Siemens 3RU2146-4LB0 Thermal Overload Relay 57-75A

Siemens is a global leader in electrical engineering and automation, represented across Saudi Arabia by Razz Middle East — the Kingdom's authorized distributor for Siemens industrial products. Our Dammam and Riyadh stock points ensure same-day availability for critical MRO requirements at Aramco, SABIC, MAADEN, and NEOM project sites.

The Siemens 3RU2146-4LB0 is a SIRIUS thermal overload relay with a 57–75A setting range and trip class 10 for motor protection. It features phase-failure sensitivity, temperature compensation and direct mounting onto 3RT2 contactors. Complies with IEC 60947-4-1.

Technical Specifications: Setting range: 57–75 A; Trip class: 10; Phases: 3; Reset mode: Manual/Auto; Mounting: Direct to contactor / standalone; Standard: IEC 60947-4-1. Ambient temperature: -25°C to +60°C. All Siemens products supplied by Razz Middle East are genuine, factory-sealed units with full manufacturer documentation.

Saudi Arabia Applications: The 3RU2146-4LB0 is widely used across Saudi industrial facilities — in ARAMCO rotating equipment protection, SABIC motor branch circuits, SWCC pump motor protection, and MAADEN conveyor drives. Its international standards compliance makes it the component of choice for EPC firms executing NEOM, Red Sea Project, and Vision 2030 industrial developments.

Availability from Razz Middle East: Razz stocks the complete Siemens range including the 3RU2146-4LB0. We serve Jubail Industrial City, Yanbu, Jeddah, Riyadh, and all major KSA industrial zones with guaranteed 24-48 hour delivery. Submit your RFQ through our website or contact our technical team in Dammam for pricing and lead times.