Solid State Relay SSR-40DA-H 40A DC to AC Power Switch 90~480V | Industrial Grade Power Bank Circuit Controller

The Solid State Relay SSR-40DA-H is a high-performance industrial-grade DC to AC switching device designed for demanding power control applications. With a 40A load capacity and a wide operating voltage range (90–480V AC), this relay delivers reliable, efficient, and noiseless switching for power bank circuits, automation systems, and industrial control environments.

Unlike traditional electromechanical relays, the SSR-40DA-H provides fast response times, zero-cross switching, and long service life due to its contactless design. This ensures stable operation under heavy loads, reduced maintenance, and enhanced safety for both commercial and industrial use.

Key Features

• High Load Capacity – Supports up to 40A AC load current for robust power handling.

• Wide Voltage Range – Operates between 90V to 480V AC, suitable for diverse industrial applications.

• DC to AC Switching – Input controlled by DC signal for precise AC power switching.

• Zero-Cross Technology – Minimizes electrical noise and ensures smooth, efficient switching.

• Durable & Long-Lasting – Solid-state design eliminates mechanical wear, providing extended service life.

• Compact & Efficient – Slim design allows easy integration into control panels and circuits.

• Industrial Grade Reliability – Designed for continuous, stable operation in high-demand environments.

• Silent Operation – No moving parts, ensuring quiet and maintenance-free performance.

Technical Specifications

• Model: SSR-40DA-H

• Relay Type: Solid State Relay (DC to AC)

• Input Voltage (Control): 3–32V DC

• Output Voltage (Load): 90–480V AC

• Load Current: 40A

• Switching Method: Zero-Cross Trigger

• Isolation Resistance: ≥100MΩ / 500V DC

• Response Time: ≤10ms

• Operating Temperature: –30°C ~ +80°C

• Mounting Type: Panel Mount with Heat Sink (recommended for full load)

• Housing Material: Flame-Retardant Industrial Grade Plastic

• Certifications: CE, RoHS Compliant

Applications

• Industrial automation and control systems

• Power bank circuits and battery management systems

• CNC machinery and motor control

• HVAC and temperature regulation systems

• Lighting control and energy-saving solutions

• Home automation and smart power switching