






⚡ Power your projects with silent strength and speed!
The HiLetgo SSR-40DA is a robust solid state relay designed for high-current (40A) single-phase AC loads, controlled via low-voltage DC input (3-32V). Featuring an alloy heat sink for efficient thermal management, it offers ultra-fast switching (<10ms), silent operation without sparks, and exceptional resistance to dust, moisture, and corrosion—ideal for professional automation and control systems.
| Connector Type | Screw |
| Contact Material | Copper |
| Contact Type | Normally Open |
| Current Rating | 60 Amps |
| Mounting Type | Screw Mount |
| Brand | HiLetgo |
| Operation Mode | Automatic |
| Coil Voltage | 32 Volts (DC) |
| Contact Current Rating | 40 Amps |
| Maximum Switching Current | 40 Amps |
| Maximum Switching Voltage | 250 Volts |
| Minimum Switching Voltage | 3 Volts (DC) |
| Number of Terminals | 3 |
| Manufacturer | HiLetgo |
| Part Number | 3-01-1247-40A |
| Item Weight | 7 ounces |
| Package Dimensions | 4.57 x 3.54 x 1.18 inches |
| Item model number | 3-01-1247-40A |
| Is Discontinued By Manufacturer | No |
| Size | SSR-40DA |
| Material | FR4 |
| Measurement System | Imperial, Metric |
| Batteries Included? | No |
| Batteries Required? | No |
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