Technical Specifications Rated current: 10 A DC; rated voltage: 32 V DC maximum; attenuation: 40 dB typical at 1 MHz, 50 dB typical at 10 MHz; operating temperature: -40 °C to +85 °C; protections: transient voltage clamping, reverse polarity; enclosure: IP20; DIN rail mounting.
Functional Features Conducted EMI suppression; transient voltage clamping; differential and common mode filtering; reverse polarity protection; low insertion loss.
Application Scenarios DC power supply input filtering for engine control systems, industrial control cabinets, battery-powered control systems, high-noise industrial environments.
Performance Parameters Insertion loss: < 0.5 V DC at 10 A; common mode attenuation: 40–60 dB across 150 kHz–30 MHz; differential attenuation: 30–50 dB across 100 kHz–10 MHz; transient clamping: < 40 V for 2 kV 1.2/50 µs pulse.
Material Composition Metal shielded enclosure, common mode and differential mode inductors, ceramic and film capacitors, transient suppression diodes, screw terminals.
Structural Characteristics Compact DIN rail mount module; front terminal block for input and output; metal enclosure for shielding; standard mounting footprint.
Working Principle The unit uses a network of common mode chokes, differential inductors and capacitors to attenuate conducted electromagnetic interference on the DC input line, while clamping transient voltage spikes to protect downstream power supplies and control electronics.
Installation Requirements Mount on DIN rail upstream of the power supply module; connect input supply and output to power supply; torque terminals to 0.8–1.0 N·m; implement system grounding.
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