The SIPLUS S7-400 rack UR1 (6AG1400-1TA11-7AA0) is the conformal-coated, extended-temperature variant of the standard 18-slot aluminum chassis 6ES7400-1TA11-0AA0. Operating range covers -25 to +70 °C.
Environmental and mounting limits
Rack dimensions: 482.5 mm wide, 290 mm tall, 27.5 mm deep. Accepts up to 18 single-width slots, with two redundant power supply slots on the left. The P-bus is integral for backplane communication. Altitude derating: full temperature range at −1 000 m to +2 000 m; reduce ambient by 10 K up to +3 500 m and by 20 K up to +5 000 m. Rated for Type 1 fouling protection, gaseous contamination Level GX (excluding trichlorethylene), salt spray LC3, and oil LB3.