The 3RB1262-0LM20: Main circuit connection uses busbar terminals; auxiliary connections are screw terminals. Reset options include manual, automatic, and remote. The unit supports both continuous mounting (direct to contactor) and individual mounting.
For BOM lines that require this exact order code, sourcing is through independent distribution.
The 200-820 A current range covers large motor loads. The adjustable trip class 5-30 lets you match the thermal curve to the motor's starting profile. Integrated ground fault detection means this relay can signal a ground fault condition without a separate module — useful in ungrounded or resistance-grounded systems where ground fault currents are low. The monostable outputs latch on fault and require a reset action.
Deployment context
This relay mounts to S10/S12 SIRIUS contactors or individually on a panel. The busbar main circuit connection is typical for high-current motor control centers (MCCs) where bolted bus connections replace cable lugs. The screw terminal aux circuit is standard for control wiring.