Siemens 3SB3500-4LF01 22mm CES Key-Operated Switch
Siemens 3SB3500-4LF01: 22mm metal CES key switch, removable key O+I.
The Siemens 3SB3500-4LF01 is a 22mm metal round actuator for key-operated switches, featuring a CES key lock (LSG 1). It provides latching operation across two switch positions (O-I) and includes two keys. This model allows for key removal in both the 'O' and 'I' positions. It is a phased-out product, with the SIRIUS ACT 3SU1 series being the successor, and the preferred successor type is 3SU1050-5HF11-0AA0 + 3SU1550-0AA10-0AA0.
This key switch is suitable for industrial applications requiring secure and flexible control. The ability to remove the key in either position allows operators to ensure a machine state is maintained or to secure the control panel. Applications include industrial automation, control panels, and safety interlocks where specific key management is needed.
Stanlo Automation, a veteran-owned distributor of surplus industrial automation parts, offers the Siemens 3SB3500-4LF01. We specialize in providing hard-to-find and discontinued components, ensuring you can maintain and repair your existing automation systems with reliable surplus inventory.
| Size | 22mm |
| Actuator Type | Key-Operated Switch |
| Lock Type | CES Lock (LSG 1) |
| Positions | 2 (O-I) |
| Operation | Latching |
| Keys | 2 |
| Key Removal | Positions O + I |
| Holder | Included |
| Product Status | Phased-out |