Siemens Fan Relays

Overview

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…