M-BUS module APT-MBUS-NA-1 C, for residential water meters of type JS and JS90 SMART series DN15-20 Q3=1.6-6.4 m³/h 0945-300-053

The M-BUS module APT-MBUS-NA-1 C is a component designed for integrating JS and JS90 series SMART residential water meters with remote reading systems.

This is an accessory that does not operate independently—it functions only in conjunction with a compatible water meter. It transmits water consumption data from the meter via the M-Bus protocol to a central measurement installation, e.g., in a multi-family building or residential complex. It requires no additional power supply, drawing energy directly from the M-Bus bus.

Compatible with DN15–DN20 water meters with a maximum flow rate Q3=1.6–4.0 m³/h.

Designed to match the SMART series construction, ensuring simple installation without any meter modifications. The "C" version denotes a specific electrical and physical configuration optimized for compatibility with these particular models.

The enclosure has an IP65 protection rating—resistant to dust and injected water.

This means the module can be installed in areas exposed to moisture, such as stairwells, basements, or measurement cabinets, without risk of damage. No additional protection or enclosure is required.

It is not a spare part or service component—it is an installation component.

If the meter operates correctly but data is not being read, the issue may lie with this module. It should be checked first in the event of data transmission failure.

Compatible with M-Bus-based systems—no configuration required.

Once connected to the bus, it operates automatically. The installer does not need to set addresses or parameters—all are pre-programmed at the manufacturing stage.

It has no independent power source—it operates only when the bus is active.

This simplifies installation (no power cables required), but also means: if the bus is inactive, the module will not transmit data.