The Siemens 6ES7193-6BP40-0DA1 is a SIMATIC ET 200SP BaseUnit, specifically the BU15-P16+A0+12D/T variant with Type A1 slot, designed to seat a single I/O module and provide the mechanical and electrical interface to the backplane bus and field wiring. It accepts push-in terminals for 0.14 to 2.5 mm² wire (AWG 26 to 14), and establishes a new potential group, meaning it isolates the load group's 24 V DC supply from the left neighbor — useful when you need separate fusing or isolation for a segment of the I/O rack. The rated value is 24 V DC, and the and bus bars are rated for 10 A continuous; the process terminals are limited to 2 A max.
Mounting and wiring
Width is 15 mm on the DIN rail, height 141 mm, depth 35 mm — it's a narrow slice, so you can pack I/O dense but need to plan for the vertical clearance. The push-in terminals accept solid or ferruled stranded wire up to 2.5 mm²; strip length is standard for the spring-cage type. It includes 16 process terminals to the I/O module and provisions for up to 2x5 add-on terminals for auxiliary connections like a temperature sensor or additional power distribution. A system-integrated shield connection is optional. External protection for the 24 V DC supply lines requires a miniature circuit breaker rated 24 V DC / 10 A with type B or C tripping characteristic.
Environmental and isolation
Horizontal installation allows -30 to 60 °C ambient; vertical installation derates the max to 50 °C. Isolation tested at 707 V DC type test. Maximum installation altitude is 5 000 m, with restrictions above 2 000 m per the manual.
Lifecycle status is active — this BaseUnit is current production, so lead times are standard for the ET 200SP family. No obsolescence or last-time-buy concerns on this order code.