The 3RB1262-0LM10: The 200-820 A range covers large motor loads — think conveyors, pumps, compressors in the 100-400 kW ballpark depending on voltage and duty. The Class 5-30 adjustment means you can set the trip curve fast (Class 5) for short-term overload protection on lightly loaded motors, or slow (Class 30) for high-inertia loads like fans or centrifuges that take longer to start. The busbar connection on the main circuit is a panel-specific detail: this relay bolts directly to a busbar system rather than wiring through a contactor line side, so verify your busbar layout matches the S10/S12 footprint before specifying.
Siemens 3RB1262-0LM10 Overload Relay 200-820A, Discontinued
MPN3RB1262-0LM10
Siemens 3RB1262-0LM10, discontinued overload relay, 200...820 A, full motor protection, size S10/S12, Class 5...30, busbar main circuit, screw terminal aux, AC 220-240V 50/60Hz.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Product details
Frequently asked questions
Where can I buy the 3RB1262-0LM10?
This part is sourced to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a real-time check on new-old-stock or surplus inventory.
What does the 200-820 A rating mean for my motor?
The 200-820 A setting range lets you protect motors drawing anywhere in that band. The Class 5-30 adjustment tailors the trip curve: Class 5 for fast protection on standard motors, Class 30 for high-inertia loads that need longer starting time without nuisance tripping.
MPN
3RB1262-0LM10