The 6EP1336-2BA10: Output is safety extra-low voltage (SELV) per EN 60950-1 and EN 50178, meaning the 24 V DC rail is isolated from the mains and safe to touch under normal conditions. Galvanic isolation between input and output is built in, so it can supply control circuits, PLCs, sensors, and DC motor brakes without a separate isolation transformer.
The 20 A rated output (24 A with a 45 °C ceiling) sets the load budget. If your BOM calls for 18 A of 24 V DC devices — contactors, valve coils, I/O racks — this supply has headroom. The derating above 60 °C matters if the panel sits near a hot machine or in a non-conditioned enclosure; at 70 °C ambient, the usable current drops to roughly 14 A (5 %/K × 10 K below 20 A). Input voltage is auto-ranging: wire it for 120 V or 230 V AC without a jumper. The recommended upstream protection is a 10 A C-curve MCB (3RV2411-1JA10 at 120 V, 3RV2411-1FA10 at 230 V) or a 10 A circuit breaker. The internal fuse is a non-accessible T 10 A, so the external breaker is your primary overcurrent device. I²t value is 10 A²·s maximum — this is the let-through energy the supply can withstand during a fault. It helps the panel designer coordinate with downstream fuses or breakers so a short on a 24 V branch clears without tripping the upstream supply. MTBF at 40 °C is 1,778,916 hours — roughly 200 years of continuous operation. That figure assumes the supply is loaded within its rating and convection-cooled in a clean environment. It is a reliability benchmark for 24/7 installations like conveyor lines or process skids.
No drilling, no backplate — it clips into the standard panel profile. Input terminals (, N, PE) accept 0.2…4 mm² single-core or finely stranded wire via screw clamps. Output terminals (+, -) are duplicated: two screw terminals each for the same wire range, which simplifies daisy-chaining to a distribution block or feeding two loads without a separate terminal strip.
The 6EP1336-2BA10 carries cULus listing under UL 508 and CSA C22.2 No. 107.1 (File E197259), plus cCSAus to UL 60950-1 / CSA C22.2 No. 60950-1 for ITE applications. CE marking covers the EU low-voltage and EMC directives. EAC approval covers the Eurasian Customs Union. DNV GL marine type approval is also on file, so it is accepted for shipboard control panels and offshore installations. It is not ATEX or IECEx certified, and it does not carry FM or UL hazardous-location approval. If the panel sits in a classified area (Zone 2, Class I Div 2), this supply must be mounted outside the hazardous zone or in an approved enclosure. NEC Class 2 is not claimed, so the output circuit does not automatically qualify as limited-energy under the US National Electrical Code. Downstream overcurrent protection on the 24 V side may be required depending on the load wiring.