The Siemens 7KM9300-0AM00-0AA0 is a SENTRON 7KM PAC RS485 expansion module designed to add serial communication capability to compatible 7KM PAC3220, PAC4220 and 3VA COM100 / COM800 devices. It uses a plug-in design, allowing the module to be installed directly into the compatible measuring or communication device. Siemens currently lists the article as an active product in the SENTRON 7KM PAC expansion-module family.
The module is suitable for industrial applications where electrical measurement data needs to be transferred to a PLC, SCADA, HMI or centralized energy-monitoring system through an RS485 communication network.
The 7KM9300-0AM00-0AA0 is an accessory module rather than a standalone power meter. Its primary purpose is to extend the communication capability of compatible Siemens SENTRON devices.
Siemens identifies the supported equipment as:
7KM PAC3220
7KM PAC4220
3VA COM100
3VA COM800
This makes the module useful when an existing compatible Siemens measuring device needs to be connected to a higher-level communication or energy-management system.
The module provides an RS485 communication interface for transferring measurement and device data.
The Siemens data sheet identifies the supported communication protocols as SEAbus / MODBUS, which can be selected as applicable. The documented transmission rate range is 4.8 kbit/s to 38.4 kbit/s.
This communication interface allows compatible measurement devices to exchange data with industrial automation and monitoring systems.
A major use of the 7KM9300-0AM00-0AA0 is integration of supported SENTRON devices into Modbus-based monitoring networks.
Depending on the connected host device and system configuration, the RS485 interface can be used for:
PLC communication
SCADA systems
HMI systems
Energy-management systems
Building-management systems
Centralized power monitoring
Industrial data acquisition
The module therefore helps connect local electrical measurements to a centralized digital monitoring architecture.
The module uses a plug-in construction, allowing it to be installed directly into the compatible Siemens device.
This design helps simplify:
Communication expansion
Module replacement
Device servicing
Retrofit applications
System upgrades
Because it is a dedicated accessory module, compatibility with the host device must be verified before installation.
The module is specifically designed for the Siemens SENTRON 7KM PAC ecosystem.
Its documented compatibility includes the PAC3220 and PAC4220 measuring devices as well as 3VA COM100 and COM800 communication components.
This makes the module useful for customers who already have compatible Siemens monitoring equipment and need RS485 connectivity.
Siemens specifies a maximum insulation voltage of 500 V AC for the module's galvanic isolation.
Galvanic isolation helps separate communication circuitry from other electrical potentials in the connected system and is an important characteristic for industrial communication applications.
The Siemens data sheet specifies approximate dimensions of:
Height: 90 mm
Width: 18 mm
Depth: 73 mm
The net weight is approximately 74 g.
The compact format allows the communication expansion module to be integrated into the supported Siemens devices without requiring a separate external communication enclosure.
The RS485 module uses a screw-terminal electrical connection. Siemens identifies the connection method as a screw terminal and the module as a pluggable device.
This arrangement is suitable for standard industrial RS485 wiring practices.
The 7KM9300-0AM00-0AA0 can be used in applications such as:
Industrial energy monitoring
Power-distribution monitoring
PCC panels
MCC panels
Factory automation
Electrical switchboards
Building energy management
Feeder monitoring
SCADA communication
Centralized power monitoring
The final application depends on the connected Siemens host device and communication-system design.
When installed with a compatible SENTRON measuring device, the module can form part of an energy-management architecture.
A typical system can be arranged as:
Electrical System → SENTRON PAC Meter → 7KM9300 RS485 Module → RS485 Network → PLC / SCADA / EMS
This allows electrical measurement information from compatible Siemens devices to be collected by a central monitoring system.
The 7KM9300-0AM00-0AA0 can be useful when an existing compatible Siemens installation needs communication expansion.
Instead of replacing the complete measuring device, a compatible expansion-module approach can provide an additional communication interface.
This can be useful for:
Existing panel upgrades
Energy-monitoring retrofits
SCADA integration
Remote measurement collection
Automation-system modernization
Compatibility and supported firmware/device versions should be confirmed before retrofit.
Siemens also offers dedicated communication expansion modules such as the 7KM9300-0AB01-0AA0, which is a PROFIBUS DP expansion module for the same general family of supported devices.
The 7KM9300-0AM00-0AA0 is specifically the RS485 module supporting SEAbus/MODBUS communication, so the communication network requirement should be considered before selecting the module.
The 7KM9300-0AM00-0AA0 is not a generic external RS485 converter.
It is a dedicated Siemens plug-in expansion module designed for specific SENTRON PAC and 3VA communication products.
Therefore, it should only be selected for the compatible Siemens host devices listed by Siemens.
