Description
Product Description
The KONGSBERG RCU501 is a Remote Controller Unit with Kongsberg article number 603439, used in compatible Kongsberg marine automation and control systems. Kongsberg documentation identifies the RCU501 as a controller within the K-Chief/K-Safe system architecture.
The RCU501 uses a 24 VDC power supply and communicates through an RBUS interface. Kongsberg specifications list two RJ45 connectors for the RBUS interface, RS485 multidrop physical layer, 2 Mb/s bit rate, and a maximum power consumption of 20 W.
The exact firmware and hardware revision should be checked before replacement. The 603439 part number appears with several revisions, including Rev. 1.1.1, Rev. 1.1.2, and later versions.
Product Parameters
| Parameter | Details |
|---|---|
| Brand | KONGSBERG |
| Model | RCU501 |
| Part Number | 603439 |
| Product Name | Remote Controller Unit |
| Module Type | Remote Controller / Process Controller |
| Application | Marine Automation & Control |
| System | K-Chief / K-Safe and compatible systems |
| Power Supply | 24 VDC (+30%, -25%) |
| Nominal Current | Approx. 0.8 A |
| Max. Power Consumption | 20 W |
| Communication | RBUS |
| RBUS Interface | 2 × RJ45 |
| Communication Speed | 2 Mb/s |
| Physical Layer | RS485 Multidrop |
| Max. RBUS Cable Length | 200 m between repeaters |
| Standards | IACS E10, IEC 60533, IEC 60945, IEC 61508, IEC 62061 |
| Revision | 1.1.1* |
| Condition | For parts or not working* |
*Revision and condition follow the supplied listing and should be confirmed against the actual unit. Kongsberg’s documentation confirms 603439 as the RCU501 part number.
Key Features
🔹 Kongsberg RCU501 Remote Controller Unit
🔹 Exact Kongsberg part number 603439
🔹 24 VDC industrial/marine power supply
🔹 Dual RJ45 RBUS communication interface
🔹 RS485 multidrop communication architecture
🔹 Designed for compatible Kongsberg marine automation systems
🔹 Applicable to maintenance, repair, and replacement requirements
🔹 Multiple firmware and hardware revisions available
Recommended KONGSBERG Models
- KONGSBERG RCU502 330924 Remote Controller Unit
- KONGSBERG RCU502i 421768 Remote Controller Unit
- KONGSBERG RCU602 383962 Remote Controller Unit
- KONGSBERG RMP400 603129 Remote Multipurpose I/O Module
- KONGSBERG RMP420 306712 Remote I/O Module
- KONGSBERG RDIOR420 306713 Remote I/O Module
- KONGSBERG RDI-32XE 333523 Remote Digital Input Module
- KONGSBERG RDO-16XE 329699 Remote Digital Output Module
- KONGSBERG RAI-16XE 329714 Remote Analog Input Module
- KONGSBERG RHUB200-5 603442 Communication Hub
Replacement Note: Match RCU501 / 603439, hardware revision, firmware version, connectors, and the original Kongsberg system configuration before installation. The RCU501 should not be substituted with an RCU502 or RCU502i solely because they share a similar controller role. Kongsberg documentation lists these as separate controller models with different article numbers.
