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    ABB-Welcome M2300 — System Controller Specification Sheet

    August 31, 2026 1 min read

    Specification sheet for the ABB-Welcome M2300 System Controller — the power source and communication hub for ABB door entry systems.

    💾 Download Original PDF
    Full text manual (for reference)

    Overview

    The ABB-Welcome™ M2300 System Controller serves as the brains and primary power source of the door entry system. It manages communication between all system components — outdoor stations, indoor stations, guard units, and other system devices — and can also serve as an auxiliary BUS power supply.

    Key Features

    • Two working modes:
      • All On — all video indoor stations in a single apartment receive video calls from the outdoor station.
      • One On — only the master video indoor station receives video calls from the outdoor station.
    • Can serve as an auxiliary power supply when connected to a gateway in certain modes.
    • 1 LED for normal working condition indication.
    • Equipped with overheat, short-circuit, and lightning protection.

    Control Buttons

    Number Function
    1 Bus in/out
    2 Operating mode settings
    3 Operating status indicating LED
    4 Power supply

    Specifications

    Operating temperature -13°F to +131°F
    Single-wire clamps 2 x 0.28 mm² – 2 x 1 mm²
    Fine-wire clamps 2 x 0.28 mm² – 2 x 1 mm²
    Main voltage 100–240V, 50/60Hz, 1.0A
    Bus voltage (a, b) 28 ± 2VDC, 1.2A
    Mount DIN rail mounted (DIN EN 50022)
    Flammability UL 94 V0
    Product dimensions 3.54" x 5.67" x 2.56"

    Contact / Support

    ABB Low Voltage Products, 8155 T&B Boulevard, Memphis, TN 38125 — www.abb.us/lowvoltage
    USA Technical Support: 888-862-3289 | Customer Service: 888-862-3290 (7:00 a.m. – 5:30 p.m. CST, Monday – Friday)