This guide explains how to install the Zaptec Column safely and efficiently, following best practices and industry standards. 

• Zaptec Column - Documentation.
• ONEPOLE dredging foundation - Documentation 

Only qualified personnel should install, repair, or maintain this product. Always follow all local, regional, and national regulations.

Safety and compliance 

Always use double-insulated (Class II) cables and products when installing without an upstream RCCB.

The supplied connection kit is rated Class II, ensuring full compliance with current safety regulations (IEC 61851-1:2019, 8.3; HD 60364-4-41).

Using improper cables or non-Class II products without an RCCB is unsafe and not compliant. If you use basic insulation or non-Class II products, you must install an upstream RCCB or fix the insulation breach.

Included in the package

• Zaptec Column
• Front lid 
• Top lid 
• Charger lid (if no charging station is attached)
• Footplate* 
• Connection kit and connection box (supplied as separate accessories)
• Screw kit 

*Choose the footplate according to your foundation type (the illustration shows the 160 mm foundation footplate). 

How to install the column

1. Install the grounding connection

1. Insert a nut into the slot inside the column at your desired height.
2. Attach the grounding cable and tighten the bolt to ensure a solid electrical connection.

2. Attach the footplate 

1. Place the footplate on the bottom of the column, aligning all holes. 
2. Secure with the supplied M8x40 bolts (maximum 15 Nm torque). 
3. Double-check alignment with the foundation bolts. 

3. Mount the Zaptec Pro Backplate 

1. Position the backplate at the designated mounting points.
2. Attach using the supplied M5x12 screws (maximum 8Nm torque).

If no charging station is attached, install the charger lid.

4. Installing the connection kit and box 

1. Fit the connection box into the column, ensuring all cables are routed through the correct entry points.
2. Secure the box with the provided hardware.
3. Connect the supply cables to the terminals, following the wiring diagram for L1, L2, L3, N, and PE.
4. Check that all connections are tight and that insulation is intact.

5. Attach the top and front lids

1. Place the top lid and fasten with M8×12 bolts (maximum 8 Nm torque).
2. Attach the front lid and secure with M5×12 screws (maximum 8 Nm torque).

6. Final checks

• Inspect all connections and fasteners.
• Ensure the column is straight and secure.
• Confirm all covers are properly installed and sealed.
• Clean the exterior with a damp cloth. Never use high-pressure washers.

Updated 14 November 2025 09:24