Siemens 7KM9300-0AE02-0AA0 — PROFINET Module Specs & Buying Guide

By Abdullah Zahid
12 min read
Siemens 7KM9300-0AE02-0AA0 Switched Ethernet PROFINET V3 plug-in expansion module for PAC power meters

Siemens 7KM9300-0AE02-0AA0 Switched Ethernet PROFINET V3 Expansion Module — Full Specifications and Selection Guide

If you are specifying PROFINET connectivity for a Siemens SENTRON power monitoring installation, the 7KM9300-0AE02-0AA0 is the direct-mount answer to a question engineers encounter constantly: how do you get real-time power quality data from a PAC meter onto an industrial PROFINET network without adding an external gateway to the panel? This plug-in Switched Ethernet PROFINET V3 Expansion Module inserts directly into compatible PAC3220, PAC4200, PAC4220, 3VA COM100, and 3VA COM800 devices, adding a 2-port integrated Ethernet switch with full PROFINET V3 support, Media Redundancy Protocol, and 500V AC galvanic isolation — all in an 18mm-wide, 59g module that draws power from the base meter itself.

If you have already confirmed this is the right part, check current pricing and availability at LeadTime.ca — ships worldwide.

Who Should Buy the 7KM9300-0AE02-0AA0 — and Who Shouldn't

This module is the correct choice when all of the following are true for your project:

  • Your base meter is one of: PAC3220, PAC4200, PAC4220, 3VA COM100, or 3VA COM800 — these are the only verified compatible devices
  • PROFINET V3 is your facility's specified industrial protocol and your PLC or SCADA infrastructure is already on PROFINET
  • Your network operates at 100 Mbps — this module does not support gigabit speeds, and gigabit upstream infrastructure will downgrade at the module port
  • Your operating environment stays within -25°C to 55°C and the meter installation location meets IP20 minimum (enclosed cabinet)
  • You have STEP 7 V16 or later available for commissioning — this is a hard software requirement, not optional

If your meter model is not on that compatibility list, if your facility runs EtherCAT or Modbus TCP as the primary protocol, or if you need a standalone protocol converter that is independent of the meter hardware, this module is not the right fit — you will need an external PROFINET gateway or a different base meter variant.

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What the 7KM9300-0AE02-0AA0 Actually Does in a Live System

The 7KM9300-0AE02-0AA0 is classified as a communication and networking module within the SENTRON 7KM PAC Expansion Modules and Accessories family. It is not a standalone device and cannot operate without a compatible base meter — that distinction matters when sizing and specifying a panel. The module plugs directly into the meter's expansion slot, derives its 19.2–28.8V DC supply from the meter, and immediately presents itself on the PROFINET network as a discoverable IO device the moment cabling and commissioning are complete.

Its core function is bridging: power quality measurement data collected by the base PAC meter — voltage, current, frequency, harmonics, demand — is made available to PLCs, SCADA systems, and building management controllers over PROFINET V3 at 100 Mbps. The two integrated RJ45 ports form a built-in Ethernet switch, so the module can participate in linear daisy-chain topologies without adding an external switch port at each meter location. Media Redundancy Protocol support means the module can be looped into a redundant ring topology, with automatic failover if a cable or port fails.

The 500V AC galvanic isolation between the power monitoring circuit and the PROFINET network side is not a marketing footnote — it is a functional safety requirement when the meter is monitoring medium-voltage or high-current distribution panels where voltage transients could otherwise travel into PLC or IT network infrastructure. The module's theoretical MTBF of 196.31 years, derived from component-level failure analysis, reflects a design intended for continuous unattended operation in industrial environments.

