Electrical components in the DHOLLANDIA system
The high-current path of DHOLLANDIA electrics is carried by main relays, solenoid switches and power contactors that energise the pump motor and keep current draw on short routes. Fuses and fuse holders in the control box protect the individual circuits against overload and short circuits. Typical wear shows on burnt contact surfaces of the main relays and on corroded terminal points – both become noticeable through voltage drops, sluggish motor response or sporadic shut-offs during operation.
The operating side consists of a hand-cable switch, a radio remote and an optional foot switch, which pass the control pulses on to the logic. Limit switches and position sensors detect platform position and folding state and release the next movement step. The repair-friendly contact switch architecture of DHOLLANDIA electrics allows individual switches and relays to be replaced selectively, without having to swap out entire control boards. The wiring connects all components via plug connectors and junction boxes – during maintenance, it pays off to inspect contacts, seals and strain reliefs, since moisture and vibration are the most common causes of failures.
The DHOLLANDIA electrical range comprises several hundred individual parts across all capacity classes and model years. Key component groups include:
- Main relays, solenoid switches and power relays
- Limit switches, microswitches and position sensors
- Hand-cable switches, radio remotes and foot switches
- Fuses, terminals, cables and junction boxes
In addition, we supply wiring harnesses, plugs and connectors, fuses, control elements, warning lights and numerous further components for diagnostics, repair and modernisation.