Beefy SSR 40VA Solid State Relay 24-380V AC 40A, 500K Input, 1/4W, Heat Sink Included, Potentiometer And Knob, Single-Phase Control For DIY Projects, Heavy-Duty Power Regulator With Easy Wiring

High‑current 40A SSR for 24-380V AC control
✔️ Single-unit SSR, 40A output, 24-380 VAC, heatsink and pot knob

This solid-state relay (SSR-40VA) switches AC loads up to 40 A and is designed for single-phase control in DIY projects and heavy-duty power regulation. With a heat sink included, it helps manage heat during longer operation. The device ships with a 470 kΩ potentiometer and knob for external control.

✅ Model: SSR-40VA solid state relay
✅ Output voltage range: 24-380 VAC
✅ Output current rating: 40 A
✅ Input resistance/power: 500KΩ / 2 W
✅ Heat sink included; mounting thread diameter approx 0.5 cm (0.19")
✅ Includes 470KΩ potentiometer and knob for external control
✅ External potentiometer control; single-phase operation

💡 What is a 40A solid state relay with external potentiometer best used for in DIY projects?

Handy for precise, adjustable control of AC loads in hobbyist and light industrial setups. - adjustable AC power for heaters and motors in DIY projects
- clean, silent switching for automated systems
- easy field tuning via external potentiometer✝️