pfannenberg IS-A105N combines high acoustic performance, compact construction, IP66 protection, and intrinsically safe operation when installed with suitable zener barriers or galvanic isolation.

Key Features

  • Intrinsically safe ATEX electronic sounder for hazardous areas
  • Manufacturer part number: 32033800000
  • Series: Pfannenberg IS-A105N
  • Sound output: 103 dB(A) at 1 metre
  • 49 selectable alarm tones
  • 24 V DC rated operating voltage
  • Operating voltage range: 10–28 V DC
  • Suitable for ATEX Zones 0, 1 and 2
  • IP66 protection rating for indoor and outdoor applications
  • Red self-extinguishing ABS housing
  • Sound level adjustable by up to 15 dB(A) using potentiometer
  • External selection of up to two tones for different alarm conditions

Applications

The Pfannenberg 32033800000 IS-A105N sounder is suitable for hazardous-area audible alarm applications including oil and gas facilities, chemical processing plants, offshore installations, process industries, fire alarm systems, and industrial safety installations requiring reliable intrinsically safe signalling.

Why Choose Pfannenberg 32033800000?

The Pfannenberg IS-A105N provides powerful audible alarm signalling with ATEX-certified intrinsic safety, multiple selectable tones, low power consumption, and rugged IP66 construction. Its high sound pressure level and hazardous-area compatibility make it ideal for critical safety applications in explosive environments.

Technical Specifications

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Brand Pfannenberg
Part Number 32033800000
Series IS-A105N
Product Type Explosion-Protected Electronic Sounder
Sound Output 103 dB(A) at 1 m
Number of Tones 49
Rated Voltage 24 V DC
Operating Voltage Range 10–28 V DC
Current Consumption 25 mA typical
Housing Colour Red
Housing Material Self-extinguishing ABS (UL94 V-0)
Mounting Type Surface Mount
Protection Rating IP66
Operating Temperature -40°C to +60°C
Hazardous Area Approval SIRA 04 ATEX 2301 X
Explosion Protection Intrinsically Safe
Dimensions Approx. 130 x 130 x 132 mm
HS Code 85318070
IP Rating IP66
Colour Red

Frequently Asked Questions

What is the Pfannenberg 32033800000 used for?

The Pfannenberg 32033800000 is used as an intrinsically safe ATEX electronic sounder for audible warning signals in hazardous industrial environments.

How many tones does the Pfannenberg 32033800000 provide?

The IS-A105N sounder provides 49 selectable alarm tones and allows external selection of tones for different alarm conditions.

What voltage does the Pfannenberg 32033800000 operate on?

The Pfannenberg 32033800000 operates on a 24 V DC supply with an operating range of 10–28 V DC.

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