Siemens 3RT20231NB30 Contactor S0 9A

Product Description

The SIEMENS 3RT20231NB30 is a Size S0 IEC motor contactor rated at 9 amps, designed for switching and controlling three-phase motor loads in industrial and commercial electrical systems. Built to IEC standards, this contactor fits into motor control centers, control panels, and machine control enclosures where reliable, repeatable switching is required. Licensed electricians and industrial controls technicians install this type of device as part of motor starters, reversing circuits, and automated control systems. The compact S0 frame size makes it well suited for high-density panel layouts where space is limited.

The 3RT20231NB30 is used in commercial and industrial applications requiring IEC-style motor control. Typical installations include pump panels, conveyor systems, HVAC equipment controls, and process automation panels. The S0 frame size is a standard IEC designation common in light-duty motor control applications, and this contactor is designed to integrate with companion overload relays and auxiliary contact blocks consistent with the S0 mounting footprint.

Key Features

• 9-amp AC-3 current rating suitable for light-duty three-phase motor switching
• IEC Size S0 frame for compact panel installations
• Designed to accept companion overload relays and auxiliary contact blocks
• Compact footprint: 3.622 inches long x 2.126 inches wide x 4.547 inches tall
• Lightweight construction at 1.263 pounds for easy panel mounting

Compatibility

Designed as an OEM-style IEC motor contactor for use in Size S0 motor control applications. Consult the wiring diagram and panel schedule to confirm coil voltage and pole configuration before installation.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the NEC and applicable local codes. De-energize and lock out the panel before installing or replacing a contactor. Verify coil voltage matches the control circuit voltage before energizing. Do not exceed the contactor rated current for the connected load.

Technical Specifications

• Current Rating: 9 amps
• Frame Size: S0
• Length: 3.622 inches
• Width: 2.126 inches
• Height: 4.547 inches
• Weight: 1.263 pounds

Standard Information

• Brand: SIEMENS
• Manufacturer Part Number: 3RT20231NB30