5
FAULT
ON
Mechanical
construction
The annunciator unit is composed of standard-
ized 100 mm x 160 mm "Euro-card" plug-in
modules. An annunciator unit type SACO 16D1
consists of the following modules:
- a power supply module type SPGU 240A1 or
SPGU 48B2
- an Input/Output module type SWIM 2A1
- an alarm annunciator module type SWPM
3A1
The enclosure of the annunciator module con-
sists of an extruded aluminum profile to which
the connection module SWCM 3A1 has been
fixed to form the mounting case. The connec-
tion module comprises the plug-in PCB con-
nectors and the screw terminals to facilitate all
external connections. The connection module
also comprises a 48 V dc power unit for voltage
supply to the field contact circuits.
The annunciator unit is intended for flush
mounting. The depth behind the panel can be
reduced by 40, 80 or 120 mm by using a raising
frame.
The cast aluminum alloy mounting frame is
stove-finished with a beige semi gloss carbamide
resin paint and provided with a rubber gasket
which provides a degree of protection by enclo-
sure to IP 54 between the mounting case and the
panel .
The mounting case is also provided with a
glass-clear UV-stabilized polycarbonate lid with
a sealable locking screw. The lid also has an IP 54
classification when closed with the finger screw.
The screw terminal blocks to facilitate all input and
output wire connections are located on the back of
the mounting case. One or two max. 2.5 mm
2
conductors can be connected to each terminal.
No terminal lugs are needed. A connection
diagram is shown on one of the sides of the case.
Power supply module SPGU 240A1 or SPGU 48B2
Input/output module SWIM 2A1
Connection module
SWCM 3A1
Alarm annunciator
module SWPM 3A1
Mounting case
Front panel
Lid
Fig. 2. Plug-in modules of the annunciator unit SACO 16D1.
