LIEBHERR 8SE1-8N1 8-Channel Digital Input Marine Control Module
LIEBHERR 8SE1-8N1 is an original 8-channel digital input signal board for Liebherr marine crane, offshore winch and vessel hydraulic machinery automation control systems, widely used on offshore supply vessels, cargo ships, dredgers and port mobile harbor cranes. LIEBHERR 8SE1-8N1 collects digital limit switch, pressure switch, safety interlock and operator control lever signals, transmits discrete on/off status to the central PLC main controller, acting as an indispensable spare part to maintain reliable safety interlock and equipment status monitoring for Liebherr marine lifting machinery. Marine & port automation technicians rely on LIEBHERR 8SE1-8N1 to deliver stable signal acquisition under severe vibration, salt fog, oil mist and high humidity marine working environments.
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Core Procurement & Technical Specifications
- Brand: LIEBHERR Maritime & Cranes
- Model: 8SE1-8N1 (8-channel DI module)
- Availability: In stock, limited original factory surplus inventory
- Delivery Time: Within 3 working days after payment confirmation
- Warranty: 12-month full functional warranty
- Condition: Original brand new surplus, unused, complete factory sealed packaging
- Input/Output: 8 isolated digital input channels; accepts 24VDC proximity switch & mechanical limit signal input; no output channels
- Operating Temperature: -15°C ~ +70°C, fully compliant with IEC 60945 marine shock & vibration standards
- Dimensions/Weight: Standard rack plug-in PCB module with integrated metal EMI shielding frame
- Communication: Proprietary internal rack bus compatible with Liebherr marine crane control system CPU racks
- PCB Protection: Conformal coated circuit board to resist salt fog, moisture and hydraulic oil mist corrosion
- Anti-Vibration Grade: Marine certified shock resistance for continuous 24/7 operation in ship engine rooms and crane control cabins
- Circuit Protection: Individual channel overvoltage, reverse polarity and short-circuit protection for all sensor inputs
- Power Supply: 24VDC standard marine control power supply, low power consumption design
- Matching Equipment: Fully compatible with Liebherr offshore crane, dredger winch and vessel hydraulic actuator control cabinets
Key Advantages
- Eight independent galvanically isolated digital input channels, eliminating cross-signal interference from heavy hydraulic pump and engine vibration
- Full native hardware compatibility with original Liebherr marine crane control racks, direct plug-and-play replacement without wiring modification
- Marine anti-corrosion coated PCB and shielded housing, long service life in salty, humid offshore and port crane working conditions
- Compact rack-mounted layout design, convenient quick disassembly and on-site maintenance replacement for automation cabinets
