220V DC SSR
A 220V DC Solid State Relay (SSR) is a high-speed electronic switch. It safely controls heavy high-voltage DC loads using total electrical isolation and no moving parts.
Key Specifications
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Load Voltage Range: 12 V to 220 V DC (Supports up to 220V continuous load)
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Control Input Voltage: 3 V to 32 V DC (Standard logic levels)
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Load Current Options: Available from 10 A up to 120 A (Depending on model variant)
- Insulation Resistance: 1000 MΩ / 500 V DC
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Operating Temperature Range: -20°C to +75°C (Requires an external heat sink for high current)
Key Features:
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DC-to-DC Power Switching: Specifically engineered to toggle a high-voltage DC power line using a tiny, low-voltage DC control signal.
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Wear-Free Semiconductor Build: Uses internal MOSFET or IGBT switching instead of physical contacts. This completely eliminates arcing, clicking noises, and mechanical wear.
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Optocoupler Isolation: Provides full optical isolation between your fragile input logic (like a PLC or Arduino) and the heavy 220V load, preventing dangerous back-voltage.
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Fast Response Times: Turns on and off in milliseconds. This enables high-frequency pulsing, which is impossible with slow, traditional mechanical contactors.
Where It’s Used:
Because it handles high-voltage DC smoothly and silently, you will find this relay inside:
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Industrial DC motor speed controllers and magnetic brakes
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High-power solar panel arrays and green energy storage banks
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Large DC-operated heating elements, ovens, and thermal chambers
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Heavy-duty solenoid valves, linear actuators, and electro-magnets
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