Siemens 3RW3926-8A Accessory Fan Sirius Soft Starter

Product Description

The SIEMENS 3RW3926-8A is an accessory fan unit designed for use with SIRIUS series soft starters. It provides supplemental cooling to the soft starter assembly during operation, helping maintain safe operating temperatures under sustained or high-cycle load conditions. This fan accessory is a factory-style replacement or add-on component intended for installation by qualified industrial electricians or controls technicians familiar with motor control equipment. The unit ships as one piece per pack and weighs 0.026 pounds, making it a compact, lightweight addition to the soft starter enclosure.

This accessory fan is applied in industrial and commercial motor control installations where SIRIUS soft starters are used to manage motor starting current and ramp-up speed. Typical environments include manufacturing facilities, pump stations, conveyor systems, and HVAC mechanical rooms where soft starters operate in demanding duty cycles that generate heat requiring active dissipation. The fan mounts directly to the compatible soft starter unit to support thermal management of the drive assembly.

Key Features

• Designed as a direct accessory for SIRIUS series soft starters
• Provides active cooling to extend soft starter service life under high-cycle or sustained loads
• Compact form factor: 3.15 inches x 2.638 inches x 0.472 inches
• Lightweight construction at 0.026 pounds for easy handling and installation
• Sold individually, one unit per pack

Compatibility

Designed as an OEM-style accessory fan for SIRIUS series soft starters. Consult the soft starter documentation or SIEMENS product selection guides to confirm fitment for the specific soft starter model in service.

Installation Notes

Installation should be performed by a qualified electrician or industrial controls technician in accordance with NEC requirements and local codes. Disconnect and lock out all power to the soft starter and associated motor control panel before servicing or installing any accessory components. Verify that the accessory fan orientation and mounting configuration match the soft starter enclosure before securing in place. Do not energize the system until the accessory is fully seated and all covers are reinstalled.

Technical Specifications

• Dimensions (L x W x H): 3.15 inches x 2.638 inches x 0.472 inches
• Weight: 0.026 pounds
• Quantity per Pack: 1
• UPC: 75455465326

Standard Information

• Brand: SIEMENS
• Manufacturer Part Number: 3RW3926-8A