Siemens 3RA6120-1DB32 Direct Starter

Description

Siemens 3RA6120-1DB32 Direct Starter

Product Dimensions：

The Siemens 3RA6120-1DB32 is a high-performance SIRIUS Compact Starter. It is an integrated power distribution and motor control unit that combines the functions of a circuit breaker, a contactor, and a solid-state overload relay into a single, highly compact device.

Product Detailed Description

The 3RA6120-1DB32 belongs to the 3RA61 “Direct-on-Line” (DOL) starter series. It is designed for starting and protecting three-phase motors. By consolidating three traditional components into one, it significantly reduces the amount of wiring, simplifies the assembly process, and optimizes cabinet space. This specific model features an adjustable setting range for motor protection and is designed for a 24 V AC/DC control voltage.

Technical Parameters

Product Advantages

• Space Saving: Combines three functions into one housing, reducing panel width requirements by up to 50–70% compared to traditional starter combinations.
• Simplified Engineering: Requires significantly fewer wiring connections, which reduces the potential for installation errors and speeds up the commissioning process.
• Integrated Diagnostics: Features clear LED indicators for status monitoring (Ready, Fault, End-of-Life) and a reset button for easy recovery after a trip.
• Permanent Wiring: The terminal blocks can remain wired while the main unit is replaced, ensuring high system availability and “plug-and-play” maintenance.
• High Reliability: Built-in solid-state overload protection provides more precise tripping than thermal relays, especially in environments with fluctuating ambient temperatures.

Important Considerations (Precautions)

• Control Voltage: Ensure the control circuit provides a stable 24 V AC/DC. Using a higher voltage will damage the internal electronic control unit.
• Current Setting: The current setting dial must be accurately adjusted to the Full Load Amps (FLA) listed on the motor nameplate to ensure proper protection.
• End-of-Life Indicator: These units have a defined mechanical and electrical lifespan. Pay attention to the “End of Life” signal to proactively replace the unit before failure.
• Environment: Ensure adequate ventilation in the control cabinet, as compact starters generate heat during operation, particularly when mounted in close proximity.

Product Applications

The 3RA6120-1DB32 is ideal for diverse industrial automation and machinery tasks:

• Conveyor Technology: Controlling motors for transport belts in logistics and packaging.
• Pumps and Fans: Efficient starting and protection for small to medium-sized water pumps and ventilation systems.
• Machine Tools: Integration into control panels for milling, drilling, and grinding machines.
• Process Industry: Used in chemical or food processing plants where cabinet space is at a premium and high reliability is required.

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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