omega.com
Servicing North America:
U.S.A. :
Omega Engineering, Inc.
Headquarters:
Toll-Free: 1-800-826-6342 (USA & Canada only)
Customer Service: 1-800-622-2378 (USA & Canada only)
Engineering Service: 1-800-872-9436 (USA & Canada only)
Tel: (203) 359-1660 Fax: (203) 359-7700
e-mail:
For Other Locations Visit omega.com/worldwide
Operating
I
nstructions of Solid
S
tate
R
elay
SSR530 and SSRL530 Series
1. Manufacturer has made great effort on product quality and reliability, but improper
selection or use may result in irreversible damage of internal power semiconductor
devices in solid state relay. In addition, due to the voltage fluctuation of the power grid
(usually + + + 10%) and the differences in inductance and capacitance, a certain safety
factor must be taken into account when selecting the type. For example, the long-term
working current of electric heating should not exceed 60% of the rated SSR current, and
the rated current of the motor should not exceed 1/7 of ssr current.
2. When the long-term working current is greater than 5A, it must be equipped with the
supporting radiator. Radiator slab temperature shall not exceed 80
℃
.
If the ambient temperature is too high, air cooling must be adopted to accelerate air flow for
better cooling effect.
3. In order to ensure the closely contact of solid state relay with the radiator during the
installation process and to achieve more ideal cooling effect, our company equipped with
special thermal conductive film or special thermal conductive silicone according to the
different level of current. When installing, please parallel the heat conduction film to the
solid state relay, between the bottom plate of the solid state relay and the radiator, and
install the mounting screws.
4. When the module is fastened to the surface of the radiator, it adopts M3, M4, M5 screws and
spring washers, and is fastened with 4-6nm torque. After 3 hours, it is fastened with the
same torque. Recommended tightening torque 0.8- 1 Nm for the controlling end M3 screw,
1.9 -2.1 Nm for loading end M5 screw.
5. In order to prevent the breakdown of solid state relay caused by short circuit, overload of
voltage or current, we strongly recommended installing relevant fast acting fuse (our
company can provide supporting services).
For the inductive load, it is also necessary to install the pressure-sensitive resistance and
RC absorption circuit at the solid-state output end. For the dc solid-state relay, if it is the
inductive load, it is necessary to install the relay diode protection.
6. Solid state relays must operate with sufficient voltage and current values that do not exceed
the nominal trigger voltage and current value. For example, the control end is "3-32vdc", that
