Module BL20-4AI-U/I

The BL20-4AI-U/I is a TURCK BL20 series electronic module with 4 analogue inputs, each channel individually selectable for its signal type. The module mounts on a separate BL20 base, and the field signal is galvanically isolated from the module bus via an optocoupler.

• Inputs: 4 analogue inputs, each channel selectable for 0/4...20 mA or 0/10...+10 VDC
• Power: 24 VDC, field supply current ≤20 mA, module bus current ≤50 mA
• Connection: BL20-S6T-SBCSBC (tension-spring) or BL20-S6S-SBCSBC (screw) base
• Environment: IP20, 0...+55°C

The module requires a separately ordered base — it cannot be used without one, and the electronics can be replaced without disconnecting the field wiring, since the connections stay on the base.

Complies with cULus, FM ATEX and IECEx requirements, as well as FM Class I Div. 2 (US and Canada).