Johnson Controls M4-SNC16121-04H — Network Controller

Part numberM4-SNC16121-04H
BrandJohnson Controls
CategoryController
DescriptionNetwork Controller
ManufacturerJohnson Controls
Product TypeNetwork Controller
Product LineM4 Controllers
Part NumberM4-SNC16121-04H
Total I/O28 onboard points (Inputs and Outputs)
Power Supply24 VAC (North America), SELV (Europe)
Power Consumption38 VA maximum
Transmission Speeds (Ethernet)100 or 10 Mbps
Operating Temperature0°C to 50°C
Non-Operating Temperature-40°C to 70°C
Maximum MSTP Devices50 devices
MountingDIN rail/flat surface with screws
Operating Humidity10% to 90% RH (30°C max dew point)

The M4-SNC16121-04H is a robust network controller from Johnson Controls' M4 Controllers series. It offers 28 onboard input and output points, establishing versatile control functionalities for various systems.

Compatibility data for this part number is being verified. Send an RFQ with your equipment model and serial — our suppliers confirm fitment before quoting.

Data compiled from 1 verified source. Last reviewed 2026-08-16.

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