Why Choose the Pizzato NAB220AC-DMK Limit Switch?
The Pizzato NAB220AC-DMK is a heavy-duty modular limit switch engineered for precise position detection and advanced safety switching in industrial automation systems. As part of the robust Pizzato NA series, it offers long mechanical life, high durability and reliable performance in demanding environments.
This model features a 2 NO + 2 NC snap-action contact configuration with positive opening, providing maximum redundancy for safety-critical applications. It is equipped with a long plunger actuator (AC variant) and an M12 connector interface (DMK), combining extended actuation tolerance with fast, modular installation.
With its rugged metal housing and multi-contact design, the NAB220AC-DMK is particularly suited to industrial systems where safety, redundancy and reliability are essential.
Key Features
- Pizzato NA series modular limit switch.
- 2 NO + 2 NC snap-action contacts (B22 configuration).
- Positive opening operation for safety circuits.
- Long plunger actuator (AC) for increased actuation travel.
- M12 connector (DMK) for plug-and-play installation.
- Metal housing with high resistance to wear and impact.
- IP67 / IP69K protection rating for harsh environments.
- 20 mm fixing centres for standard mounting.
Extended Actuation with Long Plunger
The AC long plunger design provides extended travel, improving tolerance to mechanical misalignment and variation. This makes the switch more reliable in real-world applications where perfect alignment is not always achievable.
Combined with snap-action switching and positive opening contacts, the device ensures fast response and safe disconnection even in fault conditions such as contact welding.
Typical Applications
- Machine guarding and safety interlock systems.
- Industrial conveyors and material handling equipment.
- Packaging and automated production lines.
- High-risk machinery requiring redundant contacts.
- OEM automation systems using M12 connectivity.
