Description
Product Overview
The GE Nexus Controls 369B1860G0033 SPU60 Control Module is a safety control module designed for the GE Nexus OnCore Safety System. It provides processing and control functions within the safety-related architecture of the Nexus platform.
The SPU60 is used together with compatible Nexus base boards and I/O modules to build safety instrumented and turbine-control applications. It works as the central control element for safety logic execution, system monitoring, and coordination of connected modules.
This module is commonly applied in power generation, turbine protection, and industrial safety control systems. Before replacement, confirm the complete part number, hardware revision, system configuration, and compatibility with the installed Nexus rack.

369B1860G0033
Key Features
🔹 GE Nexus OnCore Safety System compatible module
🔹 SPU60 safety processing and control module
🔹 Designed for SIL-related industrial control applications
🔹 Works with Nexus safety I/O modules and base boards
🔹 Supports safety logic processing and system coordination
🔹 24 VDC industrial power supply architecture
🔹 Suitable for turbine control and protection applications
Product Datasheet
| Parameter | Specification |
|---|---|
| Brand | GE Nexus Controls |
| Model | 369B1860G0033 |
| Series | Nexus OnCore Safety System |
| Product Name | SPU60 Control Module |
| Module Type | Safety Processing Unit / Control Module |
| Function | Safety logic processing and control management |
| Compatible Base Board | BSPU60 (369B1860G0034) |
| Power Supply | 20.4–28.8 VDC |
| Power Consumption | Approximately 5.0 W |
| Application | Turbine control, safety systems, industrial automation |
| Communication | Nexus internal system communication |
| Dimensions | To be confirmed from hardware drawing |
| Weight | To be confirmed |
| Country of Origin | Verify product label |
| Product Condition | New, used, or refurbished; confirm actual stock condition |
| Discontinued Status | Verify current lifecycle status |
Typical Applications
🔹 Gas turbine safety control systems
🔹 Steam turbine protection systems
🔹 Power plant automation
🔹 Safety instrumented systems (SIS)
🔹 Industrial process protection
🔹 Nexus OnCore control cabinets
Frequently Asked Questions
Q1: What is the GE Nexus 369B1860G0033?
It is the SPU60 Control Module used in the GE Nexus OnCore Safety System.
Q2: What does SPU60 mean?
SPU60 refers to the Safety Processing Unit module within the Nexus safety-control architecture. It performs control and safety processing functions.
Q3: What base board is required for SPU60?
The SPU60 is associated with the BSPU60 base board module, part number 369B1860G0034.
Q4: What voltage does the SPU60 require?
The module uses a 24 VDC industrial power supply system. The specified operating range is approximately 20.4–28.8 VDC.
Q5: Can SPU60 replace an MPU module?
No. MPU modules and SPU modules have different functions. The MPU family is used for controller and communication functions, while SPU60 is designed for safety control processing.
Q6: Can it be installed in any Nexus rack?
No. Verify the rack configuration, base board, firmware compatibility, and application configuration before installation.
Troubleshooting Guide
Problem: SPU60 module does not start
🔧 Check the 24 VDC power supply and wiring.
🔧 Confirm the module is correctly installed on the base board.
🔧 Check system diagnostic indicators.
🔧 Verify rack power distribution.
Problem: Safety system reports module failure
🔧 Record the diagnostic message before resetting.
🔧 Check communication between SPU60 and connected I/O modules.
🔧 Inspect connectors and backplane connections.
🔧 Confirm hardware compatibility.
Problem: Communication with I/O modules is lost
🔧 Check the Nexus network connection.
🔧 Verify the related base board installation.
🔧 Inspect wiring and connector condition.
🔧 Review configuration parameters.
Problem: Replacement module cannot be commissioned
🔧 Compare the original and replacement part numbers.
🔧 Verify firmware and application configuration.
🔧 Confirm the correct BSPU60 base board is installed.
🔧 Perform system testing before returning equipment to operation.
Safety Notes
⚠️ Always isolate system power before removing or installing the SPU60 module.
⚠️ Use anti-static protection when handling electronic boards.
⚠️ Do not install a module with damaged connectors or visible PCB damage.
⚠️ Safety-system changes should only be performed by qualified personnel following approved procedures.
Recommended Related GE Nexus Controls Models
- 369B1860G0033 – SPU60 — Safety Processing Control Module.
- 369B1860G0034 – BSPU60 — SPU60 Base Board Module.
- 369B1860G0030 – MPU55 — Nexus Controller Module.
- 369B1860G0031 – MPU56 — Nexus Communication Control Module.
- 369B1860G0028 – MPU51 — Nexus Communication Control Module.
- 369B1860G0024 – MDP10 — PROFIBUS-DP Master Communication Module.
- 369B1860G0025 – MDP11 — PROFIBUS-DP Master Communication Module.
- 369B1843G5009 – SDI60 — 24-Channel Digital Input Module.
- 369B1844G5009 – SDO60 — 6-Channel Digital Output Module.
- 369B1841G5013 – SAI60 — 8-Channel Analog Input Module.
- 369B1841G5014 – BSAI60-F — SAI60 Base Board Module.
- 369B1843G5010 – BSDI60-F — SDI60 Base Board Module.
- 369B1844G5010 – BSDO60-F — SDO60 Base Board Module.
- 369B1851G5002 – MSP50 — Speed Measurement and Overspeed Protection Module.
- 369B1852G0007 – MLP50 — TMR Redundant Logic Control Module.
Ordering Note: Confirm the complete GE Nexus part number 369B1860G0033, SPU60 designation, compatible BSPU60 base board, and installed Nexus system configuration before purchase or replacement.
