SLS switch 4-pole 3P+N E characteristic 35A for DIN rail mounting. SH switch according to E-DIN0641-21 and dimensional standard DIN 43 880 size 2. SLS in 1- or 3-pole design, single-pole switching, with separate contact position indicator. For direct mounting on DIN rail. The standard multifunctional lock enables the following locking: for the customer to prevent accidental or deliberate switching, for the installer with a padlock when working in the system, for the VNB with a sealing wire, padlock or special key.