Detector Relay Base Specification Sheet

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B312xL_DBL_LST_EN_0804.PDF • PAGE 1
ABuilding Safety. Building Security.
Detector Relay Base Series 300
B312RL/B312NL
Description
Specifi cations
The Detector Relay Base B312RL/B312NL with integra-
ted relay output is designed for the easy connection of
automatic detectors Series 300. Due to its robust multi-
wire screw terminals, the detectors can be wired with
ease, thus achieving a secure and durable connection.
The relay output is activated through the alarm acti-
vation of the inserted detector. In the Detector Relay
Base B312RL the relay output remains active until the
operating voltage is briefl y interrupted. In the Detector
Relay Base B312NL the detector and the relay output
are automatically reset a few seconds after detection
of the fi re alarm.
During construction work (or when the detector has
been removed) the detector line can be connected
through via an auxiliary contact, which is integrated into
the base. With that, the whole wiring of the detector
line can be examined without risking contamination of
the detectors. The contact is automatically opened by
installing the detector.
The detector base is designed for surface mounting in
dry rooms. A mechanical theft protection of the detec-
tor can optionally be activated at the detector base.
• Suitable for automatic detectors in
conventional technology
• Relay output with dry change-over
contact
• Connection to control panels with
12V operating voltage
• Test contact for examining the
detector line without detectors
• Mechanical theft protection can be
activated
Operating voltage 8.5 – 15VDC
Current consumption typ. 20µA (quiescent)
50mA (active)
Contact rating 1A at 30VDC
Ambient temperature -20°C to +70°C
Relative humidity 5 – 93% (no condensation)
Dimensions ø × H 127 × 29 (mm)
Colour cream
Weight 96g
Detector Relay Base B312RL
Order number 246101
Order name Detector Relay Base/Conv./300/SS B312RL
Detector Relay Base B312NL
Order number 246102
Order name Detector Relay Base/Conv./300/SS B312NL