Solid State Relay 24-380VAC 25A

A 25 A solid state relay that switches 24–380 V AC loads from a 3–32 V DC control signal with zero-crossing switching and complete optical isolation. Silent, fast, and wear-free, it's the professional choice for any AC load switching that cycles frequently or requires noise-free operation.

🔹 Key Applications

• PID temperature controller AC heater switching
• AC motor soft-start enabling
• Lighting control and dimming stages
• Industrial AC actuator switching
• High-cycle rate AC process control
• CNC machine spindle and coolant pump control

🔹 Why Choose This Module?

• 25 A / 380 V AC — handles most single-phase industrial loads
• Zero-crossing switching — no electrical noise on switch events
• Optical isolation — complete DC control / AC load separation
• Silent and spark-free — infinite electrical cycle life
• LED indicator — visual output status

🔹 Technical Specifications

• Control: 3 – 32 V DC
• Load: 24 – 380 V AC
• Current: 25 A
• Switching: Zero-crossing
• Isolation: Optical
• Indicator: LED

🔹 What's Included

1 × 25A Solid State Relay (24-380VAC)

🔹 Pro Tip

💡 Always use a heatsink — even at 95% efficiency, 25 A generates enough heat to destroy the SSR without thermal management. Apply thermal compound and mount to at least a 150 cm² aluminium plate. For inductive loads (motors), a snubber circuit (47 Ω + 0.1 µF in series) across the load terminals prevents voltage spikes.

⚠️ Note: Always ensure proper heat dissipation and correct voltage configuration before powering connected devices.