Why Choose the Pizzato NAB220AB-SMK Limit Switch?
The Pizzato NAB220AB-SMK is a heavy-duty modular limit switch with M12 connector, engineered for precise position detection and advanced safety switching in industrial automation systems. Part of the robust Pizzato NA series, it offers durable metal construction, long mechanical life and reliable operation in demanding environments.
This model features a 2 NO + 2 NC snap-action contact configuration with positive opening, providing maximum redundancy for safety-critical circuits. It includes a plunger actuator with 90° transmission (AB variant) and a 5-pin M12 connector (SMK), enabling flexible installation and fast, secure wiring.
With its multi-contact design and connector interface, the NAB220AB-SMK is ideal for complex automation systems requiring high reliability, modular wiring and safety compliance.
Key Features
- Pizzato NA series modular limit switch.
- 2 NO + 2 NC snap-action contacts.
- Positive opening operation for safety circuits.
- Plunger actuator with 90° transmission (AB).
- M12 5-pin connector (SMK) for plug-in wiring.
- Metal housing for high durability.
- 20 mm fixing centres for standard mounting.
- Silver contacts for reliable electrical performance.
Maximum Redundancy for Safety Circuits
The 2 NO + 2 NC configuration enables multi-channel monitoring and control, making this switch suitable for high-integrity safety systems and complex automation logic.
Combined with positive opening technology, it ensures reliable mechanical separation of contacts even in fault conditions such as welding, significantly improving machine safety.
Typical Applications
- Machine guarding and safety interlock systems.
- Industrial conveyors and heavy machinery.
- Packaging and automated production lines.
- High-risk machinery requiring redundant contacts.
- OEM automation systems with modular wiring.
