Bosch NDA-U-PA0, Installation Manual

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For the correct connection of the incoming high voltage and the outgoing low voltage wires,
refer to this table:
No. Connector Pin 1 Pin 2 Pin 3 Pin 4 Pin 5 Pin 6
Ground Grounding screw
P101 120/230 VAC power in Line NC Neutral
P107 24 VAC power out Ground Heater
(24 VAC) Heater
(24 VAC)
Table 3.2: NDA-U-PA1 / NDA-U PA2 Surveillance cabinet connections
1. Route the high voltage 120/230 VAC wires through the grounded conduit fitting on the
left side of the unit. The unit with a transformer comes with a barrier that separates the
high voltage side on the left, from the low voltage side on the right.
2. Cut and trim the high voltage 120/230 VAC power and ground wires with sufficient slack
to reach their connector terminal in the box, but not so long as to be pinched by or to
obstruct closing the door.
3. Attach the supplied 3-pin power plug to the incoming high voltage power wires in the
unit. Refer to connector P101 in the table above and to the image below:
P101
1 2 3
LINE NC NEUT
Figure 3.1: Incoming 115/230 VAC power wires
4. Connect the ground wire to the grounding screw.
5. Connect three wires to the P107 Power Out connector to route the 24 VAC power supply
to the PA0 unit.
Connect the first wire to pin 5 (HN: Heater Neutral) connector.
Connect the second wire to pin 4 (HL: Heater Line) connector.
Connect the third wire to pin 3 (Ground) connector.
Refer to connector P107 in the table above and to the image below for these
connections:
P10
7
5 4 3 2 1
HTR
DOM
E
Figure 3.2: Outgoing 24 VAC power wires
Surveillance Cabinet Installing the Surveillance cabinet | en 15
Bosch Security Systems Installation manual 2017.09 | v1.0 | F.01U.250.239