Technical data

No. PCB
Marking
Description/Function of
Connection / Terminal
Type of Connection/
Terminal
13 FS2 Fuse 2 - Primary protection --
14 FS1 Fuse 1 - MIC camera protection --
15 FS3 Fuse 3 - Heater protection 1 --
16 FS5 Fuse 5 - Heater protection 2 --
17 -- Earth termination post Ring terminal
Installation Instructions (Power Supply)
Danger!
ELECTRICAL SHOCK HAZARD
To reduce the risk of electrical shock, disconnect power before opening or working on any
power supply unit. Power must be disconnected before replacing any fuse in the MIC PSU.
Power supply units have power supplied whenever the power cord is inserted into the power
source.
MIC PSUs have a separate internal shield covering the power cable input terminal block
(HD1). Only suitably qualified persons should remove this shield and connect the mains power
cable. The shield MUST be re-installed and fully secured before connecting the power.
The power supply cable shall have conductors of a maximum size of 12 AWG.
Branch circuit protection incorporating a 15 A, 2-pole, listed circuit breaker or branch rated
fuses are required. A readily accessible 2-pole disconnect device with a contact separation of
at least 3mm must be incorporated externally to the equipment.
!
Warning!
To meet UL standards and ratings, all external wires for installation applications must be
routed through a permanently earthed metal conduit.
!
Caution!
Except for the Earth Link, heater links, and applicable fuses, the MIC PSUs have no user-
adjustable parts. MIC cameras have no user-serviceable parts.
!
Caution!
Bosch recommends using an uninterruptible power supply (UPS) in connection with a MIC
camera/PSU installation.
Notice!
To maintain the IP rating of the power supply enclosure, install only listed or recognized
conduit hubs or fittings with the same environmental rating as the enclosure in compliance
with the installation instruction of the hub or fitting.
Notice!
Refer to the MIC Series Power Supply Installation Manual included with the PSU for full details
on installing a MIC Series PSU and connecting to a MIC Camera.
11.6
MIC440 Explosion-protected Camera Install the MIC Power Supply Unit (PSU) | en 33
Bosch Security Systems, Inc. Operation Manual 2013.11 | 8.1 |