Product Description
Benefits & Applications
The Eaton M22-K10 is a durable 1NO (Normally Open) auxiliary contact block designed for use with Eaton’s modular M22 pushbuttons, selector switches, and operator devices. Known for its long mechanical life, dependable switching performance, and fast installation, the M22-K10 is widely used in industrial control panels, automation systems, and OEM machinery.
Its compact, snap-on design makes it easy to expand control logic or replace worn auxiliary contacts without modifying the main operator or wiring layout. The M22-K10 is ideal for signaling, start/energize functions, PLC inputs, and general-purpose control circuits.
Typical Applications
- PLC input and control signaling
- Start buttons, activation circuits, and interlock logic
- Industrial automation and machine control
- HVAC and commercial building control systems
- OEM machinery and operator station panels
Technical Advantages
- 1 Normally Open (1NO) auxiliary contact
- Tool-free, quick-mounting design reduces installation time
- High reliability for low-voltage control circuits
- Long electrical and mechanical endurance
- Modular design allows stacking multiple contact blocks
- Compatible with all Eaton M22 pushbutton and selector switch operators
Compatibility Notes
The M22-K10 is part of Eaton’s M22 modular operator system and snaps onto the back of:
- M22 pushbuttons (illuminated and non-illuminated)
- M22 selector and key switches
- M22 emergency stop and maintained operators
- M22 mounting bases and adapter blocks
If your control station uses Eaton M22 operators and requires a 1NO auxiliary contact, the M22-K10 is the correct OEM accessory.
Frequently Asked Questions
Q: What does “1NO” mean on the M22-K10?
“1NO” means the auxiliary contact is Normally Open. It closes only when the pushbutton or operator is activated. Ideal for start, energize, and signal functions.
Q: What Eaton devices is the M22-K10 compatible with?
It is fully compatible with the entire M22 pushbutton and operator line, including selector switches, E-stops, and illuminated operators.
Q: Can I combine the M22-K10 with additional contacts?
Yes. Multiple M22 contact blocks can be stacked to create NO/NC combinations for more complex control logic.
Q: Is the M22-K10 suitable for PLC inputs?
Yes. It provides clean, reliable low-level switching suitable for PLC digital inputs and low-voltage control circuits.
Q: What is the difference between M22-K10 and M22-K01?
The M22-K10 is 1 Normally Open (1NO), while the M22-K01 is 1 Normally Closed (1NC). They are often used together for start/stop logic or interlocking.
