The Siemens AS-HMC-CW-WP Weatherproof Ceiling Horn Strobe is a two-wire audible/visible fire alarm notification appliance designed for weatherproof ceiling installations. Siemens identifies model AS-HMC-CW-WP, product number 500-636182, as a white high-output multi-candela ceiling horn strobe.
The appliance combines an electronic horn with a high-intensity synchronized strobe. Its selectable visual output and multiple audible settings allow it to accommodate different fire alarm notification requirements.
Product Functions
- Provides audible fire alarm notification
- Provides visible fire alarm notification
- Combines horn and strobe functions
- Designed for ceiling mounting
- Weatherproof configuration
- White housing
- High-output multi-candela strobe
- Selectable 115 or 177 candela
- Continuous horn operation
- Temporal 3 / Code 3 horn operation
- Three selectable audible levels
- Supports synchronized horn operation
- Supports synchronized strobe operation
- Uses two-wire notification operation
High Multi-Candela Strobe
The AS-HMC-CW-WP uses a high-output ceiling strobe with two field-selectable settings:
115 cd
177 cd
These settings distinguish the HMC model from standard multi-candela ceiling strobes, which use lower candela ranges.
The higher visible output makes the appliance useful in locations requiring greater visual notification coverage.
Electronic Horn
The horn can be configured for:
Continuous
or
Temporal 3 / Code 3
operation.
The appliance also provides three selectable dBA settings, allowing the installer to adjust the horn output according to the audible notification requirements of the protected area.
Temporal 3 Signaling
Temporal 3 is the standardized fire evacuation signaling pattern used by compatible fire alarm systems.
When multiple AS-series appliances are operated with compatible Siemens synchronization equipment, their audible signals can be coordinated to maintain a distinct Temporal 3 pattern throughout the notification area.
Weatherproof Configuration
The WP designation identifies this model as the weatherproof configuration.
The exact Siemens product description is:
Horn Hi Multi-Candela Ceiling White Weatherproof
This makes the AS-HMC-CW-WP suitable for installations where environmental protection is required beyond that of a standard indoor horn strobe.
Ceiling-Mount Configuration
The AS-HMC-CW-WP is specifically designed for ceiling mounting.
Its high-intensity ceiling strobe provides a light-distribution pattern intended for ceiling notification applications. It should not be substituted directly with a wall model because wall and ceiling strobes use different optical distribution patterns.
A related wall version is the:
AS-HMC-W-WP — White weatherproof wall horn strobe
Synchronized Notification
The AS-HMC-CW-WP supports synchronized audible and visible notification.
Compatible Siemens synchronization sources documented for the AS Series include:
- 5406B synchronization modules
- MPC-6000 fire alarm panels
- MPC-7000 fire alarm panels
- RSE-300 power supplies with synchronization capability
Synchronization allows multiple strobes to flash together and compatible horns to produce coordinated Temporal 3 signaling.
Two-Wire Operation
The AS-HMC-CW-WP uses a two-wire horn/strobe architecture.
With compatible synchronization equipment, the same two-wire circuit can support:
- Horn activation
- Strobe activation
- Audible synchronization
- Visual synchronization
- Audible silence while maintaining visual notification
This reduces wiring requirements compared with notification configurations requiring separate circuits for horn and strobe control.
Electrical & Notification Information
Product Number: 500-636182
Device Type: Horn Strobe
Notification: Audible / Visible
Strobe Output: 115 / 177 cd
Horn Modes: Continuous / Temporal 3
Audible Levels: Three selectable settings
Mounting: Ceiling
Color: White
Environment: Weatherproof
Circuit Configuration: Two-wire
Exact current consumption should be calculated using the applicable Siemens data sheet and the selected horn and candela settings.



