Watlow Solid State Relay Installation guide

Watlow
Brand
Watlow
Model
Solid State Relay
Type
Installation guide
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
A
ir
F
lo
w
DC or AC Input Solid State Relay Wiring Diagram
H
eater
Limit Control
Contacts
(
If Required)
L2
L1
12
43
2
1
Semiconductor
Fuse
90-240VAC
AC Input
3-32VDC
DC Input
OR
(-)
(+)
DC Input, DC Output Solid State Relay Wiring Diagram
Heater
Limit Control
Contacts
(If Required)
1(–) (+)2
4(–) (+)3
11
Fuse
Open Collector
DC Input, 3-32VDC
External
DC Power
Supply
0-100 VDC
Install diode if
load is inductive
(-)
(+)
SSR-100-20A-DC1
3 Phase, 2 leg Solid State Relay Wiring Diagram
12
43
Limit Control
Contacts
(If Required)
L2
L3
L1
12
43
3 Phase
Heater
21
Semiconductor
Fuses
Control Input Signal
SSR Mounting and Installation Instructions
ç
1
WARNING:
Wiring must con-
form to National
Electric Code
(NEC) safety stan-
dards, as well as
locally applicable
codes. Failure to
do so could
result in personal
injury or death.
ç
2
WARNING:
Wiring examples
show L2 in
240VAC or
480VAC configu-
ration. In 120VAC
applications, L2 is
neutral and must
not be fused or
switched. Failure
to follow this
guideline could
result in personal
injury or death.
ç
ç
ç
çç
  • Page 1 1
  • Page 2 2

Watlow Solid State Relay Installation guide

Watlow
Brand
Watlow
Model
Solid State Relay
Type
Installation guide
Download PDF
report

Ask a question and I''ll find the answer in the document

Finding information in a document is now easier with AI

Related papers

Other documents