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Siemens 3SU1100-4BF11-1BA0 RONIS Key-Operated Switch

Siemens 3SU1100-4BF11-1BA0 is a 22mm RONIS key-operated switch with 1 NO contact.

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ManufacturerSiemens

Part number3SU1100-4BF11-1BA0

Series SIRIUS ACT

Actuator Type Key-Operated Switch

Diameter 22 mm

Positions 2 (O-I)

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22mm round design Latching operation RONIS lock with 2 keys Key removal in O+I positions 1 NO contact Screw terminals

Product description

The Siemens 3SU1100-4BF11-1BA0 is a 22mm round, plastic key-operated switch from the SIRIUS ACT series, designed for secure access control. This unit features two maintained (latching) switch positions: O and I (10:30h/13:30h). It utilizes a RONIS lock with the number SB30 and includes two keys, with key removal possible in both O and I positions. The switch is equipped with one normally open (NO) contact module and utilizes screw terminals for secure connections. Possible special locks include SB31, 421, and 455.

This key switch is essential for applications requiring authorized access or operational control, preventing unauthorized operation of machinery or systems. It is widely used in industrial settings, control panels, and public access points in sectors like utilities, transportation, and manufacturing.

Stanlo Automation, a veteran-owned distributor of surplus industrial automation parts, offers the Siemens 3SU1100-4BF11-1BA0 key-operated switch. We provide quality surplus components at competitive prices, ensuring your automation systems remain operational and secure. Trust Stanlo Automation for your critical parts needs.

Technical specifications

Series	SIRIUS ACT
Actuator Type	Key-Operated Switch
Diameter	22 mm
Positions	2 (O-I)
Operation	Latching
Lock	RONIS SB30
Keys	2
Contacts	1 NO
Terminals	Screw Terminal
Material	Plastic

Common applications

Industrial security

Access control

Machine safety

Control panel access

Utilities

Transportation

Compatible systems

Designed for use within the Siemens SIRIUS ACT control and signaling system.

Also known as

Siemens 3SU1 RONIS Key Switch SIRIUS ACT SB30 Key Lock 3SU1100 Series Key Operated

Replaces / compatible with

Directly replaces Siemens 3SU1 series key switches with RONIS locks and similar configurations. Compatible with SIRIUS ACT accessories.

Technical note

Expert tip

Key removal in both O and I positions allows for enhanced operational security and management of access.

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Frequently asked questions

What is the lock number for the Siemens 3SU1100-4BF11-1BA0 key switch?

The Siemens 3SU1100-4BF11-1BA0 key-operated switch comes with the RONIS lock number SB30 as standard. Other special lock options like SB31, 421, and 455 may also be available.