Typical System Architecture for PAC PROFINET Integration

The 7KM9300-0AE02-0AA0 sits at the field device layer of the PROFINET hierarchy, translating metering data upward to the controller layer without requiring any intermediate hardware. Here is where it fits in a typical deployment:

  • PLC or SCADA server (PROFINET IO controller) sits at the top of the chain, polling power quality data and executing control logic or alarming
  • Managed industrial Ethernet switch connects PLC to field devices via structured PROFINET cabling (100 Mbps backbone)
  • Compatible PAC meter (PAC3220, PAC4200, PAC4220) or 3VA COM device is mounted in the power distribution panel or switchgear cabinet
  • 7KM9300-0AE02-0AA0 is inserted into the meter's plug-in slot — two RJ45 ports connect upward to the switch and optionally daisy-chain to the next meter in the line
  • MRP ring topology (when configured) closes the loop back to the PROFINET controller, providing redundant path and sub-200ms failover if any segment fails

Industries and Applications Where This Module Gets Specified

Manufacturing plants with PLC-based production control are the most common deployment environment. Engineers on these sites need power quality metrics — voltage sag events, harmonic distortion, demand peaks — fed directly into the PLC so that automated load shedding or protective relay actions can execute within the control cycle without manual data collection. The 7KM9300-0AE02-0AA0 delivers that data over the same PROFINET infrastructure already used for machine I/O.

Food and beverage and chemical processing facilities specify this module when energy cost allocation by production line is required. Power data from each distribution panel flows over PROFINET to the plant historian or ERP gateway, enabling accurate per-line energy accounting that manual meter reading cannot support at scale.

Automotive production and supplier facilities use it for predictive maintenance integration — correlating power signature anomalies from motor-driven equipment with vibration or thermal data to build degradation models that prevent unplanned downtime.

Critical infrastructure applications — data centers, water treatment, hospital facility management — rely on the module's MRP redundancy and galvanic isolation to maintain continuous power data visibility on networks where a dropped connection or a transient from the distribution side could otherwise compromise control system integrity.

Application Typical Deployment
Manufacturing plant energy monitoring PAC4200 meters on main distribution panels, data fed to SCADA via PROFINET ring
Production line power cost allocation PAC3220 at each sub-panel, PROFINET to plant historian for ERP integration
Automated demand response PAC4220 with module feeding PLC that triggers load shedding on voltage/frequency threshold
Predictive maintenance system Power signature data correlated with machine vibration data in condition monitoring platform
Data center UPS and panel monitoring 3VA COM800 devices networked via PROFINET for real-time UPS and distribution visibility
Microgrid and backup power coordination Multiple 3VA COM100 devices on PROFINET ring enabling coordinated utility/generator switching

Purchase-Decision Specifications and Protocol Support

Specification Value
Network Protocol PROFINET V3 — 100 Mbps
Physical Ports 2x RJ45 sockets with integrated Ethernet switch
Media Redundancy Protocol MRP supported
Galvanic Isolation 500V AC maximum insulation voltage
Supply Voltage 19.2–28.8V DC (from base meter)
Operating Temperature -25°C to 55°C
Protection Class IP20
Dimensions (H x W x D) 90mm x 18mm x 73mm
Weight 59g
Software Requirement STEP 7 V16 or later

Full technical specifications are available on the product page at LeadTime.ca.

The module also supports TCP/IP for base networking, SNMP for network management, LLDP for link-layer device discovery, autonegotiation, and autocrossover. PROFINET IRT (Isochronous Real-Time) mode is available for deterministic sub-millisecond data delivery — a capability that allows production PLCs with 10–50 millisecond cycle times to respond to power anomalies automatically. The GSDML V2.3 device description file is used during STEP 7 commissioning for device configuration.

7KM9300-0AE02-0AA0 vs. External Gateway: Which Approach Fits Your Project?

Factor 7KM9300-0AE02-0AA0 (Plug-in Module) External Protocol Gateway
Installation footprint 18mm wide, mounts directly on meter Separate DIN rail device, additional panel space
Power supply Derived from base meter (no separate supply) Requires dedicated 24V DC supply
Protocol support PROFINET V3 only Often multiprotocol (varies by gateway model)
Network speed 100 Mbps Varies — some support gigabit
Redundancy MRP built-in Depends on gateway model
Galvanic isolation 500V AC — integrated Varies by product; may require separate isolator
Meter compatibility PAC3220, PAC4200, PAC4220, 3VA COM100, 3VA COM800 only Broader — works with serial or Modbus output meters
Commissioning software STEP 7 V16 or later required Varies by vendor

If your meter is already one of the five compatible PAC or 3VA COM devices and your facility network runs PROFINET, the 7KM9300-0AE02-0AA0 is the more efficient and cost-effective path — no extra DIN rail space, no separate power supply, and isolation already built in. Check current availability at LeadTime.ca.

