
OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747
FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com
Issue A.5
11/09
Page 1 of 12
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Solid-State Relays
Panel Mount Package—VAC Input / VAC Output
OSSRA0007A thru OSSRA0012A
Description:
The OSSR Solid State Relay series are electronic controlled switches, they contain no moving parts.
When voltage is applied to the input, a Light Emitting Diode or LED illuminates a Photosensor which
controls the internal output circuit. The output circuit is utilized to drive high current loads. The input
and output are optically isolated. The OSSR series incorporates a zero crossing circuit which minimizes
current and noise surges due to resistive and inductive loads. Optek provides three different electrical
configurations of the OSSR series: DC input – AC output, AC input – AC output and DC input – DC
output. These configurations meet most industry applications.
The OSSRA000XA family comes in a standard panel mount package, commonly known as a “hockey
puck” package. The package offers a robust molded epoxy body with exceptional thermal dissipation
capability for a long reliable operational life.
The input circuit consists of a bridge rectifier circuit which features an AC range from 50 to 250 ADC.
The output consists of a Double Triac circuit featuring load current ratings from 10 to 40 Amps and
maximum load voltages from 250 to 480VAC with normally open output.
Features:
Molded Epoxy package
Zero crossing circuit
High Input/output Optical Isolation 4k Vrms
Superior heat sink package
Includes LED indicator
Fast switching time
Non-contact switch
Approval Agency:
UL Certification No: E321810
Protective plastic covers are included with shipment of OSSRA series.
Installation of the protection cover is necessary.
Applications:
Temperature controlled systems
Office equipment
Motor controls
Industrial Equipment
Light controls systems
Heater control
Appliances
HVAC temperature control
Plastic molding
Packaging industry
Food processing temperature
controls
Moisture
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