Schneider Electric LX1FG380 TeSys F Contactor Coil | 380/400V AC

Schneider Electric LX1FG380 TeSys F Contactor Replacement Coil (380/400V AC 50Hz)

The Schneider Electric LX1FG380 is a high-performance replacement AC control coil, specifically for the TeSys F family of heavy-duty contactors. It is Premium-grade quality. This control coil is designed to endure the tough conditions of demanding locations, such as in naval engine rooms and big industrial automation facilities, to provide fast and reliable switching transitions of the main power circuits.

It provides the required electromagnetic force to energise 3-pole and 4-pole LC1F contactors, and operates reliably at 380/400V AC at 50Hz (cross rated at 460/480V AC at 60Hz). It’s ruggedly engineered to minimise heat dissipation and maximise mechanical endurance to keep your important motor starters and distribution systems running during harsh operational duty cycles.

Model Details

• Model Short Name: LX1FG
• Manufacturer Part Number (MPN): LX1FG380
• Product Type: Contactor Control Coil

Technical Specifications

Device Compatibility

• The LX1FG380 coil is explicitly designed for integration into the following TeSys F series frame sizes:
• Schneider Electric LC1F185 (3-Pole and 4-Pole AC Contactors)
• Schneider Electric LC1F225 (3-Pole and 4-Pole AC Contactors)

Cross-Reference Part Numbers

• Schneider Electric / Telemecanique: LX1-FG380, LX1FG380
• Voltage Code Equivalent: Q5/V5 (for 380/400V 50Hz), Q6 (for 460/480V 60Hz)

Maintenance and Installation Guide:

1. Verify the Voltage Drop-Out Window: This coil drops out cleanly between 0.35 and 0.55. If your contactor is chattering rather than opening completely, verify that residual or induced voltage in long control cable runs isn’t holding the coil in an indeterminate state.
2. Cold vs. Hot Resistance Auditing: The nominal resistance is 51.3 Ohms at 20°C. If you suspect an internal short circuit due to cooking or localized hot-spots (common in poorly ventilated engine room enclosures), isolate the coil and read its resistance. A significantly lower value indicates shorted turns, requiring an immediate swap.
3. Mechanical Alignment Check: When replacing the coil in an LC1F225 or LC1F185 frame, always check the pole faces of the laminated core for dust, rust, or old grease. If the core faces do not seat perfectly flush due to misalignment during coil insertion, the coil will draw excess inrush current continuously, leading to rapid thermal failure.
4. Suppressor Integration: Because the LX1FG380 does not feature a built-in suppressor module, it is highly recommended to mount an external RC surge suppressor block across terminals A1 and A2 if this coil is controlled by sensitive PLC digital output cards.