GE 869-E-P5-P5-B5-H-R-R-A-L-N-G-M-P-F-B-SE-N-N-B-N 869 Motor Protection Relay

GE 869-E-P5-P5-B5-H-R-R-A-L-N-G-M-P-F-B-SE-N-N-B-N Full Model Analysis
I. Product Basic Positioning
Series: GE Multilin 869 Motor Protection Relay
Purpose: Complete protection for medium and high voltage three-phase asynchronous motors and synchronous motors, widely used in power plants, chemical plants, metallurgy, oil and gas, water plants, etc., with protection, measurement, control, fault recording, communication functions, IEC 61850 optional.
Naming Rules: 869-[Shell Voltage]-[CT1]-[CT2]-[PT]-[Logic Input Power Supply]-[Output 1 Configuration]-[Output 2 Configuration]-[Communication 1]-[Language]-[Logic Power Supply]-[Fault Recording]-[IO Expansion Card]-[Backplane Connector]-[Front Panel Buttons]-[Terminal Type]-[Software Options]-[Certification]-[RTD1]-[RTD2]-[Backup Power Supply]-[Special Functions]

Segmented and Bit-by-Bit Disassembly Model
Complete Segmentation: 869 | E | P5 | P5 | B5 | H | R | R | A | L | N | G | M | P | F | B | SE | N | N | B | N
869: Product Series Number = Multilin 869 Motor Protection Device
E: Shell Power Supply Voltage
E = 100–240 VAC / 125–250 VDC Universal wide-range power supply
P5: Stator CT Ratio Specification 1, P5 = 5A Secondary CT Input
P5: Stator CT Ratio Specification 2, Second Current Channel 5A CT
B5: PT Voltage Input Specification, B5 = 120V Secondary Voltage Transformer Input
H: Logic Input Auxiliary Power Supply, H = 125 VDC Passive Dry Contact Input
R: Output Relay 1 Configuration, R = Standard Fault Trip Relay
R: Output Relay 2 Configuration, R = Alarm Auxiliary Relay
A: Main Communication Interface, A = RS485 Modbus RTU
L: Panel Operating Language, L = English English operating interface
N: No Built-in RTD Temperature Measurement Card (Does not include stator / bearing temperature collection)
G: Fault Recording Function, G = Standard Waveform Recording, Event Sequence Recording SOE
M: IO Expansion Module, M = Standard Multi-function IO Expansion Board
P: Backplane Connector, P = Standard Plug-in European Terminal Backplane
F: Front Panel, F = Standard LCD Display + Function Key Panel
B: Terminal Type, B = Screw Fastening Standard Terminal
SE: Software Function Package SE = Standard Edition Standard Protection Logic (Does not include advanced arc Flash, synchronous motor-specific algorithms)
N: No First External RTD Temperature Measurement Module
N: No Second External RTD Temperature Measurement Module
B: Backup Power Supply, B = Built-in Backup Capacitor (Power-off retention event recording, fault recording)
N: No Special Custom Functions, Standard Factory Configuration
 Core Hardware and Protection Functions

Electrical Parameters
Working Power Supply: 100~240VAC / 125~250VDC (E Type Power Supply)
Current Collection: Two 5A CT Inputs, compatible with industrial standard current transformers
Voltage Collection: 120V PT Secondary Input, compatible with medium voltage switchgear voltage circuit Switch quantity input: 125VDC passive contact DI, connected to circuit breaker position, isolation switch, emergency stop signal
Output contacts: 2 relays (trip + alarm), capable of driving trip coil, audible and visual alarm
Standard protection logic (SE standard version)
Overload protection, overcurrent protection, start timeout, phase imbalance, phase loss, grounding fault, negative sequence overcurrent, overvoltage / undervoltage, phase sequence protection, heat capacity accumulation protection.
Complementary functions: 4-20mA analog output, SOE event sequence, fault recording, Modbus RTU communication to DCS/PLC.

Application scenarios
Thermal power plant / Hydropower plant: Exhaust fan, supply fan, circulating water pump, coal grinding high-voltage motor protection
Chemical and oil industry: Compressor, pump set, mixer high-power motor switch cabinet protection
Metallurgical rolling: Main drive, dust removal fan, cooling water pump comprehensive relay protection
Water plant / sewage treatment: Large submersible pump, blower complete protection

Accessories and spare parts information
Configuration software: GE EnerVista 869 Setup software, used for setting values, fault recording reading, logic programming
Communication: RS485 Modbus RTU, can be equipped with gateway to Profinet/EtherNet/IP
Expansion and upgrade: This model does not come with RTD temperature measurement, if bearing temperature monitoring is required, an external RTD expansion card can be used
Life cycle: GE Multilin 869 is the current main motor protection model, the original factory continues to supply and spare parts are sufficient

Distinction of similar models in the same series
869 = Motor-specific protection; 469 = Feeder protection; 369 = Small low-voltage motor; 769 = Transformer protection
Suffix SE = Standard version, AE = Advanced version (including arc flash protection, synchronous motor algorithm)
Suffix with T = Built-in RTD temperature measurement card, this model N/N represents no temperature measurement function