Bosch PRAESENSA - 3.4 Amplifier, 600 W 4-channel | PRA-AD604

34 en | Installation wiring PRAESENSA
2021.12.21 | V0.15b | F.01U.402.882
Underwriters Laboratories Listing Document (ULLD)
Bosch Security Systems B.V.
3.4 Amplifier, 600W 4-channel | PRA-AD604
3.4.1 Connections
Figure3.2: Rear view connections
Safety ground 48VDC input A‑B
48 V
Lifeline interface Loudspeaker output
A‑B (1‑4)
End-of-line device
Network port 1‑2
1
Field connections
Connection Field
wiring
Circuit class /
Ilimited IMax
/ minimum AWG Remarks
Safety ground - - -
48VDC input A‑B (1-3) NO* Class 1
not power limited
7A Wiring max.: 28-12AWG
Lifeline control/audio/supply
interface (1‑3, to amplifier 1‑3)
NO* Class 1
not power limited
-
Loudspeaker output A‑B (1‑4) YES Class 1
not power limited
14A Wiring Class A or Class B
Wiring max.: 28-12AWG
End-of-line device NO* Class 1
not power limited
14A Intended for connection
to a PRA‑EOL‑US in case
of ClassA wiring.
Network port 1‑2 NO* Class 2
power limited
Wiring ClassN
*Must stay within same room <20ft and within metal conduit.