Description
EMRI KSA11 Marine Steering Control Board
Product Overview
The EMRI KSA11 is a marine steering control board used within EMRI steering-control equipment, with available field references linking the board to the RCU10-440 steering control system. It should not be treated as a generic PLC CPU, analog I/O card, or standalone autopilot computer. The board is part of a vessel steering-control architecture where electronic control signals are used to manage steering machinery and associated hydraulic equipment. Field service documentation also describes KSA11 boards being installed and configured in RCU10-440 systems during steering-system troubleshooting and replacement work.
For procurement purposes, the EMRI KSA11 identification needs to be matched against the physical PCB marking rather than relying on the short model number alone. Available component records associate KSA11 with 3-2629-B-R1 and KSA01-R1, while another listing identifies the board as 43-2629-BKSA01. These references appear related, but they should not automatically be treated as interchangeable ordering numbers without checking the installed board and system documentation.
In actual marine service, this distinction matters. A steering-control PCB sits inside a safety-relevant vessel control chain. Replacing it is not simply a matter of installing a circuit board and applying power. The replacement must be checked against the steering-control cabinet, pump arrangement, feedback system, control mode, and vessel-specific setup. A field service report specifically describes replacing and setting up a KSA11 board before testing steering movement and multiple pump combinations.
The is therefore best approached as a legacy marine control-system replacement component. Its value is primarily in restoring an existing steering-control installation without redesigning the entire steering architecture. Exact electrical ratings, firmware information, connector assignments, and environmental specifications are not sufficiently documented in the public sources reviewed and should be confirmed from the original equipment documentation or the board nameplate before purchase.
Product Introduction
A failed steering-control PCB can leave an otherwise serviceable hydraulic steering installation unavailable. The belongs to the control layer of the EMRI marine steering architecture and is associated with the RCU10-440 system used in vessel steering applications.
For a legacy replacement, matching the board revision and cabinet architecture is more important than treating as a generic control PCB. The known 3-2629-B-R1 / KSA01-R1 markings provide useful identification points during a DCS-independent marine steering system repair.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | EMRI |
| Manufacturer / Brand | EMRI |
| Product Type | Marine steering control PCB |
| Application | Vessel steering control / autopilot-related steering system |
| Associated Control System | RCU10-440 |
| Known PCB Marking | 3-2629-B-R1 |
| Associated Marking | KSA01-R1 |
| Alternative Reference | 43-2629-BKSA01 reported in commercial component records |
| Installation | Installed inside the applicable EMRI steering-control cabinet |
| Firmware | Not reliably verified from public documentation |
| Operating Voltage | Not reliably verified for the standalone PCB |
| Communication Interface | Not reliably verified for the standalone PCB |
| Operating Temperature | Not reliably verified |
| Protection Rating | Not reliably verified |
| Weight | Approximately 1.26 kg reported for a / 3-2629-B-R1 assembly; verify against the actual board |
The 1.26 kg figure and the 3-2629-B-R1 / KSA01-R1 markings come from component records rather than an EMRI technical manual, so they should be regarded as identification information rather than a certified engineering specification.
EMRI–KSA11
Major Features / Practical Advantages
Marine Steering-System Application
The is specifically associated with marine steering control rather than conventional factory PLC architecture. Field reports connect it with EMRI RCU10-440 equipment and vessel steering systems using hydraulic steering pumps. This makes system-level identification essential when sourcing a replacement.
Supports Legacy Equipment Maintenance
For older vessels, the practical advantage of the is preservation of an existing steering-control architecture. Replacing the board can be considerably less disruptive than redesigning the complete steering-control cabinet, provided the replacement matches the original hardware revision and configuration.
Board-Level Replacement
The is supplied as a PCB/control-board component rather than as an entire RCU10-440 cabinet. That distinction is important when preparing a maintenance purchase order. A board replacement does not automatically include the cabinet, power hardware, steering feedback components, hydraulic equipment, or other control electronics.
