Technical Specifications Protected Signal Type: Eddy current probe, RTD, accelerometer signals Channel Number: Multi independent protection channels Surge Discharge Capacity: Matched for industrial cabinet environment Operating Temperature: -40℃ ~ +70℃ Mounting: DIN rail installation Housing: Flame retardant plastic housing Isolation: Channel to ground isolation design
Functional Features Independent surge protection for each signal channel. Fast response to absorb transient high voltage surge pulse. Centralized screw terminals for signal wiring. Low insertion impact on original sensor measurement signal. Flame retardant shell suitable for industrial cabinet. Convenient replacement and maintenance on site.
Application Scenarios Surge protection for Bently rotating machinery sensor loops. Turbine and compressor vibration, displacement sensor protection. Power plant machinery protection cabinet signal protection. Petrochemical plant field sensor lightning surge protection. Critical equipment online condition monitoring system.
Structural Characteristics Flame retardant plastic casing with DIN rail locking buckle. Multi-group screw terminals for signal input and output. Internal surge suppression components welded on PCB. Channel marking printed on front surface. Quick-release structure for module replacement without tools.
Working Principle When transient high voltage surge appears on field signal line, the built-in surge suppression components quickly conduct and release surge energy to protective ground. Normal low-level measurement signals can pass through the terminal unit with negligible attenuation, ensuring normal sensor signal transmission while blocking dangerous high voltage from entering rack equipment.
Installation Requirements Mount unit on DIN rail inside control cabinet. Wire field sensor cable to input terminals, wire to rack side at output terminals. Use shielded twisted pair cables for all sensor circuits. Connect protective ground terminal to cabinet ground bus reliably. Keep signal cables away from high voltage equipment. Verify wiring sequence before powering on system.
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