Description
1. Unboxing & Physical Snapshot
- Model & Brand: GE Multilin 369 Digital Motor Protection System (Part No. 369-HI-R-0-0-0-E)
- Physical Dimensions (Approximate W x H x D): 216.0 mm x 178.0 mm x 225.0 mm (8.5 in x 7.0 in x 8.85 in).
- Estimated Shipping Weight: 2.10 kg (4.63 lbs).
- What’s in the Box: Microprocessor-based motor management relay unit, detachable pluggable terminal blocks, RS-485 communication port connectors, front-keypad membrane overlay, and original factory calibration conformance documentation.
2. Product Introduction
Panel builders mount this digital motor management system directly into low- and medium-voltage switchgear compartments—which is vital for centralizing protection logic away from harsh field environments.
The heavy-gauge metallic enclosure shields internal multi-layer printed circuit boards from intense electromagnetic interference emitted by nearby variable frequency drives. Translating real-time analog sensor data into precise trip or alarm commands, this hardware maintains plant asset safety under intense electrical stress.
3. Core Technical Specifications
| Parameter | Value |
| Device Function | Digital Motor Protection and Management Relay |
| Control Power Supply | High-input range (HI option: 90-300 V DC / 70-265 V AC, 48-62 Hz) |
| Output Relay Configuration | Standard mechanical trip/alarm relay options (Option R) |
| Current Transformer Inputs | 1 A / 5 A secondary standard CT inputs |
| Temperature Inputs | Up to 12 RTD inputs (Pt100, Ni100, Cu10) for stator monitoring |
| Communication Interfaces | RS-485 serial ports (Modbus RTU), front optical USB port |
| Operating Temperature Range | -20 °C to +60 °C (-4 °F to +140 °F operational threshold) |
| Enclosure Protection Class | IP52 front-panel rating when properly gasketed |
4. Global Compliance & Industry Certifications
- Expected Regulatory Approvals: CE Mark, CSA NRTL/C, UL Listed, ATEX hazardous location compliance, and IEC 60255 protection standards.
- Safety & Compliance Impact: Compliance with UL and CSA industrial standards ensures that internal isolation boundaries prevent high-voltage power faults from breaching low-voltage communication loops, safeguarding plant operators during switchgear maintenance.
- Verify specific lot certifications with OEM.
5. Long-Term Storage & Asset Preservation Guide
Keep this motor protection relay sealed inside its original anti-static (ESD) shielding bag to protect sensitive internal logic boards from static electricity discharges. Maintain warehouse storage conditions at a relative humidity level strictly below 60% to prevent oxidation on the pluggable terminal block pins over extended holding cycles. Store the unit flat on shelving racks, avoiding excessive stacking weights that could warp or distort the heavy metallic housing enclosure.
6. Physical Installation Prerequisites
- Verify that switchgear cutout dimensions match exact panel clearances before securing the mounting hardware brackets.
- Torque all screw terminals on the pluggable connectors precisely to prevent loose current transformer (CT) connections under continuous industrial vibration.
- Route communication cables and control power wiring completely away from high-voltage motor feeder cables to eliminate induced electromagnetic interference.
7. Buyer’s FAQ (Logistics & Compliance Focus)
- Q: What Harmonized System (HS) code applies for international customs clearance on this protection relay?
- A: Industrial electronic control and protective relay devices typically classify under HS code 8536.49 or 8537.10 depending on local customs regulations. Confirm exact codes with your trade compliance broker.
- Q: Does this hardware ship with pre-loaded motor configuration settings?
- A: Units ship with standard factory default parameters. Site engineers must program specific motor thermal curves, CT ratios, and trip settings via the setup software suite during commissioning.
- Q: How does the Country of Origin (COO) documentation affect our import compliance audit?
- A: Manufacturing origin records correspond to authorized North American or European production facilities. Check the commercial invoice documentation for precise country details to satisfy trade treaty requirements.
- Q: Is specialized transit insurance recommended during shipment?
- A: Yes. Because electronic protection relays contain complex internal microprocessors and delicate display components, comprehensive transit insurance guarding against mechanical shock damage is strongly advised.
- A: Yes. Because electronic protection relays contain complex internal microprocessors and delicate display components, comprehensive transit insurance guarding against mechanical shock damage is strongly advised.
