The ABB MT/S8.12.2M Security Terminal provides 8 monitored zones for magnetic contacts, glass-break sensors, and similar intrusion inputs on KNX — with front manual operation.

Sister devices: MT/S4.12.2M (4 zones MDRC), MT/U2.12.2 (2 zones flush). Typical sensors: MRS/W, MC/C1.1. Auxiliary 12 V DC SELV (e.g. NTU/S) supplies detector loops where required.

Key Features

• 8 zones: Supervised security inputs.
• Manual operation: Local control / indication on the device.
• MDRC 4 MW: DIN-rail panel install.
• Stand-alone or panel: Works with or without a central alarm panel.

At a Glance

Specification	Detail
Product type	KNX Security Terminal, MDRC
Order code	MT/S8.12.2M
Product ID	2CDG110110R0011
Zones	8
Manual operation	Yes
Width / form	4 MW
Auxiliary	12 V DC SELV (detector supply)

Technical data, product manual, installation, ETS .knxprod, drawings, EPLAN, and declarations are under Downloads.

Applications

• Intrusion zones: Windows, doors, glass-break on KNX.
• Hotel / apartment: Room security status to BMS.
• Hybrid sites: KNX zones with conventional detectors.

Installation Notes

Mount on a 35 mm DIN rail (4 MW). Connect KNX, 12 V SELV, and zone loops per the connection diagram. Import the matching MT .knxprod from Downloads.