Select adequate heat sink (see thermal derating curves).
♦
Be sure to use a thermal pad or thermal compound (0.006-0.008 in layer thickness recommended) SSR and the selected heat sink.
♦
SSR housing mounting holes have a diameter of 0.341in (8.66mm). Two screws are needed to mount the SSR onto a heat sink (See Fig 1). Mounting screws
♦
Before
applying full torque tighten down both screws until they contact the baseplate. Then, tighten them to 20 in-lb (2.2 Nm) min.
♦
For
optimal thermal performance heat sink fins should be oriented vertically to promote natural convection airflow.
are sold separately as HK8 and are suitable for all Crydom heat sinks. Otherwise, recommended screw size is 8-32 (socket) using an allen wrench (9/64 in) for the
installation. Choose screw length considering mounting surface hole depth and SSR baseplate thickness of 0.125 in (3.2 mm).
Control Relays
■
Mounting on Panel
♦
Locate the panel section on which the SSR will be mounted. Panel mount surface must provide adequate heat sinking capability,
uncoated, clean, flat (0.004 in/in recommended) and preferably aluminum.
Mounting screws are sold separately as HK8. Otherwise, recommended screw size is 8-32 (socket) using allen wrench (9/64 in) forthe
installation. Choose screw length considering the mounting surface and that the SSR baseplate thickness is 0.125 in (3.2 mm).
♦
Be
sure to use a thermal pad or thermal compound (0.006-0.008 in layer thickness recommended) between the SSR and the panel.
♦
SSR
housing mounting slots have a diameter of 0.341 in (8.66 mm). Two screws are needed (not included) to mount the SSR onto a panel.
THE
R
PAD MAL
♦
Before
applying full torque tighten down both screws until they contact the baseplate. Then, tighten them to 20 in-lb (2.2 Nm) min.
■
Wire input and output as shown in the Wiring Diagram. For recommended wire sizes and terminal torques see TABLE 1
■
Select operation mode using the parameter selector switch See TABLE 2
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