ABB – M2301 Mini‑System Controller (2TMF210161W0002) – DIN‑Rail Welcome Door Ent

The ABB M2301 Mini-System Controller serves as the central brain and power hub (MDRC) for ABB Welcome™ door entry systems. Mounted on standard DIN rail, it provides 28 VDC bus power (0.65 A) and manages communication between indoor and outdoor stations. Ideal for single-family homes or small residential setups.