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The part number **M2AS1-A322-R2/CE** typically refers to a specialized industrial component, most commonly identified as a **Limit Switch** or **Safety Switch** manufactured by **Pizzato Elettrica**.
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## 1. Technical Specifications Table
The following table breaks down the core technical parameters of this electronic assembly:
| Feature | Specification |
| :--- | :--- |
| **Component Type** | Snap-action Limit Switch / Safety Switch |
| **Contact Block** | 1NO (Normally Open) + 1NC (Normally Closed) |
| **Actuator Type** | Roller lever or plunger (depends on suffix configuration) |
| **Connection Type** | M12 Connector (integrated) |
| **Protection Class** | IP67 (Dust-tight, waterproof) |
| **Housing Material** | Technopolymer (Reinforced glass fiber) |
| **Certification** | CE, UL, CSA |
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## 2. Component Breakdown
The part number is encoded with specific electronic and mechanical meanings:
### Housing and Structure
* **M2 Series:** This designates the physical series of the switch, usually indicating a compact modular design suitable for machinery automation.
* **AS1:** Indicates the specific casing style and mounting orientation.
### Contacts and Logic
* **A322:** This refers to the **Contact Block**.
* **Snap Action:** The switch triggers at a precise point regardless of the actuation speed.
* **Configuration:** Typically a 1NO+1NC setup where the NC (Normally Closed) contact is "Positive Opening," making it suitable for safety applications.
### Connection and Compliance
* **R2:** This suffix usually identifies the specific wiring or connector layout. In this model, it signifies a **4-pole M12 integrated connector** located at the bottom of the unit.
* **CE:** Marks compliance with European Union safety, health, and environmental protection requirements.
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## 3. Operating Principles
1. **Mechanical Input:** A mechanical force (from a machine arm or door) moves the actuator.
2. **Contact Transfer:** The internal spring mechanism "snaps," causing the NC contact to open and the NO contact to close simultaneously.
3. **Signal Transmission:** The electrical signal is sent through the M12 connector pins to a PLC (Programmable Logic Controller) or a safety relay to stop or start a process.
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## 4. Pinout Configuration (Standard M12)
If using the integrated R2 connector, the typical wiring is:
| Pin Number | Contact Type | Function |
| :--- | :--- | :--- |
| **Pin 1** | NC | Input |
| **Pin 2** | NC | Output |
| **Pin 3** | NO | Input |
| **Pin 4** | NO | Output |
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- ⤷
What is the maximum voltage and current rating for the A322 contact block?
- ⤷ Does this model support redundant safety circuit wiring?
- ⤷ What is the mechanical lifespan (number of operations) for the M2 series switches?