Siemens 3RB31234SB0 3-12A Solid State Overload Relay

Siemens 3RB31234SB0 Overload Relay

A solid‑state overload relay designed to protect 3‑phase motors from overloads, phase imbalance, or phase failure. Fits directly on a Siemens S0 contactor. Includes both manual and automatic reset options and has one normally open + one normally closed auxiliary contact.

Key Specs

Current Setting: 3 ‑ 12 A

Poles: 3

Auxiliary Contacts: 1 NO + 1 NC

Protection Types: Overload, phase unbalance, phase failure

Mounting: Contactor mounting, screw terminals Enclosure Rating: IP20