Base module, color black, range: SL signal towers, connection technology: push-in terminals, mounting type: for horizontal mounting, features: base with internal (inside) mounting holes, including cover, number of modules: max. 5 modules, can be used for: SL4-L-., SL4-BL-., SL4-FL-., SL4-AP-..., connection to SmartWire-DT: no, standards and regulations: IEC/EN 60947-5-1, protection class IEC: IP66, IEC/EN 60529, protection class UL: Type 1