Product overview A compact DIN rail mount base element designed for use with 2wire signal modules. Provides secure mounting, reliable electrical connections, and clear specifications for integration into control and signal systems. Key benefits Simple DIN rail installation for fast, repeatable mounting in control panels and enclosure racks. Compact footprint (52 mm x 17.7 mm x 90 mm) saves panel space and allows dense packing of multiple channels. Rated for moderate voltages and currents: supports 28 VAC or 40 VDC at up to 300 mA, making it suitable for many signal and lowpower relay applications. Wide base operating temperature range from 40 C to +85 C for longterm reliability in demanding environments. Compatible with control modules that use 230 VAC or 220 VDC control voltage and have a low input current of 3.5 mA; compatible modules typically specify an operating temperature range of 25 C to +60 C. Clear electrical limits reduce integration guesswork and help prevent overloading. What it does and how it helps Provides a dedicated mounting and termination platform for 2wire signal modules, keeping wiring organized and serviceable. Ensures each module has defined voltage and current limits, aiding safe system design and component selection. Compact size and DIN rail compatibility simplify retrofits and installations by using standard rail systems. Important attributes Function: Base element for use with 2wire signal modules, intended to hold and connect compatible control or signal modules on DIN rail. Compatibility: For modules requiring 2wire signal connection; compatible module control voltage range 230 VAC and 220 VDC with input current 3.5 mA (module operating temperature 25 C to +60 C). Electrical ratings: Voltage rating 28 VAC and 40 VDC; current rating 300 mA. Mechanical: Mounting style DIN rail; dimensions length 52 mm, width 17.7 mm, height 90 mm. Environmental: Base element operating temperature 40 C to +85 C. Practical use scenarios 1) Industrial signal interface: Mount multiple 2wire signal modules on a DIN rail in a factory control cabinet to centralize signal wiring from field sensors and interface them to a PLC or monitoring system. 2) Building automation retrofit: Use the base to add 2wire input or output modules into existing electrical panels where space is limited and reliable DIN rail mounting is required. 3) Alarm and notification systems: Install base elements for 2wire alarm modules where module control operates from 230 VAC or 220 VDC sources with low input current, keeping wiring neat and serviceable. Technical summary Type: Base element for use with 2wire signal Mounting style: DIN rail Voltage rating: 28 VAC, 40 VDC Current rating: 300 mA Base element operating temperature: 40 C to +85 C Dimensions: 52 mm (L) x 17.7 mm (W) x 90 mm (H) Compatible control voltage range (for matching modules): 230 VAC, 220 VDC Compatible module input current: 3.5 mA Compatible module operating temperature range: 25 C to +60 C Choose this base element when you need a spaceefficient, clearly specified DIN rail mounting solution for 2wire signal modules that simplifies installation and supports reliable operation within the stated electrical and temperature limits.