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Electrical installation

Safety instructions

It is important to read and understand all safety and operating instructions before use. During installation, comply with all relevant national standards and directives.

Qualified electricians only

MultiNode LAN 4TE is an overvoltage category 3 device for fixed DIN-rail installation in a touch-protected or access-controlled environment. Operate only with a neutral conductor.

Installation must be carried out by a qualified electrician. Observe MOCoPA and applicable standards, e.g., German Energy Act § 49 and DIN VDE 0105-100 in Germany.

Protect the mains circuit with a circuit breaker in accordance with DIN VDE 100.

Electrical shock or fire

  • Disconnect the mains supply before mounting and secure it against reconnection.
  • Follow all safety regulations to prevent electric shock or arcing.
  • Use an appropriate measuring instrument to verify the absence of hazardous voltage before starting work.

Electrical shock or fire from incorrect conductor cross-section or installation

Match the conductor cross-section to the circuit breaker. Ensure correct wiring of the power connection.

  • Do not open the device; no user-serviceable parts inside.
  • Operate only in dry environments.
  • Do not insert objects into device openings.
  • Keep ventilation slots clear.
  • Protect from direct sunlight.
  • Prevent overheating.

Replace the device if damaged, for example:

  • liquid ingress or foreign objects inside,
  • exposure to rain or water,
  • failure to operate despite correct installation,
  • visible housing damage.

Instructions for electrical installation

  1. Switch off the mains supply.

  2. Open the junction box or charging station intended for installation.

    Electrical shock

    Ensure absence of hazardous voltage.

  3. Mount the MultiNode LAN 4TE on the DIN-rail with mains terminal clamps facing upward. The housing label must remain legible.

  4. Connect conductors as marked on the terminals. Use 1.5 mm2 – 6 mm2 cross-section depending on circuit breaker rating.

    • Single-phase: Connect neutral and L1 to N and L1.
    • Three-phase: Connect neutral and L1, L2, L3 to N, L1, L2, L3. The device is powered via N and L1.
    • PE (optional): Connect protective earth to the PE terminal.

    Link quality

    For best link quality, connect all three phases, neutral, and PE.

  5. Connect the Ethernet port of MultiNode LAN 4TE to the Ethernet interface of the application device, e.g., gateway, switch, or charging station.

    Device documentation

    Record the MAC address, serial number, and installation location, e.g., floor number or parking lot number, of each node. Both MAC address and serial number are on the housing label. Provide this documentation to the network administrator for provisioning and tracing issues.

  6. A MultiNode network requires at least two nodes. Repeat steps 2–5 for each additional node.

  7. After all devices are installed, restore mains power and close all junction boxes or charging stations.

    Installation complete

    Electrical installation is finished. If nodes are not yet provisioned, continue with configuration in chapter 6 MultiNode LAN web interface.