Wheelock OSB-W Outdoor Surface Backbox

The Wheelock OSB-W Outdoor Surface Backbox is a dedicated mounting accessory for compatible Wheelock outdoor notification equipment. Eaton documentation specifically identifies the OSB-W as the white dedicated surface-mount backbox for ET-1080-X-ULC-D speakers, with OSB-R serving as the corresponding red version.

The backbox provides the enclosure and mounting interface required for surface installations where the compatible speaker cannot be installed directly onto a recessed electrical box.

Product Functions

• Provides surface mounting for compatible Wheelock equipment
• Designed for outdoor speaker installations
• White finish
• Supports ET-1080-X-ULC-D speakers
• Provides space for field wiring
• Supports surface-mounted conduit arrangements
• Provides a dedicated enclosure behind the notification appliance
• Designed to match compatible white Wheelock speakers
• Functions as a passive mounting accessory
• Requires no independent electrical power

ET-1080 Speaker Compatibility

Eaton specifically documents the OSB-W for use with:

ET-1080-X-ULC-D — Outdoor Speaker

The manufacturer’s technical data states that the ET-1080-X-ULC-D uses a dedicated surface-mount backbox:

OSB-R: Red devices

OSB-W: White devices.

This makes the OSB-W the appropriate color-matched enclosure for compatible white ET-1080 outdoor speaker configurations.

Outdoor Installation

The OSB-W is associated with Wheelock’s outdoor notification equipment.

Eaton identifies the compatible ET-1080-X-ULC-D speaker as listed for indoor/outdoor use, with an operating temperature range of:

-40°F to 150°F

-40°C to 66°C

and maximum humidity of approximately:

98% RH.

The complete installation must use the manufacturer-specified speaker, backbox, sealing, and wiring arrangement to maintain the applicable environmental rating.

White Configuration

The specific OSB-W configuration is:

Color: White

Application: Surface mounting

Compatible Appliance: White ET-1080 outdoor speaker

The corresponding:

OSB-R

is used with red devices.

Correct color selection provides a consistent finished appearance between the backbox and installed notification appliance.

Passive Operation

Therefore, it requires no:

Operating Voltage: Not applicable
Current: Not applicable
Device Address: Not applicable
Speaker Tap: Not applicable
Candela Setting: Not applicable

All electrical and audible functions are provided by the Wheelock notification appliance installed on the backbox.

Installation Information

Field wiring is routed into the backbox, after which the compatible white notification appliance is attached to the enclosure. Eaton’s ET80/ET-1010 family documentation specifies #12 to #18 AWG IN/OUT screw-terminal wiring for the associated speaker products.

The manufacturer’s installation instructions for the exact notification appliance should be followed to maintain the required outdoor rating and ensure correct mounting.

OSB-W Datasheet