The SSR-3 DA4840 is a 3-phase solid state relay designed to efficiently switch AC loads up to 40A using a DC control signal. It ensures silent, fast switching and long operational life, making it ideal for automation and industrial applications.
Model: SSR-3 DA4840
Control Voltage (Input): 4–32V DC
Load Voltage (Output): 48–480V AC (Three-phase)
Load Current: Up to 40 Amps
Switch Type: Zero-crossing switching
Control Type: DC to AC (3-phase)
Isolation: Opto-isolated input/output for enhanced safety
Indicator: Built-in LED for input status
Mounting: Panel mounting
Terminals: Screw terminals for secure connections
Cooling: Requires external heat sink for high loads
Supports three-phase load control
High-speed, contactless switching
Quiet operation with no arcing or mechanical wear
Long service life under continuous use
Built-in input indicator for operational monitoring
Safe and stable with opto-isolation
Compact design suitable for control panels
Industrial motor starters
Packaging and labeling machinery
Plastic molding machines
HVAC and refrigeration equipment
Process heating elements
Factory automation systems
AC-powered conveyor systems
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