The 7KM9300-0AM00-0AA0 can be used when an existing compatible Siemens installation requires an RS485 communication expansion or replacement module.
Before ordering, verify:
Exact article number
Host device model
PAC3220 / PAC4220 / COM100 / COM800 compatibility
Required communication protocol
Existing wiring
Module installation arrangement
Using the correct Siemens communication module helps avoid compatibility issues during system integration.
The Siemens 7KM9300-0AM00-0AA0 is relevant for:
Electrical panel builders
Energy-monitoring system integrators
Industrial buyers
Electrical contractors
SCADA integrators
Automation engineers
OEMs
Maintenance departments
Power-management professionals
Electrical product dealers
For SB Smart, this product is positioned as a Siemens SENTRON communication expansion module for RS485-based energy and power monitoring systems.
Siemens SENTRON 7KM PAC expansion module
Article number 7KM9300-0AM00-0AA0
RS485 communication module
Plug-in construction
Compatible with 7KM PAC3220 / PAC4220
Compatible with 3VA COM100 / COM800
Supports SEAbus / MODBUS
Communication speed up to 38.4 kbit/s
Galvanic isolation
Maximum insulation voltage 500 V AC
Screw-terminal connection
Compact 18 mm width
Suitable for industrial energy-monitoring and automation systems
RS485 communication expansion: Adds serial communication capability to compatible Siemens devices.
Modbus support: Enables integration with compatible industrial monitoring systems.
Plug-in installation: Simplifies mounting and replacement.
Wide compatibility: Designed for PAC3220, PAC4220, COM100 and COM800 applications.
Galvanic isolation: Supports reliable communication integration in industrial systems.
Compact construction: Fits within the supported Siemens device architecture.
Retrofit-friendly: Useful for upgrading existing compatible installations.
Centralized monitoring: Helps transfer measurement data to SCADA, PLC and energy-management systems.
The Siemens 7KM9300-0AM00-0AA0 is a dedicated RS485 plug-in expansion module for compatible SENTRON PAC and 3VA devices. It supports SEAbus/MODBUS communication, providing a practical way to integrate compatible Siemens measuring equipment into industrial monitoring and energy-management systems.
It is suitable for customers looking to buy or source Siemens 7KM9300 RS485 expansion modules for power-monitoring, SCADA, PLC and energy-management applications in India.
For SB Smart, this product is best presented as a Siemens SENTRON RS485 communication expansion module for industrial power and energy monitoring.
SB Smart supplies Siemens SENTRON communication modules and industrial electrical products across Faridabad, Gurgaon/Gurugram, Delhi NCR, Haryana, Noida, Punjab, Mumbai and other major Indian cities.
Major delivery locations include:
Faridabad
Delhi
Gurgaon/Gurugram
Delhi NCR
Noida
Greater Noida
Haryana
Punjab
Mumbai
Pune
Ahmedabad
Bengaluru
Hyderabad
Chennai
Kolkata
Jaipur
Chandigarh
Lucknow
Indore
Surat
Vadodara
Nagpur
Coimbatore
And other major cities across India
The 7KM9300-0AM00-0AA0 is a Siemens SENTRON RS485 plug-in expansion module for compatible PAC3220, PAC4220, 3VA COM100 and COM800 devices.
The Siemens data sheet identifies support for SEAbus / MODBUS communication over RS485.
No. It is an expansion module designed to be plugged into compatible Siemens measuring or communication devices.
The documented compatible devices include 7KM PAC3220, PAC4220, 3VA COM100 and COM800.
Yes. Siemens specifies the fastening method as pluggable.
It provides an RS485 serial communication interface.
The documented transfer-rate range is 4.8 kbit/s to 38.4 kbit/s.
Yes. Siemens specifies galvanic isolation with a maximum insulation voltage of 500 V AC.
The Siemens data sheet specifies approximately 18 mm width.
Yes. When installed with a compatible Siemens PAC or 3VA device, the RS485/Modbus interface can be used for integration with compatible SCADA, PLC, HMI and energy-management systems.
Yes, provided the existing host device is one of the Siemens-supported compatible models and the communication requirements match.
SB Smart supplies Siemens SENTRON communication modules and industrial electrical products in India for panel builders, automation integrators, energy-monitoring projects, maintenance teams and industrial buyers.
| Parameter | Details |
|---|---|
| Product Series | Siemens SENTRON 7KM PAC |
| Part Number | 7KM9300-0AM00-0AA0 |
| Type | RS485 Communication Module |
| Protocol | Modbus RTU / SEAbus |
| Compatibility | PAC3200 / PAC4200 / PAC3220 / 3VA COM |
| Mounting | Plug-in module |
| Function | Energy data communication |
| Application | SCADA / PLC monitoring |
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