KeContact M20 Load Management Controller
Intelligent Load Management for Large and Small Charging Parks
Smart charging management for multiple charging points
The KeContact M20 Load Management Controller continuously monitors a building’s primary power demand. Any available capacity beyond this demand is automatically allocated to the charging stations and, consequently, to the electric vehicles. This ensures optimal use of the existing electrical infrastructure, while new buildings can be designed with a lower grid connection capacity. The result is reduced resource consumption, lower investment costs, and greater sustainability.
With the KeContact M20, your charging infrastructure grows with your needs. From compact installations to charging parks with up to 200 wallboxes, it offers maximum flexibility and scalability. Whether in parking garages, underground car parks, hotels, or corporate fleet applications, the KeContact M20 delivers outstanding efficiency, reliable operation, and maximum safety.
KeContact M20 Benefits at a Glance
Static and dynamic load management for the optimal and safe operation of up to 200 wallboxes
- Phase-correct load management to prevent phase imbalance
- Supports up to 15 charging clusters (e.g. sub-distribution boards in multi-level parking garages) with individually configurable load limits
- Full connectivity via OCPP over LAN or 4G/LTE
- Centralized configuration of the charging infrastructure through a web interface
- Compatible with KeContact P40, P40 Pro, P30 x-series (as client), and P30 c-series
For up to 200 wallboxes
All on a Single Grid Connection Point
For easy
access
Control via Web Interface and OCPP
For wireless data exchange
Communication via 4G/LTE with external antenna
For optimal load output
Maximum Utilisation of the Building's Electrical Infrastructure
Flexibly Scalable from 10 to 200 Wallboxes
The KeContact M20 Load Management Controller is available in four variants: Mini, Small, Medium, and Large. This ensures the right solution for both smaller installations and large-scale charging parks. Each variant is tailored to the specific requirements of different charging infrastructures—from residential multi-dwelling buildings and SMEs to hotels, corporate fleets, large parking garages, and shopping centres.
Your charging infrastructure grows with your needs—efficiently, dynamically, and with phase-correct load management.
| Variants: | Controllable Wallboxes: | Typical Application Area: |
| KeContact M20 Mini | up to 10 | Small commercial or residential installations (e.g. SMEs, multi-dwelling residential buildings) |
| KeContact M20 Small | up to 20 | Small commercial or private installations (e.g. office locations, small businesses) |
| KeContact M20 Medium | up to 40 | Medium-Sized Charging Parks with Moderate Charging Demand |
| KeContact M20 Large | up to 200 | Large Charging Parks, Hotel Complexes, Corporate Fleets, Underground Car Parks, and Shopping Centres |
Greater Efficiency, Enhanced Safety, Lower Costs
To prevent overloading a building’s electrical infrastructure, it is essential to monitor and control individual electrical loads. This helps reliably prevent power outages caused by overloads. This principle is known as load management.
Load Management with a Central Controller
KeContact M20
The KeContact M20 Load Management Controller is the ideal solution for charging infrastructures with a large number of charging points—from parking garages and underground car parks to hotels and corporate car parks. It enables dynamic, phase-correct load management, ensuring maximum efficiency and safety for the building’s electrical infrastructure.
Thanks to charging clusters, up to 15 groups of charging stations can be configured—for example, by sub-distribution board or building section—with individually configurable load limits. This ensures optimal use of the available electrical capacity.
Key Benefits at a Glance:
- Scalable to support up to 200 charging points (P30 x-series, P30 c-series, P40, and P40 Pro—including mixed installations)
- Dynamic load management via an external electricity meter or OCPP backend
- Centralised management of the charging infrastructure, RFID cards, and user permissions through a web interface
- Seamless integration with backend systems via OCPP (LAN or 4G with integrated LTE modem)
- Offline capability: load management remains fully operational even if the network connection is interrupted
- Manufactured carbon-neutrally for greater sustainability and cost efficiency
Load Management with the KeContact P30 x-series as Master
The KeContact P30 x-series is the ideal solution for small-scale charging infrastructures, such as customer or company car parks. Acting as the master wallbox, it controls up to 15 KeContact P30 c-series wallboxes while also functioning as a charging point itself. This creates a simple, cost-effective solution that is particularly well suited to small and medium-sized enterprises (SMEs) and multi-dwelling residential buildings.
Key Benefits at a Glance:
- Scalable to up to 16 wallboxes in a single installation (1 × KeContact P30 x-series as master + up to 15 × KeContact P30 c-series)
- Simple installation – no additional hardware required (except, if necessary, a LAN switch)
- Cost-effective thanks to lower overall installation costs
- OCPP connectivity for integration with backend systems
- Dynamic load management with an external electricity meter (e.g. for monitoring the building’s grid connection)
- Master wallbox also functions as a charging point
The KeContact P30 x-series provides a smart entry-level solution for intelligent load management—simple, flexible, and reliable.
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