Siemens 3RT20241FB40 Contactor S0 12A

Product Description

The SIEMENS 3RT20241FB40 is a Size S0 IEC contactor rated for 12 amps, designed for switching three-phase motor loads and resistive loads in industrial and commercial control panel applications. Built to IEC standards, this contactor fits into compact panel layouts while delivering reliable make-and-break switching performance. The S0 frame size is a common footprint in European-style and IEC-rated motor control centers, making this unit a straightforward drop-in for qualified installers working on replacement or new-build panel work. Electrical contractors and industrial maintenance technicians are the primary users of this device.

The 3RT20241FB40 is suited for motor starter and load-switching applications in commercial and light industrial environments. It is commonly installed inside motor control centers, control panels, and machinery enclosures where compact IEC-footprint contactors are specified. This unit is appropriate for both new panel builds and like-for-like replacement of worn or failed Size S0 contactors in existing installations.

Key Features

• IEC Size S0 frame for compact panel mounting
• 12-amp rated load current for motor and resistive switching applications
• Three-phase switching configuration standard for motor control
• Compact footprint: 3.622 inches long x 2.126 inches wide x 4.547 inches tall
• Lightweight construction at 1.316 pounds for easy panel integration

Compatibility

Designed as an OEM-style replacement for IEC Size S0 contactors in industrial and commercial motor control panel applications. Consult wiring diagrams and panel documentation to confirm coil voltage and auxiliary contact requirements before substituting for an existing contactor.

Installation Notes

Installation should be performed by a licensed electrician familiar with IEC motor control equipment and applicable NEC requirements. De-energize and lock out the panel before removing or installing the contactor. Verify coil voltage and contact ratings against the existing circuit schematic prior to making any connections. Secure the contactor to the DIN rail or mounting surface according to the panel layout drawings.

Technical Specifications

• Frame Size: S0
• Current Rating: 12 amps
• Length: 3.622 inches
• Width: 2.126 inches
• Height: 4.547 inches
• Weight: 1.316 pounds
• UPC: 66264391502

Standard Information

• Brand: SIEMENS
• Manufacturer Part Number: 3RT20241FB40