Siemens Continuous light element base w/out element, yellow, 12-230VAC/DC Part number 8WD4400-1AD

Product Overview

The Siemens 8WD4400-1AD is a continuous-light signal module from the 8WD44 signalling-column series with a 70 mm diameter housing. It is designed for industrial and machine-control panels where clear, steady visual indication is required.

Key Features

• Continuous-light signal module within the 8WD44 70 mm signalling-column family
• Large Ø 70 mm diameter housing for high visibility in industrial environments
• Designed for AC and/or DC operation across a broad voltage range (12-230 V) typical of the 8WD4400 series
• Modular column-system compatibility allowing flexible assembly in machine-control enclosures
• Robust design with high ingress-protection (IP65 for this family) and durable material construction

Technical Specifications

• Product Series: Siemens 8WD44 signalling columns (70 mm diameter)
• Article Number: 8WD4400-1AD
• Function: Continuous-light module (optical indication)
• Diameter (Outer): 70 mm (typical for 8WD4400 family)
• Rated Operating Voltage (AC/DC): 12 … 230 V (AC 50/60 Hz and DC) (typical for the 8WD4400-1AB/‐1AC variants)
• Socket/Base Type: BA 15d (for light-element versions in the family)
• Protection Class (Front): IP65
• Ambient Operating Temperature: –20 °C to +60 °C (for continuous-light elements per data sheet)
• Net Weight (Approx.): ~0.07 kg (typical for 8WD4400-1AB variant)

Compliance & Certifications

• Complies with IEC/EN standards for signalling-column elements in industrial automation
• RoHS-compliant and designed for machine-control applications and industrial environments

Applications

The 8WD4400-1AD is ideal for use in industrial machine control panels, signalling towers, automation enclosures and production systems where steady light indication is required. It provides clear visual feedback in demanding environments and supports modular signal-tower assemblies.