Bosch F220-B6R
Bosch F220-B6R
Out of stock; call for lead time
The Bosch F220-B6R is a four-wire smoke detector mounting base with a built-in relay output, used with four-wire (externally powered) Bosch smoke detector heads instead of the standard two-wire loop-powered arrangement. The onboard relay lets the base directly drive an auxiliary device, such as a duct damper or fan shutdown relay, whenever the connected detector head goes into alarm.
Key Features
- Four-wire detector mounting base
- Built-in relay output for auxiliary device control
- Compatible with externally-powered Bosch four-wire detector heads
Technical Specifications
- Wiring configuration: Four-wire
- Output: Relay (auxiliary control)

