Siemens Key for Key Switch, Lock Number 455 3SU19500FC800AA0

In industrial control panels and automation systems, key-operated switches provide a simple way to restrict access to critical functions. This Siemens key is the matching actuator for SIRIUS ACT 3SU1 key-operated switches with lock number 455. It is used by maintenance and operations personnel who need to enable or disable specific control sequences, and it ensures that only authorized staff can change the switch position.

Key specifications

• Product type: Key
• Lock number: 455
• Material: Metal
• Colour: Silver / Metallic
• Compatibility: Siemens SIRIUS ACT 3SU1 key-operated switches
• Series: SIRIUS ACT
• Component type: Accessory / Spare part
• Application: Industrial automation, control panels
• Design: Standard key
• Usage: Actuator key
• Number of keys per pack: 1

Why choose it

The key is made from metal for durability in demanding industrial environments. Its lock number 455 corresponds to a specific key profile, allowing you to maintain a consistent access system across multiple switches. As a genuine Siemens accessory, it is designed to fit precisely with SIRIUS ACT devices, ensuring reliable operation and long service life.

Ideal use cases

• Replacing a lost or worn key for a SIRIUS ACT key-operated switch
• Equipping multiple switches with the same lock number for uniform access control
• Stocking spare keys for maintenance teams in manufacturing facilities

Good to know

This key is a single unit and is intended for use with Siemens SIRIUS ACT 3SU1 series command devices. It is a simple mechanical component that requires no special tools for insertion or removal.