GE Multilin 369-H1-R-M-0-0-0-E 369 Series Motor Protection Relays
Manufacturer: GE Fanuc
-
Part Number: 369-H1-R-M-0-0-0-E
Condition：New with Original Package
Product Type: Motor Protection Relays
-
Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
GE Multilin 369-H1-R-M-0-0-0-E Motor Protection Relay
The GE Multilin 369-H1-R-M-0-0-0-E, also cataloged as the 369 Motor Protection Relay, operates as a dedicated hardware component for motor protection, real-time monitoring, and diagnostic evaluation within medium-voltage AC motor control networks. The unit processes primary current and voltage signals, evaluates trip thresholds, and executes output contact state changes to safeguard connected rotating machinery against thermal damage and electrical faults.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 369-H1-R-M-0-0-0-E |
| Brand | GE Multilin |
| Origin | USA |
| Weight | 3.6 kg |
| Dimensions | 29.2 cm x 14.0 cm x 21.6 cm |
| Operating Temp | -40 deg C to +60 deg C |
| Power Consumption | 110-250 VDC or 100-240 VAC at 50/60 Hz |
| Base Model | 369 |
| Series | Multilin 369 |
| Product Type | Motor Protection Relays |
| Motor Application | Medium-voltage AC motors |
| Communication Ports | RS232 and RS485 |
| Diagnostic Tools | Pre-trip alarms, event recording, oscillography, health reports |
| Mounting Type | Panel-mounted |
Backplane Bus Communication Velocity & Firmware Integrity
The hardware processes incoming analog signals through high-speed internal converters, transferring digitized metering data across internal buses without degrading protection loop timing. Firmware flash compatibility maintains strict deterministic execution across industrial fieldbus networks, preventing bus arbitration delays during high-transient motor starting events. System processors write continuous event logs and oscillography trace captures to non-volatile memory, allowing deterministic polling over Modbus serial links without impacting primary trip logic execution speeds.
Frequently Asked Questions
Q: How does the 369-H1-R-M-0-0-0-E maintain communication performance during high-fault event logging?
A: Internal bus arbitration isolates real-time protection sampling loops from background communication stacks, ensuring serial polling over RS485 ports does not delay trip output execution times.
Q: What power source requirements apply to the control power input terminals?
A: The internal power supply board accepts broad-range control power inputs of either 110-250 VDC or 100-240 VAC at 50/60 Hz.
Q: What physical grounding measures are mandatory when installing the unit in a panel cutout?
A: The installation requires a low-impedance copper ground strap connected from the dedicated ground stud on the rear chassis directly to the enclosure main earth bar.
Field Installation Guidelines
- Isolate all control power feeds, voltage transformer secondaries, and current transformer loops before inserting the unit into the panel cutout.
- Short-circuit all secondary CT leads at external shorting blocks prior to making rear terminal connections to prevent hazardous high voltages.
- Torque all rear terminal block screws to manufacturer specification, verifying solid mechanical retention on RS485 twisted-pair shield connections.
- Verify chassis earth ground continuity using a low-resistance ohmmeter between the relay rear grounding stud and the main panel enclosure ground bus.
- Apply control power to the unit and confirm successful completion of self-test routines before un-shorting CT inputs or enabling trip output contacts.