The SSR‑100DA is a robust, single-phase solid state relay perfect for heavy-duty switching tasks. It activates with a safe 3–32 V DC control signal and manages AC loads from 24 to 480 V, handling currents up to 100 A. The zero-cross switching reduces electrical noise and minimizes wear, while the LED indicator clearly shows activation. Its sturdy panel-mount design with impact resistance makes it ideal for industrial automation, CNC equipment, heating elements, motors, and more.
Technical Specifications
| Feature | Specification |
|---|---|
| Input (Control) | 3–32 V DC<br>Trigger current: ~12 mA<br>Operate voltage: ~2.8 V, Release: ~1.5 V |
| Output Load Voltage Range | 24–480 V AC (some variants: 24–380 V) |
| Maximum Load Current | 100 A AC |
| Leakage Current (Off-State) | ~2 mA |
| Voltage Drop (On-State) | ~1.5 V |
| Switching | Zero-cross type — reduces EMI and inrush currents |
| LED Indicator | Yes — shows relay activation |
| Dielectric Strength | ~4,000 V input-to-output isolation; ≥100 MΩ insulation @ 500 VDC |
| Response Time | Approx. 10 ms |
| Dimensions | ~57.4 × 44.8 × 28 mm; Weight: ~135 g |
What’s in the Box
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1 × SSR‑100DA Solid State Relay with screw terminals and removable protective cover.
Key Benefits
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High Current Handling (100 A) for demanding industrial or large-scale applications
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Silent & Durable — no mechanical wear or noise during operation
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Stable, Safe Switching — zero-cross detection minimizes electrical disturbances
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Visual Feedback via LED indicator
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Easy to Install — compact, panel-mount design with high isolation safety

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