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Siemens 3SU1050-1HG20-0AA0 22mm Red E-Stop Pushbutton with Lock 455

Siemens 22mm red E-Stop pushbutton, 40mm, with RONIS lock 455.

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ManufacturerSiemens

Part number3SU1050-1HG20-0AA0

Actuator type EMERGENCY STOP mushroom pushbutton

Size 40 mm

Diameter 22 mm

Color Red

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22mm mounting diameter EMERGENCY STOP function Metal construction Shiny red finish 40mm actuator size RONIS lock with 455 Key-operated release Compliant with EN ISO 13850

Product description

The Siemens 3SU1050-1HG20-0AA0 is a 22mm round metal EMERGENCY STOP mushroom pushbutton, 40mm in size, with a shiny red finish. This model features positive latching and incorporates a RONIS lock with lock number 455, requiring a key for release, in compliance with EN ISO 13850.

This variant is designed for safety-critical applications where an additional layer of security is needed to prevent accidental or unauthorized resets of emergency stop circuits. It is commonly used in high-risk industrial environments and automated systems requiring strict safety management.

Stanlo Automation, a veteran-owned distributor specializing in surplus industrial parts, offers the Siemens 3SU1050-1HG20-0AA0. We provide reliable and cost-effective solutions for your industrial safety component needs.

Technical specifications

Actuator type	EMERGENCY STOP mushroom pushbutton
Size	40 mm
Diameter	22 mm
Color	Red
Latching type	Positive latching
Release mechanism	Key-operated release
Lock type	RONIS lock
Lock number	455
Standards	EN ISO 13850, IEC 60947-5-1

Common applications

Industrial machinery

Control panels

Safety circuits

Manufacturing automation

High-risk environments

Key-controlled shutdown systems

Compatible systems

Siemens 3SU1 enclosures, contact blocks, and accessories; requires the specific key for lock number 455 for release

Also known as

Siemens 3SU1 lock E-stop 455 3SU1050 RONIS lock button Red E-stop pushbutton key release

Replaces / compatible with

This part is a specialized safety component for controlled access to emergency stop functions. It can replace other Siemens 3SU1 E-stop buttons with similar locking mechanisms or be integrated into new safety designs.

Technical note

Expert tip

The specific RONIS lock number 455 is crucial for key management in facilities with multiple locked safety devices, ensuring proper access control.

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Frequently asked questions

How does the RONIS lock number 455 affect the operation of the Siemens 3SU1050-1HG20-0AA0?

The RONIS lock number 455 on the Siemens 3SU1050-1HG20-0AA0 is a specific key identifier. It ensures that only the correct key can release the emergency stop pushbutton, providing a higher level of security for safety circuit resets in industrial settings.