SCHNEIDER ACE919CC Communication Module Product Information

Model: ACE919CC
Brand: SCHNEIDER ELECTRIC
Product Type: RS485 / RS485 Communication Converter
Series: Sepam Communication Accessories
Application: Communication interface expansion for Schneider Sepam protection relays and RS485 networks

Technical Specifications

• Product Type: RS485/RS485 Communication Converter
• Series: ACE919
• Model Type: ACE919CC (DC Powered Version)
• Main Function:
  • Connects RS485 master devices to Sepam RS485 communication networks
  • Provides network polarization and impedance matching
  • Provides distributed power supply for Sepam communication interfaces
• Communication Interface:
  • RS485 serial communication
  • 2-wire RS485 network
• Supported Protocols:
  • Modbus RTU
  • IEC 60870-5-103 (depending on connected Sepam interface)
• Power Supply:
  • 24…48 V DC ±20%
• Distributed Power Output:
  • 12 V DC or 24 V DC
  • Maximum 250 mA
• Maximum Connected Sepam Interfaces: Up to 12 units
• Transmission Delay: <100 ns
• Network Functions:
  • RS485 polarization
  • Line impedance matching
  • Electrical isolation
• Mounting: DIN rail mounting
• Weight: Approx. 0.28 kg
• Operating Temperature: -5…+55 °C
• Protection: 1 A time-delay fuse protection

Advantages & Features

• Reliable RS485 Communication
  Provides stable communication between control systems, supervisory computers, and Sepam protection devices.
• Network Signal Optimization
  Built-in polarization and impedance matching improve RS485 network stability and reduce communication errors.
• DC Power Supply Design
  ACE919CC supports 24–48 V DC power input, suitable for industrial control cabinets.
• Distributed Power Capability
  Supplies power to connected Sepam communication interfaces, reducing additional power wiring requirements.
• Electrical Isolation Protection
  Helps protect communication equipment from electrical interference and improves system reliability.
• Easy Installation
  DIN rail mounting design allows quick installation inside control panels.

Applications

• Schneider Sepam protection relay systems
• Electrical power distribution systems
• Substation automation systems
• Medium-voltage switchgear communication
• Industrial power monitoring systems
• Energy management systems
• SCADA communication networks
• RS485 industrial communication networks

Precautions

• Confirm compatibility with Schneider Sepam devices before installation.
• Ensure the DC supply voltage is within the specified range (24…48 V DC).
• Use correct RS485 wiring polarity and shielded cables.
• Configure communication parameters correctly.
• Check network termination and impedance matching settings.
• Avoid installation in areas with excessive moisture, dust, or strong electromagnetic interference.
• Installation and commissioning should be performed by qualified technicians.