The Hochiki YBN-R/3 is the standard ESP protocol sensor base used across UK commercial and residential fire alarm installations. It accepts the ALN-EN optical smoke, ATJ-EN heat and ACC-EN multi-sensor heads, giving installers one common mounting point for the full ESP detector range.
Trade price is £1.59. That is the amount you pay on the shop — we are not VAT registered, so no extra tax is added at checkout. Both ivory (YBN-R/3) and white (YBN-R/3(WHT)) finishes are available at the same price to match ceiling colours on most sites.
Key points for UK trade use:
- Compatible with all standard Hochiki ESP detector heads
- Address is programmed into the head with the TCH-B200 tool, not stored in the base
- Fixing centres 48–74 mm for easy ceiling box or conduit mounting
- Low-profile design that sits flush under most detector heads
- Separate listing available for the isolator version YBN-R/3(SCI)
On larger projects the YBN-R/3 is ordered in volume so every detector on the loop uses the same base type. This simplifies stock, reduces the chance of mixing isolator and non-isolator bases, and speeds up first-fix addressing.
We keep popular Hochiki ESP bases and heads in stock and can source any missing codes or special finishes quickly. Call 07471 454785 for current availability, bulk pricing or help matching a full system bill of quantities.
View the product here: Hochiki YBN-R/3 ESP sensor base. Browse the full range at the Hochiki collection.