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to the calculated one (Rth).
Installation notes
The device must be protected by a high speed
fuse (accessory).
Applications with power solid state relays must
also have a switch to isolate the power line.
Protect the solid state relay against overhea-
ting by using a heatsink (accessory).
The heatsink must be sized according to room
temperature and load current (see technical
data).
Heatsink installation procedure:
spread 1 gram of thermoconductive silicone
paste (we recommend DOW CORNING 340)
on the dissipative metal surfaces of the modu-
le.
The surfaces must be clean and the thermo-
conductive paste must not contain any impuri-
ties. As alternative it is also possible to use
the slide SIL-GQ available as accessory.
Alternately tighten the two fastening screws
until reaching a torque of 0.4...0.6 Nm.
ELECTRICAL CONNECTIONS
Connection of 3-phase load and 2-phase control
Heatsink (accessory)
Connection of 3-phase load with closed/open triangle or star
Wait 5 minutes for any excess paste to run off.
Alternately tighten the two fastening screws
until reaching a torque of 1.2...1.4 Nm.
Attention
The contact surface of the heatsink module
may have a maximum planarity error of 0.1
mm and maximum roughness of 0.02 mm.
The fastening holes on the heatsink must be
threaded and countersunk.
The heatsink must be grounded.
Connection of single-phase load
Digital
output
on/off
Relay
output
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