Power circuit (AC) up to 690V. Terminal numbering in accordance with EN 50005 and EN 50012. Fixing by clipping onto 35 mm DIN rail EN 50022-35 or by screws. Degree of protection IP20. Screws protected against accidental contact in accordance with VDE 0106. Three coil terminals. Mounting possibilities of front/side instantaneous auxiliary contact blocks, timed auxiliary contact blocks, mechanical latch, transient suppressor block and interface modules.