Siemens Integrated LED module, spring, green, 24VAC/DC

Product Overview

The Siemens 3SU1401-2BB40-3AA0 is an LED illuminating unit from the SIRIUS ACT 3SU14 series, designed for 22 mm operator devices. This module provides bright green LED illumination and is intended for use with pushbuttons, indicator devices, and signalling elements. With a wide 24–230 V AC/DC input range, it offers exceptional flexibility for integration into various industrial control panels and machine interfaces. Its durable design ensures stable, long-term illumination in demanding industrial environments.

Key Features

• 22 mm LED light module for SIRIUS ACT operator devices
• Green illumination for clear status indication
• Wide supply voltage range: 24–230 V AC/DC
• Integrated LED technology for long service life
• Front-mounting design for easy installation
• High vibration and shock resistance for industrial applications
• Spring-type terminals for fast and secure wiring
• Compact, low-profile form suitable for dense control panels
• Stable illumination even under voltage fluctuations

Technical Specifications

• Article Number: 3SU1401-2BB40-3AA0
• Series: Siemens SIRIUS ACT 3SU14
• Module Type: LED illuminating unit / light block
• Mounting Diameter: 22 mm (front-mounted)
• Illumination Colour: Green
• Operating Voltage: 24–230 V AC/DC
• Connection Type: Spring-type terminals
• Operating Temperature: Typically –25 °C to +70 °C
• LED Type: Integrated long-life LED
• Housing Style: Compact, modular design for use with SIRIUS ACT actuators and holders
• Weight: Lightweight for space-efficient panel layout

Compliance & Certifications

• Manufactured according to Siemens industrial quality standards
• Meets international requirements for signalling and operator components
• Part of the SIRIUS ACT modular control-panel system for global compatibility

Applications

The Siemens 3SU1401-2BB40-3AA0 is ideal for use in machine control panels, operator stations, signalling towers, and industrial automation systems requiring clear green illumination. Typical applications include start/stop indicators, machine-ready signals, fault/reset signalling, and general operator feedback in manufacturing, processing, utilities, and equipment control environments. Its wide voltage range and robust design make it suitable for both new installations and retrofit projects.