Siemens Key-operated switch BKS, round, plastic, O-I, 22mm Part number 3SU1000-5RF01-0AA0

Product Overview

The Siemens 3SU1000-5RF01-0AA0 is a key-operated selector switch from the SIRIUS ACT 3SU1 series. Designed for 22 mm panel mounting, it features a robust key actuator with two switch positions (O–I). The key can be removed in the OFF position, providing secure and controlled access to machine or system functions. Its durable construction makes it suitable for industrial control panels, automation systems, and machinery requiring restricted operation.

Key Features

• Key-operated selector switch, 22 mm mounting diameter
• Two switch positions: O (Off) / I (On)
• Key removable in position O — prevents unauthorized operation
• Actuator: metal key mechanism with plastic front ring (black)
• 90° actuation angle
• Compatible with SIRIUS ACT modular contact blocks
• High mechanical durability for industrial use
• Front protection rating up to IP66 / IP67 / IP69K when installed correctly

Technical Specifications

• Article Number: 3SU1000-5RF01-0AA0
• Product Series: SIRIUS ACT 3SU1
• Switching Positions: 2 (O–I)
• Actuator Type: Key-operated selector, metal/plastic construction
• Front Ring Material/Colour: Plastic, black
• Actuation Angle: 90° clockwise
• Key Removal Position: Position O (Off)
• Mechanical Service Life: approx. 1,000,000 switching cycles
• Mounting Cutout: 22.3 mm
• Protection Rating (Front): IP66 / IP67 / IP69K
• Operating Temperature Range: –25 °C … +70 °C

Compliance & Certifications

• Designed to IEC/EN standards for industrial control and operator devices
• Part of the Siemens SIRIUS ACT modular command and signalling device system
• Suitable for industrial, machinery, and automation environments

Applications

Ideal for secure operation in control panels and machine interfaces, the 3SU1000-5RF01-0AA0 is used where key-controlled access is required. Typical applications include machine enable/disable functions, mode selection (e.g., maintenance, manual, automatic), safety interlocks, restricted access controls, and system activation in industrial automation and equipment.