{"product_id":"allen-bradley-855p-b30se22","title":"855P-B30SE22","description":"\u003ch2\u003eOverview of Allen-Bradley 855P-B30SE22\u003c\/h2\u003e\n\n\u003cp\u003eThe Allen-Bradley 855P-B30SE22 is a compact 30 mm panel mount sounder designed for industrial signaling and alarm applications. This piezoelectric audible device operates on 12 to 24V AC\/DC voltage and delivers a clear 72 dB output at a main frequency of 3500 Hz. The black polycarbonate housing provides durability and protection in demanding environments, meeting IP65 and NEMA 4X ratings for dust and water resistance. Weighing only 25 grams with a 30 mm outer diameter and 42 mm height, this sounder fits standard 22.5 mm mounting holes and can accommodate 30.5 mm holes using the optional adapter kit. The plug-in terminal block accepts wire sizes up to 2.5 mm² (14 AWG) with IP2X finger protection. Sound selection is controlled externally through terminal connections, allowing integration with existing control systems. The unit draws a nominal 20 mA at 24V AC\/DC and operates reliably across a temperature range starting from -25°C, making it suitable for harsh industrial environments where consistent audible alerts are critical.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features of Allen-Bradley 855P-B30SE22\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e72 dB audible output with 3500 Hz main frequency for clear signaling\u003c\/li\u003e\n\u003cli\u003eUniversal voltage input: 12 to 24V AC\/DC (10-26V range)\u003c\/li\u003e\n\u003cli\u003eIP65 and NEMA 4X rated polycarbonate housing\u003c\/li\u003e\n\u003cli\u003eCompact 30 mm design with 22.5 mm mounting hole compatibility\u003c\/li\u003e\n\u003cli\u003eLow power consumption: 20 mA nominal current\u003c\/li\u003e\n\u003cli\u003eExternal sound selection via terminal connection\u003c\/li\u003e\n\u003cli\u003eOperating temperature from -25°C for cold environment applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Specs of 855P-B30SE22\u003c\/h2\u003e\n\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupply Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12 to 24V AC\/DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 to 26V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLoudness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e72 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSound Frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3500 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20 mA at 24V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHousing Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePolycarbonate, black\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProtection Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIP65, NEMA 4X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOuter Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e42 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting Hole\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e22.5 mm (30.5 mm with adapter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25 grams\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-25°C and above\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTerminal Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePlug-in block, up to 2.5 mm² (14 AWG)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eApplications \/ Use Case\u003c\/h2\u003e\n\n\u003cp\u003eThe Allen-Bradley 855P-B30SE22 panel mount sounder serves as a critical audible signaling component in manufacturing facilities, process control environments, and machine safety systems. This device alerts operators to alarm conditions, process completion events, equipment malfunctions, or safety zone breaches. Common applications include packaging machinery where cycle completion signals are needed, conveyor systems requiring jam or fault notifications, and automated assembly lines that demand attention for material shortages or quality issues. The sounder integrates with PLC outputs, safety relays, or standalone control circuits to provide immediate audible feedback. Its IP65 rating makes it appropriate for food and beverage processing areas requiring washdown capability, pharmaceutical clean rooms, and outdoor equipment installations exposed to rain or dust. The wide voltage range accommodates both North American 24V DC control systems and European 12V AC applications. The external sound selection feature allows different alarm tones to be triggered based on urgency level, enabling operators to distinguish between routine notifications and critical faults without visual confirmation. Installation in control panels, operator stations, or directly on machine housings provides localized alerting exactly where attention is required.\u003c\/p\u003e\n\n\u003ch2\u003eRelated Resources\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/\" target=\"_blank\"\u003eLeadTime.ca – Industrial Automation Components \u0026amp; Repair Services\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/collections\/allen-bradley\" target=\"_blank\"\u003eView All Allen Bradley Products\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/blogs\/learning-center\/examples-of-industrial-automation-control-systems\" target=\"_blank\"\u003eExamples of Industrial Automation and Control Systems\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/products\/allen-bradley-194e-sy\" target=\"_blank\"\u003eAllen Bradley 194E-SY Disconnect Switch\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/products\/allen-bradley-1609-d600n\" target=\"_blank\"\u003eAllen Bradley 1609-D600N UPS Backup Power Supply\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":47870764417323,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/4671\/7995\/files\/Leadtime_b8cd2035-bbf9-4546-98da-f33c9454709a.png?v=1723532705","url":"https:\/\/leadtime.ca\/products\/allen-bradley-855p-b30se22","provider":"LEADTIME","version":"1.0","type":"link"}