Siemens 3RT20151FB443MA0 Contactor S00 3-pole

Product Description

The SIEMENS 3RT20151FB443MA0 is a Size S00 IEC-frame contactor designed for motor switching and load control in industrial and commercial electrical systems. This 3-pole contactor fits within the SIRIUS RT series product family and is intended for use in motor starter assemblies where compact footprint and reliable switching performance are required. Licensed electricians and industrial controls technicians are the primary installers. The unit ships as a single piece and weighs 0.767 pounds, making it well suited for panel and DIN-rail installations where space and weight are constraints.

This contactor is applied in motor control centers, control panels, and machinery enclosures where IEC-style contactors are specified. Size S00 frames are commonly used for smaller motor loads in both residential and light commercial mechanical systems, as well as in industrial automation and HVAC equipment control circuits. It is packaged one per pack and integrates into standard IEC motor starter configurations alongside overload relays and auxiliary contact blocks.

Key Features

• Size S00 IEC frame for compact panel installations
• 3-pole switching configuration suitable for three-phase motor loads
• Lightweight at 0.767 pounds for easy panel integration
• Single-unit packaging for straightforward procurement and inventory
• Compatible with standard IEC motor starter accessory components

Compatibility

Designed as an OEM-style IEC contactor for use in three-phase motor control applications requiring a Size S00 frame. No specific model or system compatibility data was provided in the product input.

Installation Notes

Installation should be performed by a licensed electrician in accordance with NEC requirements and applicable local codes. De-energize and lock out the panel or control circuit before installing or replacing the contactor. Mount securely to a DIN rail or back panel per the manufacturer's mechanical specifications. Do not exceed the rated electrical values of the device.

Technical Specifications

• Frame Size: S00
• Poles: 3
• Length: 2.421 inches
• Width: 1.969 inches
• Height: 4.744 inches
• Weight: 0.767 pounds
• Package Quantity: 1 per pack
• UPC: 66264390906

Standard Information

• Brand: SIEMENS
• Manufacturer Part Number: 3RT20151FB443MA0