Watlow Solid State Relay (SSR) User Manual

Solid state relay, Mounting and installation instructions

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0600-0028-0007 Rev D (2393)

Made in the U.S.A.

January 2011

Mounting and Installation

Instructions

Solid State Relay

PROCEDURE:

1. Surface must be flat and clean.

2. Use thermal pad or a thin coat

of Dow DC-340 thermal joint
compound between the relay
and heatsink.

3. Mount to heatsink or suitable

aluminum or copper plate.

4. Use Belleville (spring) washers

and tighten alternately until
spring is slightly deflected.
(approximately 6 inch pounds).

5. Heatsink should be mounted so

that fins are vertical.

6. Ambient temperature not to

exceed 122°F / 50°C when
mounted to suitable heatsink.

7. Do not mount SSR's on panels

that are painted, plastic, steel,
or stainless steel. These materi-
als will not remove the heat
generated by the SSR.

8. Torque 6-32 screws for signal

wires to 10 in-lbs.

9.Torque screws for power con-

nections to 20 in-lbs.

See the reverse side for typical

SSR wiring diagrams.

1241 Bundy Blvd., P.O. Box 5580, Winona, MN 55987-5580
Phone: 507-454-5300, Fax: 507-452-4507 www.watlow.com

Screw #8-32
99-1017

Washer
Belleville #8
99-3047

Solid State
Relay

Thermal Pad
0830-0574-0000

Typical
Heatsink

Ai

r F

low

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