Johnson Controls M4-SNC16121-04H — Network Controller
| Part number | M4-SNC16121-04H |
|---|---|
| Brand | Johnson Controls |
| Category | Controller |
| Description | Network Controller |
| Manufacturer | Johnson Controls |
| Product Type | Network Controller |
| Product Line | M4 Controllers |
| Part Number | M4-SNC16121-04H |
| Total I/O | 28 onboard points (Inputs and Outputs) |
| Power Supply | 24 VAC (North America), SELV (Europe) |
| Power Consumption | 38 VA maximum |
| Transmission Speeds (Ethernet) | 100 or 10 Mbps |
| Operating Temperature | 0°C to 50°C |
| Non-Operating Temperature | -40°C to 70°C |
| Maximum MSTP Devices | 50 devices |
| Mounting | DIN rail/flat surface with screws |
| Operating Humidity | 10% 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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