Description
The Siemens ST-75-R-WP, part number 500-636106, is a weatherproof wall-mounted strobe designed for commercial fire alarm notification systems. It features a red housing, clear lens, FIRE marking, and xenon visual signaling for outdoor and harsh-environment applications.
Siemens identifies this model as a legacy product that has been discontinued. Buyers should verify condition, mounting accessories, and system compatibility before purchase.
Product Functions
- Visual fire alarm notification
- Weatherproof wall installation
- One flash per second
- Synchronized or free-running operation
- Reverse-polarity circuit supervision
- Commercial life-safety signaling
Electrical & System Information
The ST-75-R-WP operates from compatible 16–33 VDC or VRMS notification appliance circuits. It can synchronize through compatible Siemens control panels, DSC synchronization modules, and PAD-series NAC extenders.
Features
- Xenon flash tube
- Red housing with FIRE marking
- Clear Lexan lens
- Weatherproof construction
- Low-current design
- One flash per second
- Compatible with Siemens synchronization protocol
Mounting & Design
The appliance is designed for weatherproof wall mounting. Approved mounting options include compatible Siemens weatherproof backboxes and the WPS-KIT gasket and hardware package.
Always confirm that the required weatherproof backbox and installation hardware are included with the unit.
Protection & Applications
Suitable for:
- Building Exteriors
- Parking Garages
- Loading Docks
- Industrial Facilities
- Warehouses
- Schools
- Hospitals
- Transportation Facilities
Compatibility
Compatible synchronization sources may include:
- Siemens DSC Sync Modules
- FireFinder XLS Panels
- MXL Fire Alarm Panels
- Siemens 50-, 252-, and 504-Point Panels
- PAD-3 and PAD-4 NAC Extenders
Always verify panel, voltage, backbox, and synchronization compatibility before installation.
Technical Specifications
Manufacturer: Siemens
Model: ST-75-R-WP
Part Number: 500-636106
Product Type: Weatherproof Wall Strobe
Mounting: Wall
Color: Red
Lens: Clear
Marking: FIRE
Light Source: Xenon Flash Tube
Operating Voltage: 16–33 VDC/VRMS
Candela Rating: 115 cd under UL 1638; 30 cd with 180 cd on-axis under UL 1971
ULC Light Output: 30 cd at -40°C
Flash Rate: One Flash per Second
Maximum Current: 0.146 A DC or 0.235 A FWR
Operating Temperature: -40°F to 150°F (-40°C to 66°C) for weatherproof operation
Maximum Humidity: 95% RH
Listings: UL, ULC, FM, and CSFM
Product Status: Discontinued
Verify all ratings and approvals against the specific unit label and project requirements before installation.
Applications
The Siemens ST-75-R-WP is commonly used in commercial fire alarm systems requiring dependable visual notification in outdoor, wet, or harsh environments.





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