Schneider Electric LR9G500 TeSys Giga Electronic Overload Relay 125-500 A Class 5E-30E LC1G Relay

The Schneider Electric LR9G500 is a TeSys LRG electronic thermal overload relay for the TeSys Giga (LC1G) high-power contactor range, adjustable over 125-500 A with a selectable class 5E-30E trip curve, push-in control connection, and built-in ground-fault and phase-imbalance protection.

Technical Specifications

Certifications & Standards

• CB Scheme
• CCC
• cULus
• UKCA
• ATEX
• EAC
• IEC 60947-4-1
• IEC 60947-5-1
• UL 60947-4-1
• CSA C22.2 No 60947-4-1

Selection Notes

The 125-500 A range sizes this relay to the TeSys Giga contactor it is paired with; set the class dial to 10E for general-purpose duty and move to 20E or 30E only for high-inertia loads with long starting times, since a higher class number tolerates a longer overcurrent before tripping. Built-in ground-fault and phase-imbalance alarm outputs remove the need for a separate earth-fault relay on the same feeder, and the push-in control terminals cut the wiring time against the screw-clamp LR9D/LR97D relays used on the smaller TeSys D/K frames.