Product Description
Benefits & Applications
The Eaton M22-K01 is a high-quality 1NC (Normally Closed) contact block designed for use with Eaton’s popular M22 modular pushbutton and selector switch series. Known for its durability, secure mounting design, and excellent electrical reliability, the M22-K01 is widely used in industrial control panels, OEM machinery, and automation systems. Its compact size and snap-on latching system make it fast to install and ideal for modern control circuits requiring dependable auxiliary signaling.
Engineered for long mechanical life, this contact block delivers consistent performance in demanding environments, including manufacturing plants, material-handling systems, and commercial building automation. Whether you’re adding auxiliary functionality or replacing a worn contact module, the M22-K01 provides the reliable operation Eaton’s M22 series is known for.
Typical Applications
- Auxiliary signaling in control panels and PLC circuits
- E-stop buttons, selector switches, and operator stations
- Motor control circuits and interlock logic
- Industrial automation and process machinery
- Building management and HVAC control systems
Technical Advantages
- 1 Normally Closed (1NC) contact for safety and interlock applications
- Tool-free, quick-mount design for rapid installation
- High mechanical endurance for frequent operation
- Positive-opening safety contact mechanism
- Part of Eaton’s modular M22 system for customizable operator stations
- Compact size ideal for tight control cabinet layouts
Compatibility Notes
The M22-K01 is part of Eaton’s M22 modular operator platform and is compatible with:
- M22 pushbuttons (non-illuminated and illuminated)
- M22 selector switches and key switches
- M22 emergency stop operators
- M22 contact block adapters and expansion modules
If your operator station uses Eaton M22 devices and requires a 1NC auxiliary contact, the M22-K01 is the correct OEM match.
Frequently Asked Questions
Q: What does “1NC” mean for the M22-K01?
“1NC” means the contact is normally closed — it opens when the operator (button or switch) is activated. This is commonly used for safety, interlocks, and stop functions.
Q: Which Eaton products is the M22-K01 compatible with?
It snaps directly onto Eaton M22 pushbuttons, selector switches, key switches, and E-stop devices.
Q: Can I stack multiple M22 contact blocks?
Yes. The M22 system supports stacking multiple auxiliary contacts to build custom NO/NC configurations.
Q: Is the M22-K01 suitable for PLC input circuits?
Yes. It provides dependable low-level signaling suitable for PLC I/O and low-voltage control circuits.
Q: Does the M22-K01 include positive opening operation?
Yes. Eaton M22 NC contacts include a positive-opening mechanism for safety-related circuits.