Revision Identification Matters
Known markings include 3-2629-B-R1 and KSA01-R1. Photographs of the complete PCB, connectors, component layout, labels, and revision markings should be retained before ordering. Two boards that are both advertised as should not be assumed identical merely because the short model number matches.
Field-Service Configuration
A field service report describes the being installed and then set up before steering tests were performed. The same report records testing from hard port to hard starboard and checking operation with individual and combined steering pumps. This is a useful practical warning: replacement should be followed by functional steering checks rather than treated as a simple board swap.
No Unsupported Specification Claims
Public information does not establish a reliable standalone voltage, current consumption, processor specification, firmware version, communication protocol, or IP rating. Those values have intentionally been omitted here. A seller listing that supplies detailed electrical specifications without showing the original EMRI documentation should be treated cautiously.
Related Products
- — Associated steering-control cabinet/system referenced with installations.
- EMRI KSA01-R1 — Board marking associated with identification; verify interchangeability from the actual PCB.
- EMRI 3-2629-B-R1 — PCB identification associated with .
- EMRI 43-2629-BKSA01 — Alternative part reference reported for a steering control board.
- EMRI KSA12 — Related EMRI steering-control board encountered in field service; a field report describes KSA12 replacement during a hydraulic-lock fault investigation. It should not be substituted for without system documentation.
- EMRI SRS142 — Other EMRI marine control PCB; not a demonstrated replacement.
- EMRI 3-0774-2-B — EMRI feedback-unit PCB; functionally different from .
- EMRI 3-2632-B-R1 — Another EMRI PCB family member; do not assume functional interchangeability.
FAQ
What is the EMRI used for?
The is identified as a marine steering control board, associated with EMRI steering-control equipment and particularly the architecture. Field-service records document setup and testing as part of vessel steering repairs.
Is a PLC module?
No. It should not be categorized as a conventional PLC/DCS I/O module. It is a dedicated board within a marine steering-control system.
Is the same as 3-2629-B-R1?
Available component records associate with 3-2629-B-R1 and markings. However, the complete PCB marking should be checked before procurement.
Can I hot-swap this board?
Do not assume hot-swapping is supported. The is part of a vessel steering-control system, not a standard hot-pluggable PLC rack. Follow the vessel’s approved steering-system isolation procedure and the equipment documentation before removing the board.
Does the contain firmware?
The board is part of an electronic control system, but a reliable public source did not establish the exact firmware architecture or version for . Do not specify firmware v3.1 or another version simply because a similar control board uses it.
Can I replace with KSA12?
Not automatically. KSA12 appears in EMRI steering-system field service records, but its presence in the same general system does not prove electrical or functional interchangeability with .
What should be checked before ordering a replacement?
At minimum, compare:
- Complete PCB part number and revision.
- / KSA01 markings.
- Connector arrangement and physical layout.
- Existing cabinet identification.
- Vessel steering-system configuration.
- Feedback and hydraulic-pump arrangement.
- Original board photographs.
- Any available commissioning or setup parameters.
Is a used EMRI acceptable for a vessel repair?
It can be considered for legacy equipment, but condition alone is not enough. A used board should have documented inspection and functional testing appropriate to the steering system. Cosmetic similarity does not establish operational equivalence.
Procurement Note
EMRI should be purchased as a system-specific marine steering-control PCB, not as a generic industrial control card. The strongest identification evidence currently available links to the EMRI steering-control architecture and to PCB markings 3-2629-B-R1 / .
Before releasing a purchase order, request clear photographs of the complete board, both sides where possible, all labels, revision markings, connectors, and any handwritten configuration notes. If the replacement is New Surplus or used, ask whether the board has been electrically tested and whether its original configuration/setup information is available.
Most importantly, do not approve a substitution solely because another supplier lists it as “.” For marine steering equipment, the cabinet model, board revision, feedback arrangement, pump configuration, and vessel-specific commissioning parameters can matter just as much as the short model number.