Expert Verdict: Honest Assessment and Procurement Reality

The 7KM9300-0AE02-0AA0 does one thing and does it well: it puts PROFINET V3 connectivity on a compatible Siemens PAC meter without requiring any external hardware. For engineers who have already standardized on PROFINET and are deploying PAC3220, PAC4200, PAC4220, 3VA COM100, or 3VA COM800 meters, this is a clean, compact solution. The integrated 2-port switch, MRP redundancy, and 500V AC isolation are not entry-level features — they are production-grade capabilities that would cost more to replicate with external hardware. The theoretical MTBF of 196.31 years and V0 flame-retardant housing reflect a module designed for continuous unattended industrial service, not periodic-use environments.

Where the module has real limits: it is single-protocol. If your facility runs EtherCAT or Modbus TCP as the primary industrial protocol, or if you need gigabit speeds on the device link, this module does not serve those requirements. It also cannot be repurposed if you later replace the base meter with a model outside the compatibility list. The IP20 protection rating means it requires a properly enclosed cabinet — outdoor or wash-down environments are out of scope. Engineers who prefer a gateway approach for easier field replacement or protocol flexibility should source accordingly.

On the procurement side, the 7KM9300-0AE02-0AA0 is an active product with confirmed lifecycle status as of February 2026. Stock lead times through authorized distributors typically run 2–6 weeks depending on region and order volume. The EAN code 4001869565873 enables cross-region sourcing lookups if you are coordinating procurement across multiple facilities. If this matches your system requirements, view current stock and pricing at LeadTime.ca.

For volume pricing or to confirm lead time before committing to a build, contact the LeadTime.ca team directly — we ship worldwide.

Wiring and Physical Installation Overview

  • The module plugs into the expansion slot on the base meter and derives power from the meter's 19.2–28.8V DC supply — no separate power wiring is required at the module itself
  • Two RJ45 female sockets accept standard CAT5e or CAT6 industrial Ethernet cable; the integrated switch allows daisy-chaining to a downstream PROFINET device or connecting directly to an upstream managed switch
  • The module occupies an 18mm width on the meter face — confirm physical clearance before installation, particularly in congested panel layouts
  • Cable runs should remain under 100m per PROFINET standard; route Ethernet cables away from VFDs, high-voltage bus bars, and other EMI sources to avoid intermittent connectivity faults
  • If MRP ring redundancy is required, the second RJ45 port closes the ring back to the PROFINET controller or upstream switch — configure the ring topology and MRP parameters in STEP 7 V16 or later before going live

Compatible Base Meters and Expansion Context

The 7KM9300-0AE02-0AA0 is a meter-dependent expansion accessory within the SENTRON 7KM PAC Expansion Modules and Accessories family. Compatibility is specific and verified for the following base devices only:

  • Siemens 7KM PAC3220 — power meter, plug-in slot, verified compatible
  • Siemens 7KM PAC4200 — power meter, plug-in slot, verified compatible
  • Siemens 7KM PAC4220 — power meter, plug-in slot, verified compatible
  • Siemens 3VA COM100 — monitoring device, plug-in slot, verified compatible
  • Siemens 3VA COM800 — monitoring device, plug-in slot, verified compatible

Older PAC generation meters are not listed as compatible and should not be assumed to support plug-in expansion modules. Third-party meters are not compatible — this module communicates via the internal meter bus, not a generic external interface. If you are unsure whether your specific meter revision supports this module, verify the exact model number from the nameplate against the compatibility list before ordering.

Wrong-Part Prevention Checklist Before You Order

Before submitting a purchase order for the 7KM9300-0AE02-0AA0, work through every item on this checklist — each one represents a real failure mode that results in a returned module or a stalled installation:

  1. Verify your PAC meter model matches compatibility list: PAC3220, PAC4200, PAC4220, 3VA COM100, or 3VA COM800 only
  2. Confirm PROFINET V3 is specified in your system requirements; this module does not support EtherCAT, Modbus TCP, or other industrial protocols
  3. Confirm physical space available on your meter for an 18mm-wide, 90mm-tall plug-in module
  4. Check that your network infrastructure supports 100 Mbps; gigabit networks will downgrade to this speed at the module
  5. Verify your supply voltage to the base meter is within 19.2V to 28.8V DC range
  6. Confirm that STEP 7 V16 or later software is available for device configuration and commissioning

If any item on this checklist raises a question before you commit to the order, contact the LeadTime.ca team — we can help verify compatibility and confirm current availability before you place the order.

