Siemens 8WD44 Flashing light element, red, LED bulb, 24VAC/DC Part number 8WD4420-5BB

Product Overview

The Siemens 8WD4420-5BB is a SIRIUS 8WD44 series red flashing-effect signal light element with integrated LED, designed for 24 V AC/DC operation and a diameter of 70 mm. It is ideal for use in industrial signalling columns where a high-visibility, long-life flashing light element is required.

Key Features

• Red flashing-effect signal light element (LED) from the SIRIUS 8WD44 product range
• Integrated LED light source—no separate lamp required
• Rated for 24 V AC/DC supply voltage
• Diameter 70 mm—fits standard signalling column modules
• Bayonet locking mechanism for fast, secure installation
• High protection rating: IP 65 for outdoor or harsh environments
• Designed for long service life (LED lifetime approx. 100,000 hours)

Technical Specifications

• Product Series: SIRIUS 8WD44
• Article Number: 8WD4420-5BB
• Operating Voltage: 24 V AC/DC
• Rated Current (max): Approx. 30 mA
• Light Source: LED
• Flashing Frequency: ~1 Hz
• Light Intensity: 0.79 cd (typical)
• Diameter: 70 mm
• Height: Approx. 65.5 mm
• Protection Class: IP 65 (mounted)
• Ambient Operating Temperature: –20 °C … +50 °C

Compliance & Certifications

• Designed and manufactured by Siemens for industrial signal-column applications
• Conforms to industrial signalling-element standards for LED modules and lighting effects

Applications

Ideal for mounting in signalling towers, machine-control panels, switchgear stations, conveyor systems and automated installations where a high-visibility red flashing light is required to indicate operational status, alarms or critical fault conditions. Suitable for indoor and outdoor use in demanding industrial environments.