SIEMENS 3RA6120-1DP32 Direct Starter

Description

SIEMENS 3RA6120-1DP32 Direct Starter

Product Dimensions：

The Siemens 3RA6120-1DP32 is a high-performance Compact Starter from the SIRIUS 3RA6 series. It is a versatile, “all-in-one” solution that integrates the functions of a circuit breaker, a contactor, and an electronic overload relay into a single, space-saving unit.

Product Detailed Description

The 3RA6120-1DP32 is a Direct-on-Line (DOL) starter designed for the starting and protection of three-phase induction motors. It features an electromechanical switching mechanism combined with electronic overload protection, providing high reliability and precise tripping characteristics. The “compact” nature of this device significantly reduces the wiring effort and the space required on the DIN rail.

Technical Parameters

Product Advantages

• Space Saving: Combines three discrete components (breaker, contactor, overload) into one housing, reducing panel space by up to 60%.
• Integrated Diagnostics: Features a built-in end-of-life indicator and distinct LEDs for “Ready,” “Device Fault,” and “Group Alarm,” allowing for rapid troubleshooting.
• Flexible Protection: The electronic overload unit offers a wide setting range (4:1 ratio) and adjustable trip classes (Class 10/20), reducing the number of variants needed in stock.
• Safe Isolation: The device provides “safe separation” between the control and main circuits, enhancing operator safety during maintenance.
• High Operational Availability: Features “Auto-Reset” capabilities after an overload trip, minimizing downtime in automated processes.

Important Considerations & Precautions

• Control Voltage: This specific model (-1DP32) requires a 24 V AC/DC control signal. Ensure your control transformer or power supply is correctly rated for the inrush current.
• Mounting Position: While it can be mounted on a standard 35mm DIN rail, ensure adequate ventilation space is left around the unit, especially when mounting multiple starters side-by-side.
• Inrush Currents: Ensure the motor’s starting current does not exceed the maximum peak current ratings of the electronic trip unit to avoid nuisance tripping.
• Wiring Torque: Adhere strictly to the recommended tightening torque for screw terminals to prevent loose connections and subsequent overheating.

Product Applications

The 3RA6120-1DP32 is ideal for standard motor-starting tasks across various industries:

• Conveyor Systems: Reliable starting and protection of drive motors in logistics and packaging.
• Pump and Fan Control: Used in HVAC and water treatment facilities for small-to-medium-sized pumps.
• Machine Building (OEM): Compact design makes it perfect for integration into small control boxes where space is at a premium.
• Processing Industry: Protecting motors in mixers, agitators, and small crushers.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

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