Frequently Asked Questions

Can the 7KM9300-0AE02-0AA0 operate without a base PAC meter connected?

No. The module is an expansion accessory that derives both power and operational context from the base meter. It cannot function as a standalone PROFINET gateway and cannot be powered directly from a separate 24V DC cabinet supply. If you need a standalone PROFINET interface device, you will need a different product category entirely.

Does this module support Modbus TCP or EtherCAT in addition to PROFINET?

No. The 7KM9300-0AE02-0AA0 supports PROFINET V3 as its single industrial protocol. It also supports TCP/IP, SNMP, and LLDP as base networking functions, but it does not support EtherCAT, Modbus TCP, or any other competing industrial fieldbus protocol. If your facility requires multiprotocol support, an external standalone gateway is the appropriate solution.

What happens if I connect this module to a gigabit Ethernet switch?

The module's integrated switch operates at 100 Mbps. When connected to a gigabit upstream switch, the port will autonegotiate down to 100 Mbps — the gigabit infrastructure will function normally, but data throughput at the module link will be limited to 100 Mbps. This is typically not a bottleneck for power metering data, but it is a factor to note in high-density network designs.

What software version is required to commission this module, and is it a strict requirement?

STEP 7 V16 or later is required for device discovery, name assignment, IP configuration, and MRP ring setup. This is a hard requirement — earlier versions of STEP 7 may not recognize the GSDML V2.3 device description file used by this module. Confirm your engineering workstation's software version before installation to avoid commissioning delays.

Is the 7KM9300-0AE02-0AA0 suitable for outdoor panel installations?

No. The module carries an IP20 protection rating, which means it is suitable only for clean, enclosed control cabinets where it is protected from dust, moisture, and physical contact. Outdoor enclosures require the cabinet itself to provide the environmental protection — the module's own rating does not permit direct exposure to weather or wash-down conditions.

What does the MRP redundancy feature actually protect against in practice?

Media Redundancy Protocol creates a dual-path ring topology so that if any cable segment or module port fails, traffic automatically reroutes over the backup path. The MRP failover time is within 200 milliseconds, which means power monitoring data continues to flow to the PLC or SCADA system with minimal interruption even during a cable fault or switch port failure — a meaningful protection for facilities where continuous power visibility is operationally critical.

Why Order From LeadTime.ca

  • LeadTime.ca ships the 7KM9300-0AE02-0AA0 and other SENTRON PAC expansion accessories worldwide — not limited to any single region
  • Hard-to-source industrial automation modules are a core specialty; if stock is tight, the team can advise on lead time and sourcing options before you commit
  • Volume pricing is available for multi-unit orders — contact the team directly for project quantities
  • Fast response on quote requests for procurement teams working to tight build schedules

At-a-Glance Summary

  • Model: 7KM9300-0AE02-0AA0 — Switched Ethernet PROFINET V3 Expansion Module, Plug-in
  • Protocol: PROFINET V3 at 100 Mbps with IRT (Isochronous Real-Time) support
  • Ports: 2x RJ45 with integrated Ethernet switch and MRP redundancy
  • Isolation: 500V AC galvanic isolation between power monitoring and network infrastructure
  • Compatible meters: PAC3220, PAC4200, PAC4220, 3VA COM100, 3VA COM800 — no other devices
  • Dimensions: 90mm x 18mm x 73mm, 59g — plug-in, no external fasteners or separate power supply
  • Operating temperature: -25°C to 55°C; storage to -25°C to 70°C; IP20 protection
  • Software: STEP 7 V16 or later required for commissioning; GSDML V2.3 device description
  • MTBF: 196.31 years theoretical — designed for continuous industrial operation
  • Product status: Active as of February 2026; EAN 4001869565873 for cross-region sourcing