Product Overview
The Siemens 6GK7277-1AA10-0AA0 is a SIMATIC S7-1200 design unmanaged switch providing four 10/100 Mbit/s Ethernet ports. It measures 45 x 100 x 75 mm (W/H/D), mounts on a DIN rail, and draws 0.07 A from a 19.2... 28.8 V DC supply.
Key Ratings & Fit
Rated MTBF of 273 a indicates long service life for continuous operation. Power dissipation is just 1.6 W, so panel thermal management is minimal. Operates from 0 to 60 °C with storage from -40 to +70 °C — suited for typical control cabinets.
Certifications & Compliance
Carries UL 508 and CSA C22.2 No. 142 safety listings for North America. ATEX II 3 G Ex nA II T4 and FM Class 1 Div 2 approvals cover hazardous locations. Marine approvals include DNV, NK, LRS, and BV for vessel installations. EMC: emitted interference per EN 61000-6-4 Class A, immunity per EN 61000-6-2.
Sourcing & Panel Integration
Supply connects via the included 3-pole terminal block. No managed-switch configuration required — it operates transparently. Siemens provides industrial security guidance; integrate into a holistic security concept for the installation. Current lifecycle status means this part is specified into active designs. Submit an RFQ to confirm lead time for your quantity.