Digital Power Distribution & Switching Module for Vehicle, Camper, and Boat
The PSU Switching Unit 9012-8 ADV is a digital switching module with integrated electronic fusing. It replaces traditional relays, fuses, and power distribution blocks with a single, freely programmable unit – featuring 8 inputs and 8 outputs, a total current of 90 amperes, and up to 25 A per channel (adjustable in 5 A increments). This allows you to dim and switch lighting and consumers, and directly control motors, pumps, and valves – via classic buttons, digital or analog signals, or the display. Ideal for sophisticated onboard electrical systems in RVs, campers, vehicles, off-road, special, and marine vehicles.
What the PSU Replaces
Instead of many individual relays, blade fuses, and distribution blocks, one device handles the complete power distribution and protection of your onboard electrical system. This saves space, wiring, and installation time – and makes your system software-adaptable, instead of having to swap out hardware.
Functions at a Glance
- Electronic fusing per output – no additional fuses needed
- Relay functions: flashing, dimming, and timer control
- Individual battery protection per output – either time or voltage controlled
- Rule-based logic functions for intelligent switching sequences
- Motor, valve, and pump control via the integrated H-bridge (e.g., electric steps)
- Master light and panic function for maximum control and safety
- Individual programming of all inputs and outputs
Power & Protection
Each output is digitally fused and can handle up to 25 A per channel; the current limit is flexibly adjustable in 5 A increments. This allows you to precisely match each circuit to its consumer – without changing fuses.
Operation & Expansion
The outputs can be controlled via various signal types: classic switches, digital signals, or analog input signals – freely configurable and automatically synchronized. Multiple PSU units can be operated in series or parallel to flexibly expand the system.
Areas of Application
- RV & Camper: dim lighting, centrally switch and protect cool boxes, pumps, and consumers
- Boat & Yacht: robust onboard power distribution for demanding marine applications
- Vehicle, Off-road & Special Vehicles: directly control motors, valves, and steps
Example Configuration
| Output | Standard 1 | Individual |
|---|---|---|
| Output 1 | Dimming / 10 A | – |
| Output 2 | Dimming / 10 A | – |
| Output 3 | Dimming / 10 A | – |
| Output 4 | Dimming / 10 A | – |
| Output 5 | Reading lamp On/Off / 10 A | – |
| Output 6 | Cool box On/Off / 15 A | – |
| Output 7 | Multiplus On/Off | – |
| Output 8 | Continuous plus / 5 A | – |
The inputs are always assigned to the corresponding output (Input 1 = Output 1 …).
Technical Data
| Feature | Value |
|---|---|
| Inputs/Outputs | 8 / 8 |
| Total Current | 90 A (continuous) |
| Current per Channel | up to 25 A, adjustable in 5 A increments |
| Protection | electronic, per output |
| Control | buttons, digital & analog signals, display |
| Special Functions | dimming, flashing, timer, H-bridge, logic rules, battery protection |
| Expandable | multiple units in series/parallel |
| Operating Voltage | 12 / 24 V (please complete/verify) |
| Application | Vehicle, Camper, Off-road, Marine, Special Vehicle |
| Article Number | 700901280 |
Frequently Asked Questions
What is the PSU Switching Unit 9012-8? A digital switching module with electronic fusing that replaces relays, fuses, and distribution blocks in one device – with 8 inputs and 8 outputs.
How much current does the PSU provide? 90 A total current, up to 25 A per channel, limitable in 5 A increments.
Do I still need separate fuses? No. Each output is electronically fused; additional fusing is not required.
Can I control motors, pumps, or valves? Yes, they can be directly controlled via the integrated H-bridge.
Can the system be expanded? Yes, multiple PSU units can be operated in series or parallel.
⚠️Safety data sheet can be found under Downloads!
Downloads
Deutsche Downloads
FAQ
Yes, this is possible. For this, the required fuse size per circuit must be specified when ordering the switch panel.
Yes, before each switchboard, a main fuse must be integrated into the supply line to the switchboard near the battery.
Yes, all common sensors used in the marine and automotive sectors can be connected.
