Technical data

14 en | Connection
Automatic Fire Detectors LSN improved
version
F.01U.003.449 | 7.2 | 2010.05 Product Information Bosch Sicherheitssysteme GmbH
5 Connection
5.1 Overview of Detector Bases
Detectors in the FAP-420/FAH-420 series are operated in one of the detector bases listed
below.
The detector bases are suitable for surface and flush mounting, and provide separate fixing
points for ceiling and flush mount back boxes. They also fit all common bore patterns.
The bases are made from white ABS plastic (color similar to RAL 9010) and have a matte
surface finish.
The bases have screw terminals for connection of the detector and its accessories to the fire
panel. Contacts connected with the terminals guarantee a secure electrical connection when
installing the FAP-420/FAH-420 Detector Head. Cable diameters of up to 2.5 mm
2
can be
used.
The detector head can be secured against unauthorized removal with a variable lock.
MS 400
The MS 400 is the standard detector base. It has seven screw
terminals.
MSF 400
The MSF 400 Detector Base with Damp Room Seal is available
for use of the detector in a humid environment.
The integrated TPE seal protects the MSF 400 Detector Base
reliably against the penetration of condensed water.
FAA-MSR 420
The FAA-420-R is a detector base with a change-over contact
relay (type C).
The FAA-MSR 420 Detector Base with Relay can only be used in
connection with the Local Security Network improved version
(FPA-5000 Modular Fire Panel).
MSC 420
The MSC 420 Additional Base was designed specially for
surface-mounted cable feed via cable protection conduits and
has two opposing pre-cut entry points of 20 mm diameter and
two additional opposing and prepared entry points for
diameters up to 28 mm.
The additional base has a diameter of 120 mm and a height of
36.7 mm. To protect against condensed water penetration, a
seal is placed on the bottom of the MSC 420.