The Simplex 49WPBB-VOCW Weatherproof Back Box is a white ceiling surface-mount accessory designed for compatible Simplex 49 Series notification appliances. It provides the required back-box arrangement for applicable surface-mounted and weatherproof ceiling strobe configurations.
Simplex specifically identifies the 49WPBB-VOCW as the white Surface/WP back box, with the 49WPBB-VOCR serving as the corresponding red version.
Product Functions
- Provides surface mounting for compatible notification appliances
- Designed for ceiling-mount configurations
- White finish
- Weatherproof back-box configuration
- Compatible with applicable Simplex 49VO Series appliances
- Supports weatherproof 49VO ceiling strobe configurations
- Provides enclosure space for notification wiring
- Supports compatible appliance and cover assemblies
- Functions as a passive mounting accessory
- Requires no independent operating power
Surface-Mount Configuration
The 49WPBB-VOCW is specifically intended for surface-mounted ceiling notification appliances.
Simplex identifies it as:
Surface/WP Back Box — White
The corresponding red version is:
49WPBB-VOCR — Surface/WP Back Box — Red
The white configuration allows the enclosure to match compatible white Simplex notification appliance covers.
Weatherproof Applications
The 49WPBB-VOCW is used as the back box for applicable weatherproof Simplex 49VO ceiling strobes.
A compatible weatherproof configuration can include:
49VOH-APPLC-O — Weatherproof ceiling strobe appliance
49VOC-CWF-O — White FIRE weatherproof cover
49WPBB-VOCW — White weatherproof surface back box
Other compatible cover configurations are available for ALERT, logo-only, and other notification requirements.
49VO Compatibility
The 49WPBB-VOCW is documented for use with compatible Simplex 49VO ceiling visual notification appliances.
It supports both applicable indoor surface-mount configurations and the dedicated weatherproof 49VO appliance arrangement.
The back box itself does not contain notification electronics, a strobe, or an IDNAC address.
Important Weatherproof Note
Simplex specifically notes that using a weatherproof back box alone does not make a standard notification appliance weatherproof.
For a true weatherproof application, the complete compatible weatherproof appliance, cover, back box, and associated mounting configuration must be used.
This distinction is important when selecting the 49WPBB-VOCW for outdoor or extended-environment applications.
Passive Operation
The 49WPBB-VOCW is a mechanical enclosure rather than an electronic fire alarm device.
Operating Voltage: Not applicable
Current Draw: Not applicable
IDNAC Address: Not applicable
Candela Setting: Not applicable
Audible Output: Not applicable
All electrical and notification functions are provided by the compatible appliance installed with the back box.



