Hochiki YBO-R/3 ESP Intelligent Wall Sounder Mounting Base | Electronics Free, Slim 13mm Profile
£1.72
Key features
- Electronics-free base design
- Stainless steel wiring contacts
- Takes 2.5 mm² cables
Downloads
Summary
The Hochiki YBO-R/3 is a wall sounder mounting base built specifically for Hochiki’s CHQ-WS2 Wall Sounder and CHQ-WSB2 Wall Sounder Beacon, with no onboard electronics to go wrong or add complexity on site. That electronics-free approach means there’s nothing extra to commission or troubleshoot when you’re fitting out a sounder circuit.
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For you, that translates into less time spent diagnosing base-related faults during commissioning or maintenance visits, and one less component that can fail independently of the sounder itself. On a job with multiple sounder points, that adds up across the install.
The base delivers this through a slim 13 mm profile that sits flush against the wall, stainless steel wiring contacts rated for 2.5 mm² cable, and square cable clamps that speed up termination. It’s fully compatible with Hochiki’s ESP range of sensors, so it drops straight into an existing ESP installation without compatibility checks.
Features
- Electronics-free design – nothing onboard to configure, fault-find or replace separately from the sounder
- Stainless steel wiring contacts – built to hold up against corrosion over the life of the installation
- Quick-connect square cable clamps – speeds up cable termination when you’re wiring multiple sounder points
- Slim 13 mm profile – sits discreetly against the wall, useful where space behind the base is limited
- Takes 2.5 mm² cables – accommodates standard fire cable without needing adapters or smaller core runs
- Compatible with the Hochiki ESP range – drops into existing ESP-based systems alongside other ESP devices
- Available in red or white – lets you match the base finish to the sounder or the decor
Specifications
| Operating Temperature Range | -10 °C to +50 °C |
|---|---|
| Storage Temperature Range | -30 °C to +70 °C |
| Maximum Humidity | 95% RH – non condensing (at 40 °C) |
| Colour / Material | Red or white / ABS |
| Weight | 60 g |
| Diameter | 100 mm |
| Height | 13 mm |
| Fixing Centres | Beam head ± 0.3°, reflector ± 2° (static, not auto-aligning) |
| Alarm Sensitivity Levels | 48 – 74 |
| Maximum Wire Thickness | 2.5 mm² cables |
FAQ
Hochiki designed the YBO-R/3 specifically for the CHQ-WS2 Wall Sounder and CHQ-WSB2 Wall Sounder Beacon, and it’s stated as fully compatible with Hochiki’s ESP range of sensors. If you’re pairing it with a different device, check the manufacturer’s documentation first to confirm fit and contact alignment. No. The YBO-R/3 is electronics-free, so all the sounder functionality sits in the CHQ-WS2 or CHQ-WSB2 itself. The base is purely a wiring and mounting interface, which keeps commissioning straightforward. The base is supplied with square cable clamps for termination, and its stainless steel contacts are rated to take cable up to 2.5 mm². This is designed for a quick, secure connection without extra tooling. The datasheet doesn’t specify a mounting method, only that it has a slim 13 mm height and a 100 mm diameter. If your job requires flush mounting into a specific back box, check Hochiki’s installation documentation to confirm compatibility. The base is rated for up to 95% RH non-condensing at 40°C and an operating range of -10°C to +50°C, but no IP rating is given in the datasheet. For outdoor or exposed locations, confirm suitability with Hochiki before specifying.Will this base work with Hochiki sounders other than the CHQ-WS2 and CHQ-WSB2?
Does the base need power or configuration before the sounder is fitted?
How is cable terminated into the base?
Is this base suitable for surface or flush mounting?
Can this base be used in high-humidity or outdoor locations?
Downloads
- Datasheet (Adobe PDF)
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