Siemens Key-operated switch, 2pos, round, plastic, 22mm Part number 3SU1000-4FC01-0AA0

Product Overview

The Siemens 3SU1000-4FC01-0AA0 is a SIRIUS ACT key-operated switch head designed for a 22 mm round mounting cut-out. It features a durable black and red plastic front, two switch positions (O–I), and is supplied with two keys (lock number 73037). This switch head provides secure, key-controlled operation for industrial machines and control panels within the modular 3SU1 operator device system.

Key Features

• Key-operated switch head for SIRIUS ACT
• Black front ring with red key actuator
• 22 mm round mounting cut-out
• Two switch positions: O (Off) and I (On)
• Lock number 73037 with two keys included
• Industrial-grade plastic construction for durability
• Compatible with all SIRIUS ACT 3SU1 components

Technical Specifications

• Article Number: 3SU1000-4FC01-0AA0
• Series: SIRIUS ACT 3SU1
• Mounting Hole Diameter: 22 mm
• Switch Positions: 2 (O–I)
• Front Colours: Black (ring) and Red (actuator)
• Front Material: Plastic
• Lock Number: 73037
• Keys Supplied: 2
• Protection Rating: High IP protection when assembled with matching SIRIUS ACT elements

Compliance & Certifications

• Manufactured to Siemens SIRIUS ACT quality standards
• Suitable for industrial control and signalling environments

Applications

Designed for secure key-controlled switching functions in machinery, control stations, and automation panels. Common uses include mode selection, restricted-access activation, lock-out functions, and safety-related operator control points in industrial systems.