Haas NGC I/O Kit - Relays & Terminal Plugs

This Haas NGC I/O Kit provides a complete relay and terminal plug solution for Haas machines built after 2019, enabling M-code control of external devices. With this kit installed, any Haas machine using the Next Generation Control (NGC) system can directly drive solenoids, pumps, lights, or other accessories from the CNC via Haas user relays and terminal block plugs.

This I/O kit is compatible across the full Haas NGC lineup (post-2019), not just the UMC series. Whether you own a VF, UMC, ST, or any other NGC Haas machine produced after 2019, this kit offers plug-and-play integration and enables M-code driven control.

The relay and terminal plug hardware mirror Haas part numbers 34-3490B and 34-349OB, assuring compatibility with the Haas I/O PCB. The kit includes the relays, terminal plugs, and necessary connectors to mount directly onto the I/O board in the lower electrical enclosure. This kit is equivalent to to Part Number 93-2889 from Haas Automation at significantly lower cost.

Features & Benefits

• Supports all Haas machines built after 2019 with NGC control
• Brings Haas relay kit functionality to machines lacking relays
• Plug in Haas terminal plugs directly to I/O board (34-3490B / 34-349OB format)
• Enables Haas M-code control (M21, M22, etc.) of external devices
• Provides a cost-effective upgrade path for Haas I/O systems without full conversions
• Includes mapped relay layout for easy installation

Installation & Use Notes

Most Haas machines shipped since 2019 come with a bare I/O board without user relays, located behind a lower-left cover in the electrical cabinet. If relays are already populated (or if the 8M Relay option was factory installed), this kit won’t be needed. Gimbel Automation

Installation is straightforward:

1. Open the electrical cabinet lower-left panel and check the I/O PCB for preinstalled relays. Gimbel Automation

2. Insert the relays and terminal plugs from this kit in the correct orientation, matching the layout diagram. Gimbel Automation

3. Use commands like M21, M22, M25 first, as those are easiest to implement in NGC systems. Gimbel Automation

Applications

• Drive external solenoids, air valves, coolant pumps, lamps, or sensors via Haas M-code relays
• Add I/O capability to field machines not configured with relays
• Automate auxiliary systems on post-2019 Haas machines using standard PCBs
• Enable advanced job-shop automation without expensive control upgrades

Enable your Haas to do more—this kit transforms your machine into a flexible, M-code–driven automation hub. Order the Haas NGC I/O Kit today and unlock the potential of control that Haas omitted.

Note that Haas now defaults to use M23 and M24 relays to their robot package -- use M59 PXXX and M69 PXXX, where X is the relay P code as per the Haas manual.

*Gimbel Automation is not associated with Haas Automation.