The Omega SSRL240DC10 is a single-pole, normally open (SPST-NO) solid-state relay engineered for AC load switching in industrial control applications. Built on twin SCR (Silicon Controlled Rectifier) technology, it delivers zero-voltage switching to minimize electrical noise and electromagnetic interference. The relay accepts DC control signals between 3 VDC and 32 VDC, drawing typically 14 mA maximum input current. Its lack of moving parts ensures millions of switching cycles with no mechanical wear, making it ideal for high-cycle environments requiring extended service life.
Technical Specifications
• Load Voltage: 24 to 280 VAC, single-phase
• Load Current: 10 A maximum continuous
• Surge Capacity: 150 A (1-cycle), 30 A (1-second)
• Control Input: 3 to 32 VDC
• Input Current Draw: 14 mA typical (max)
• Switching Speed: 20 ms turn-on (AC), 30 ms turn-off (AC); 0.5 cycles (DC)
• Isolation: 4000 Vrms (input-to-output), 2500 Vrms (input/output-to-ground)
• Line Frequency: 47 to 63 Hz
• Operating Temperature: −20 to 80°C
• Storage Temperature: −40 to 80°C
• Leakage Current (Off-State): 0.1 mA maximum
– Key Features
• Zero-voltage switching minimizes transient noise
• Twin SCR architecture for enhanced reliability and overload tolerance
• Low input-to-output capacitance (8 pF max) reduces crosstalk
• Panel-mount design with screw terminals for load and control connections
• Galvanic isolation between control and load circuits
– Typical Applications
• Temperature controller interfaces for industrial heaters
• Resistance heater switching and load control
• AC power distribution in noise-sensitive facilities
• Multi-phase systems (via parallel or multi-unit configurations)
– Compatibility & Integration
The SSRL240DC10 integrates directly with temperature controllers accepting 3 to 32 VDC command signals. For three-phase applications, deploy two units in Delta configuration or three units in Wye configuration. Requires mounting on a finned heat sink or aluminum plate with 10 inch-pounds torque for mechanical fasteners to ensure effective thermal dissipation.
