Product Core Brief
- Model: 869-E-P1-P1-B1-H-S-S-A-L-A-M-M-P-F-B-SE-N-N-B-N-1
- Brand: GE Multilin (GE Vernova)
- Series: Multilin 8 Series Motor Management Relay
- Core Function: Advanced protection, control, monitoring, and diagnostics for medium- and large-sized induction and synchronous motors.
- Product Type: Motor Management / Motor Protection Relay
- Key Specs: 8 Series platform | draw-out design | high-speed motor protection | programmable logic | advanced diagnostics | multiple communication options | cybersecurity features
- Condition: New Surplus / Refurbished (confirm exact firmware, option modules, and nameplate)
Product Introduction
The GE Multilin 869 is a member of the Multilin 8 Series protection and control relay platform, designed for comprehensive protection, control, and management of medium- and large-sized induction and synchronous motors. It provides high-speed motor protection, advanced diagnostics, fault and disturbance recording, programmable logic, and flexible communication integration with SCADA, DCS, and asset management systems.
The full order code 869-E-P1-P1-B1-H-S-S-A-L-A-M-M-P-F-B-SE-N-N-B-N-1 represents a specific configuration of the 869 platform. Based on typical GE Multilin 8 Series ordering conventions, it can be interpreted as:
- 869: Multilin 869 Motor Management Relay
- E: Enhanced or advanced feature / communication tier within the 8 Series platform
- P1: Phase CT input rating, typically 5 A secondary
- P1: Ground CT input rating, typically 5 A secondary
- B1: Control power supply option; exact voltage range must be confirmed from the nameplate
- H: High-speed or high-performance protection / processing option
- S-S: Communication and I/O option slots; likely serial, Ethernet, or fieldbus modules depending on configuration
- A-L: Additional application, logic, or I/O option codes
- A-M-M: Metering, monitoring, and motor model option codes
- P-F-B: Protection function, fieldbus, or communication protocol options
- SE: Special engineering, software, or export/configuration variant
- N-N-B-N: Additional I/O, RTD, thermistor, analog output, or option module codes
- 1: Revision, firmware, or configuration suffix
Because GE Multilin 8 Series relays support many configurable option slots, the exact meaning of each suffix should be verified against the relay nameplate, order confirmation, or GE Vernova docu
mentation. This unit should not be assumed interchangeable with a differently suffixed 869 without engineering review.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Product Type | Motor Management Relay |
| Brand | GE Multilin (GE Vernova) |
| Model | 869-E-P1-P1-B1-H-S-S-A-L-A-M-M-P-F-B-SE-N-N-B-N-1 |
| Platform | Multilin 8 Series |
| Application | Medium- and large-sized induction and synchronous motors |
| CT Inputs | Phase and ground CT inputs; P1 typically indicates 5 A secondary |
| Control Power | B1 option; confirm exact AC/DC range from nameplate |
| Communications | Multiple option slots; Ethernet, serial, and fieldbus options available on 8 Series |
| Protection | Overcurrent, thermal overload, ground fault, jam/stall, unbalance, start supervision, and more |
| Diagnostics | Advanced motor diagnostics, fault recording, disturbance recording, and asset monitoring |
| Construction | Draw-out relay design typical for Multilin 8 Series |
Exact CT ratios, control power voltage, communication protocols, I/O count, RTD/thermistor inputs, and firmware version must be confirmed from the relay nameplate.
Quality Control Process (DYNAMIC GENERATION)
- Order-code verification: Confirm the full suffix 869-E-P1-P1-B1-H-S-S-A-L-A-M-M-P-F-B-SE-N-N-B-N-1 matches the site CT ratings, control power, communications, and I/O requirements.
- Visual and mechanical inspection: Check front panel, display, LEDs, draw-out mechanism, terminal blocks, and option modules for damage or corrosion.
- Control power test: Apply the correct B1 control voltage and verify relay boot-up, display, and status indicators.
- CT input and metering check: Verify phase and ground CT inputs and measured values against site ratios.
- Protection function test: Validate thermal overload, overcurrent, ground fault, stall, unbalance, and trip output operation per applicable test procedures.
- Communication and logic test: Confirm Ethernet/serial/fieldbus communication, programmable logic, and diagnostics reporting before final packing.
Replacement Pitfall Guide (DYNAMIC GENERATION)
❗ Do not substitute CT input codes without verification. P1 typically indicates 5 A CT inputs; replacing with a 1 A option may cause incorrect metering or protection behavior.
❗ Confirm the B1 control power option. Applying the wrong AC/DC control voltage can damage the relay or prevent operation.
❗ Verify communication and option modules. The S-S, P-F-B, SE, and N-N-B-N suffixes may define Ethernet, serial, fieldbus, RTD, analog output, or I/O options. These must match the site system.
❗ Do not assume direct interchangeability with SR 469, 269+, or 850/845 relays. The 869 is a dedicated motor management relay; other Multilin platforms serve different applications.
❗ Back up settings before replacement. Even with the same model code, firmware revisions and site-specific setpoints must be verified or reloaded.
❗ Confirm firmware and cybersecurity features. Some 8 Series relays support advanced cybersecurity functions such as AAA, RBAC, and Syslog; these should be reviewed during migration.
Compatibility Matrix & Benchmarks
| Original Model | Replacement / Successor Model | Compatibility Level | Migration Notes |
|---|---|---|---|
| GE Multilin 869-E-P1-P1-B1-H-S-S-A-L-A-M-M-P-F-B-SE-N-N-B-N-1 | Same 869 configuration | Direct | Match full order code, firmware, and option modules. |
| GE Multilin 869 with different suffix | GE Multilin 869 | Needs Verification | Confirm CT inputs, control power, communications, and I/O options. |
| GE Multilin SR 469 / 269+ | GE Multilin 869 | Migration | 869 is the 8 Series motor management platform; requires setting migration and I/O review. |
| GE Multilin 869 | GE Multilin 8 Series motor relay | Migration | Current 8 Series platform; verify protocol, I/O, and engineering compatibility. |
Benchmarks:
- GE Multilin 8 Series motor management relay for medium- and large-sized motors.
- Advanced motor protection, diagnostics, and programmable logic.
- Draw-out design for easier testing and maintenance.
- Supports multiple communication protocols and SCADA/DCS integration.
- Suitable for oil & gas, mining, metals, cement, wastewater, and heavy industrial motor applications.
