Siemens 3RM10021AA04 Hybrid Dol Motor Starter

Product Description

The SIEMENS 3RM10021AA04 is a hybrid direct-on-line (DOL) motor starter designed for industrial motor control applications. Hybrid DOL starters combine solid-state switching with mechanical contacts, reducing inrush current stress and contact wear compared to conventional across-the-line starters. This unit ships as a single device and weighs 0.699 pounds, making it a compact solution for panel builders and electrical contractors working in space-constrained enclosures. Licensed electricians and industrial controls technicians are the primary installers of this type of device.

This hybrid DOL starter is suited for use in motor control centers, control panels, and machinery where reliable direct-on-line starting is required. Its compact footprint — 4.291 inches long, 1.417 inches wide, and 6.575 inches tall — allows integration into tight cabinet layouts. It is appropriate for both OEM machine builders and facility maintenance teams performing motor starter replacements or new panel builds in industrial and commercial environments.

Key Features

• Hybrid switching technology combines solid-state and mechanical contact operation for reduced arc wear
• Direct-on-line starting configuration for straightforward motor control
• Compact dimensions: 4.291 x 1.417 x 6.575 inches for space-efficient panel mounting
• Lightweight at 0.699 pounds, simplifying handling and installation
• Single-unit pack quantity supports one-for-one replacement or new installation

Compatibility

Designed as an OEM-style replacement or new-installation hybrid DOL motor starter for industrial motor control applications. No specific compatible model numbers or system families were provided in the product data.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and any applicable local codes. Disconnect and lock out all power to the panel or motor control center before handling or wiring this starter. Verify that the motor load and supply voltage are within the rated parameters of this device before energizing. Do not bypass or defeat any built-in protective functions during commissioning.

Technical Specifications

• Weight: 0.699 pounds
• Length: 4.291 inches
• Width: 1.417 inches
• Height: 6.575 inches
• Pack Quantity: 1
• UPC: 88762116793

Standard Information

• Brand: SIEMENS
• Manufacturer Part Number: 3RM10021AA04