Siemens 3RV2031-4VA15 SIRIUS Motor Protection Circuit Breaker 35 - 45 A (S2)

The Siemens 3RV2031-4VA15 is a SIRIUS 3RV2 motor protection circuit breaker (MPCB) from the 3RV2031 series, frame size S2, with an adjustable overload trip range of 35 - 45 A. Combining short-circuit, overload and manual switching protection in one compact device, it is supplied across Saudi Arabia by Razz Middle East for motor branch-circuit protection and motor-starter combinations.

Technical Overview

The 3RV2031-4VA15 integrates a thermal-magnetic trip unit to IEC 60947-2 and IEC 60947-4-1: a temperature-compensated bimetal handles overload, while a fixed magnetic element trips instantaneously on short circuit at roughly 13× the upper current setting. It functions simultaneously as an isolating main switch and as the short-circuit protective device for the motor feeder, enabling type-2 coordinated starters when combined with a matching SIRIUS contactor. A rotary dial sets the motor full-load current within the 35 - 45 A band.

Performance & Specifications

Rated breaking capacity (Icu) is up to 50 kA at 400 V on the S2 frame, with Class 10 trip characteristics and a clear ON/OFF/TRIP handle position indication. The device supports lockable isolation for safe maintenance and operates from -20 °C to +60 °C, well within Saudi switchroom conditions.

Applications in Saudi Arabia

The 3RV2031-4VA15 provides combined short-circuit and overload protection for motor feeders throughout Saudi industry. It is specified in NWC and SWCC pumping stations, SABIC and Sadara petrochemical MCCs, MAADEN mining and cement drives, and ARAMCO utility systems, where its integrated isolation function simplifies lock-out / tag-out and its high breaking capacity copes with the stiff fault levels found close to large Eastern Province substations.

Installation & Integration

The 3RV2031-4VA15 mounts on 35 mm DIN rail or by screw fixing and accepts a full range of SIRIUS accessories — auxiliary and signalling switches, undervoltage and shunt trips, and link modules for direct connection to a downstream contactor to form a type-2 coordinated starter. Its compact S2 frame slots into standard motor control centre buckets, and the lockable rotary handle provides the isolation point required for permit-to-work maintenance. Razz Middle East supplies the matching contactors and accessories alongside the breaker so that customers across the Eastern Province can specify a complete, coordinated motor feeder from one source.

Standards, Quality & Compliance

Every 3RV2031-4VA15 supplied by Razz Middle East is a genuine Siemens product, manufactured under ISO 9001 quality management and conforming to the relevant IEC 60947 standards with international CE and UL approvals. Sourcing through an authorized channel guarantees correct datecodes, factory documentation and full warranty cover — a critical safeguard on safety-related motor control and protection equipment, where counterfeit components present a real risk to plant and personnel. For ARAMCO, SABIC, MAADEN, NWC and NEOM contractors operating under strict approved-vendor and traceability regimes, this assurance shortens technical and commercial evaluation and keeps projects on schedule. Razz Middle East backs each delivery with selection support, cross-referencing from competitor part numbers and documented lead times.

Why Choose Razz Middle East for Siemens Products

Razz Middle East supplies the genuine, factory-sealed Siemens 3RV2031-4VA15 as an authorized channel for Siemens industrial control products in the Kingdom of Saudi Arabia. Every motor protection circuit breaker ships with full manufacturer documentation and traceability, protecting your facility from counterfeit risk on safety-critical equipment. Our technical desk responds to RFQs within four working hours, and we hold local stock in Dammam and Riyadh with onward delivery to Dammam, Jubail, Riyadh, Jeddah and Yanbu. Whether you are sourcing a single replacement for an unplanned shutdown or standardising a complete motor control centre, our team supports selection, cross-referencing and lead-time planning for ARAMCO, SABIC, MAADEN, SWCC/NWC and NEOM contractors across the Kingdom.