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Siemens 3RB1246-1QB01 — Overload Relays

Siemens 3RB1246-1QB01 Overload Relay, 6.3-25 A, Discontinued

MPN3RB1246-1QB01

Siemens SIRIUS 3RB1246-1QB01 overload relay, discontinued, 6.3-25 A, size S00/S0, DC 24 V, screw terminals.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Product details

The 3RB1246-1QB01: The 6.3 to 25 A current range covers standard IEC motor sizes. The Class 5 to 30 trip class matches the motor's starting characteristics. The DC 24 V control supply is standard for modern PLC-driven panels, and the bistable output holds its state even if the control power drops — useful for fault memory in unattended installations.

Deployment Context

The screw terminals on the auxiliary circuit accept standard ferruled wires, and the manual-automatic-remote reset selector lets you configure the behavior for attended or remote operation.

Frequently asked questions

What is the 3RB1246-1QB01 used for?

It is an overload relay for full motor protection in size S00 or S0 contactor frames, rated 6.3 to 25 A with Class 5 to 30 trip curves. It protects motors on conveyor drives, pumps, and fans in industrial control panels.

What compliance documentation is available for the 3RB1246-1QB01?

The evidence does not list specific compliance certifications (RoHS, REACH, UL, IEC) for this order code. Standard Siemens SIRIUS overload relays typically carry CE, UL, and CSA markings, but verify the specific nameplate for this unit.

MPN
3RB1246-1QB01