Product Overview & Application Area
The GEMA MDC 400 Bundle Module + Heating Cartridge EEHPPV6 6.0 kW 400 V combines an MDC 400 heating module with a matching electric heating cartridge for central heating systems. The bundle is suitable for additional electric heat input into the heating circuit and supports existing primary heat generators in professionally installed systems.
Typical application areas include supplementary heating, post-heating, frost protection support, emergency heat support, and the use of surplus PV electricity for heat input into the heating circuit. The design must match the respective system, the minimum flow rate, and the available electrical connection capacity.
Technology & Equipment
The MDC 400 module forms the hydraulic base body for the heating circuit. It is designed for water or a suitable glycol mixture up to 50% concentration, features 50 mm polyurethane foam thermal insulation, and is connected to the heating circuit via female threads G 1 1/4 inch.
The electric heating cartridge EEHPPV6 operates at 6.0 kW at 3~ 400 V. It features 3-stage power selection, temperature control in the range of approx. 5 to 75 °C, and a safety temperature limiter against overheating.
Everyday Benefits
The bundle offers a clear combination of heating module and matching electric heating cartridge. This makes it suitable for operators who want to add electric supplementary heat to the heating circuit without having to assemble the module and heating cartridge separately.
The manual power staging of the heating cartridge supports adapted operation when the full rated power is not required continuously. Especially in the context of a photovoltaic system, the stepwise power selection can be helpful when utilizing available electrical energy.
System Integration & Compatibility
The MDC 400 module is integrated into the parallel heating circuit on the flow or return line of the main heat source. It is intended for open or closed central heating systems with appropriate safety devices.
For operation of the 6.0 kW version, a minimum flow rate of 343 l/h must be ensured. An additional circulation pump is required and must be sized to suit the system. The safety valve, electrical protection, and control connection must be properly taken into account.
Technical data at a glance
The following information refers to the specific bundle consisting of the MDC module and the matching electric heating cartridge.
| Base module | MDC 400 |
| Heating rod SKU | EEHPPV6 |
| Rated power | 6.0 kW |
| Power consumption | 6000 W |
| Voltage | 400 V |
| Phases | 3 phases |
| Frequency | 50 Hz |
| Current draw | 8.7 A |
| Connection type | 3~ 400 V three-phase connection |
| Heating cartridge connection | 1 1/2 inch |
| Installation length of heating cartridge | 520 mm |
| Unheated area | 100 mm |
| Temperature range of heating cartridge | approx. 5 to 75 °C |
| Safety temperature limiter | approx. 93 °C |
| Minimum flow rate | 5.72 l/min, equivalent to 343 l/h |
| Module connection heating circuit | Female thread G 1 1/4 inch |
| Heating cartridge connection module | Female thread G 1 1/2 inch |
| Medium | Water or suitable glycol mixture |
| Max. glycol content | 50 % |
| Insulation | 50 mm polyurethane foam |
| Max. operating pressure | 10 bar |
| Max. operating temperature module | 90 °C |
| Module length | 600 mm |
Assembly
The heating module is integrated into the parallel heating circuit on the flow or return line of the main heat source. Before switching on, the module and the system must be completely filled with water and vented.
Assembly, electrical connection, and testing are tasks for qualified professionals. The minimum flow rate of 343 l/h must be ensured; for this purpose, an additional circulation pump must be provided, which is operated together with the heating cartridge.
Notes
Dry running must be avoided, as it can cause damage to the heating element and lead to safety risks. The device may only be operated with suitable safety devices and a functioning safety valve.
The product information does not replace proper planning, heat load calculation, or electrical sizing. The safety valve, circulation pump, fuse protection, installation material, and control connection must be checked to match the system.
Scope of delivery
- MDC 400 heating module
- Electric heating cartridge EEHPPV6 / EJK maxi 6000 MR, 6.0 kW, 400 V
