The Kongsberg C4xe is a sophisticated marine generator control and monitoring unit designed for the autonomous management of shipboard power plants. As part of the K-Chief automation family, the C4xe provides integrated functions for engine safety, generator protection, and automated start/stop sequences. This module is engineered to meet the stringent requirements of classification societies, offering high reliability in harsh maritime environments. It excels in managing complex load-sharing tasks and synchronizing multiple generator sets to ensure stable power delivery for marine vessels and offshore platforms.
Technical Datasheet
Model Number: C4xe Product Series: Kongsberg Maritime Automation Dimensions: 144mm x 144mm x 95mm Weight: 0.95 kg Country of Origin: Norway Input Voltage: 18V – 32V DC Display: Integrated Backlit LCD for Status and Diagnostics Communication: Dual CAN-Bus for Redundant Control Networks Protection Class: IP20 (Rear) / IP54 (Front Panel) Operating Temperature: -25°C to +70°C
Application Fields
The C4xe module is the standard choice for marine power management systems (PMS), typically utilized in:
- Main diesel generator sets on merchant vessels.
- Emergency generator control systems.
- Dynamic Positioning (DP) vessels requiring high-reliability power grids.
- Shaft generator monitoring and control.
- Offshore drilling rigs and production platforms.
Product Instructions
- Mounting: The C4xe is designed for flush mounting in a control cabinet door or console. Ensure the front gasket is properly seated to maintain the IP54 protection rating against moisture.
- Redundancy: To utilize the module’s safety features, connect both CAN-A and CAN-B ports to the ship’s redundant automation network. This ensures continued monitoring even if one network line fails.
- I/O Calibration: Analog inputs for oil pressure, coolant temperature, and fuel levels must be configured in the software to match the specific sensor curves (PT100, 4-20mA, etc.) installed on the engine.
- Security: Access to the configuration menu should be password protected to prevent unauthorized changes to generator protection setpoints, such as overspeed or reverse power limits.
Q&A – Frequently Asked Questions
Q: Can the C4xe operate as a standalone unit? A: Yes, the C4xe can operate as an independent generator controller, but its full potential is realized when integrated into the Kongsberg K-Chief system for centralized power management.
Q: What happens if the module loses DC power? A: The module features non-volatile memory that retains all configuration settings and alarm logs. However, for safety, it is recommended to power the unit from a battery-backed uninterruptible power supply (UPS).
Q: Does the module support remote monitoring? A: Yes, when connected to the vessel’s LAN or satellite gateway through the K-Chief network, performance data and alarm history can be monitored from onshore offices.
Recommended Similar Models
- Kongsberg C2 (Compact Engine Control Unit)
- Kongsberg C3 (Advanced Engine Safety Module)
- Kongsberg K-Safe (Dedicated Safety Instrumented System)
- Kongsberg RIO-G2 (Remote I/O Module for Power Systems)
- Kongsberg MPC 32 (Multi-Purpose Controller for Marine Automation)


