SSR-40 DA 40A Heavy-Duty Solid State Relay FOTEK
Industrial-grade SSR-40 DA heavy-duty single-phase Solid State Relay (SSR) engineered for high-current contactless AC load switching in demanding industrial heating, plastics processing, packaging machinery, and three-phase motor control installations. Operated by a low-voltage 3–32V DC logic signal, it smoothly and safely switches AC operating loads from 24V to 380V AC up to 40 Amps continuous load current. Featuring optical isolation between the input logic and high-voltage AC load terminals, zero-cross switching technology to suppress inrush surge currents and electromagnetic interference, and a fully solid-state construction, it delivers spark-free, completely silent switching and high durability across millions of duty cycles.
Parameter | Specification |
|---|---|
Product Type | High-Current Single-Phase Solid State Relay (SSR) |
Model | SSR-40 DA |
Control Voltage (Input) | 3V to 32V DC |
Control Current | 3 mA to 25 mA DC |
Load Voltage (Output) | 24V to 380V AC (50/60 Hz) |
Rated Load Current | 40 Amps |
Switching Type | Zero-Cross Detection / Switching |
On-State Voltage Drop | ≤ 1.5V AC |
Off-State Leakage Current | ≤ 3 mA |
Turn-On / Turn-Off Time | ≤ 10 ms |
Dielectric Strength | ≥ 2500V AC (Input to Output / Base) |
Insulation Resistance | 500 MΩ at 500V DC |
Operating Temperature | -20°C to +80°C |
Cooling Requirement | External Heat Sink mandatory (For loads > 10A; forced air cooling recommended above 20A) |
Indication | Red LED Control Input Status Indicator |
Mounting Type | Panel / Heat Sink Mount |
Compliance Standards | CE, RoHS Compliant |
Ssaoco Dammam
- Started from: Jul 10, 2025
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