Overview
The Siemens 3SU1100-2BL60-1NA0 is a modular, illuminable selector switch from the SIRIUS ACT 3SU1 product line. This 22mm latching (stay-put) switch features 3 distinct positions with a 2×45° actuator angle (–45°/0°/+45°), making it ideal for applications requiring maintained operator selection. The unit comes complete with holder, short black handle with white insert, and plastic front ring bezel, delivered as a plug-and-play assembly.
Key Features
- 3-Position Latching Operation: Maintained switch positions (I-O-II) with precise 2×45° angular detents
- 2 NO Contact Blocks: Two normally-open circuits rated for reliable electrical switching in control circuits
- Illuminable Design: Supports optional integrated illumination for operator indication and safety
- 22mm Modular Construction: Compact round profile fits standard industrial enclosure cutouts; plastic housing and bezel
- Screw-Clamp Terminals: Secure, tool-free field wiring without soldering
- IP66/IP67/IP69K Rated: Washdown and harsh-environment protection
Technical Specifications
- Mounting Diameter: 22 mm (flush panel mount)
- Switch Positions: 3 (I-O-II with latching)
- Actuator Type: Short selector handle, 2×45° angle (10:30h / 12h / 13:30h)
- Contact Configuration: 2×1 NO (two normally-open blocks)
- Illumination: Illuminable (optional light source available)
- Terminal Type: Screw-clamp connections
- Enclosure: Plastic body with white plastic bezel
- Protection Rating: IP66, IP67, IP69K
- Series: SIRIUS ACT 3SU1
- Contact Modules: 3SU1400-1AA10-1BA0 (supplied at each position)
- Holder: 3SU1550-0AA10-0AA0
- Supplied Actuator: 3SU1002-2BL60-0AA0
Typical Applications
The Siemens 3SU1100-2BL60-1NA0 is commonly deployed in:
- Mode-select controls (Auto/Manual/Off, Forward/Stop/Reverse)
- Industrial machinery start/stop and direction control
- Pump and fan speed selection circuits
- Production line equipment control panels
- Automotive and food-processing automation systems
- OEM panel-builder applications requiring modular switch architecture
Compatibility & Replacements
Compatible With
- Standard 22 mm industrial pushbutton/selector cutout openings
- SIRIUS ACT modular platform (interchangeable contact blocks and actuators)
- Standard industrial control voltage circuits (low-voltage logic and 24 VDC systems)
- Screw-terminal panel wiring practices
- UL/CSA industrial machinery control standards
Replaces / Drop-In Replacement For
The 3SU1100-2BL60-1NA0 directly replaces other 22mm SIRIUS ACT 3 position selectors with equivalent contact specifications. Verify the exact contact module part number and actuator style against your original equipment documentation before ordering. Verify compatibility with your system integrator before ordering.
Works With
- SIRIUS ACT modular contact modules (3SU1400 series)
- SIRIUS ACT modular actuators and handles (3SU1002, 3SU1000 series)
- SIRIUS ACT modular holders and bezels
- Standard industrial PLC and relay logic control circuits
- 24 VDC and low-voltage AC control systems




