Description
Product Name: 801-ASC21 Allen Bradley Programmable controller
Product details:
The 801-ASC21 is part of the Allen-Bradley series of general-purpose limit switches. These devices are used in industrial control systems to sense the presence or absence of an object, or to monitor the movement of a machine part.
Key Features:
- Housing Style: NEMA 2 (General Purpose)
- Actuator Type: Roller Lever
- Contact Configuration: Typically listed as 1 Normally Open (NO) and 3 Normally Closed (NC), often denoted as 1NO & 3NC. (Note: The search result indicates this configuration, which is the electrical output of the switch when operated).
- Operation: Snap Action, Spring Return
- Enclosure: NEMA 1 (Often listed as a feature, though the primary housing style is NEMA 2, which provides basic protection.)
Product Parameters (Specifications)
| Parameter | Value/Description |
| Series | 801 (General Purpose Limit Switches) |
| Actuator | Roller Lever |
| Contact Configuration | 1 Normally Open (NO) & 3 Normally Closed (NC) |
| Operating Force | Approximately 22.25N (5.0 lbs) (This is the force required to operate the switch) |
| Operation | Snap Action Spring Return |
| Enclosure Rating | NEMA 1 (or relevant IP/NEMA rating for the NEMA 2 housing style, often used indoors for basic protection) |
| Voltage/Current Rating | Specific electrical ratings (e.g., maximum AC/DC voltage and current) are crucial but require consulting the full datasheet. |
Product Advantages
- Versatile Application: Suitable for a wide range of industrial sensing applications due to its general-purpose design.
- Reliable Sensing: Utilizes a Snap Action mechanism, which provides quick and decisive switching, reducing contact arcing and extending electrical life.
- Durable Actuator: The Roller Lever is robust and suitable for applications involving moving parts that need to operate the switch.
- Spring Return: Ensures the switch automatically returns to its initial state when the actuating force is removed.
- Established Design: Being an Allen-Bradley product, it is manufactured to high industrial quality standards, ensuring long-term reliability and compatibility within existing control systems.
Precautions (Important Considerations)
- Electrical Rating: Always ensure the operating voltage and current do not exceed the switch’s specified electrical ratings to prevent damage or failure.
- Environmental Protection: While the NEMA 1/NEMA 2 enclosure offers basic protection, it is generally not suitable for wash-down, outdoor use, or environments with excessive dust, oil, or corrosive materials. Use higher-rated enclosures (like NEMA 4, 4X, or IP67) for harsh conditions.
- Mounting and Adjustment: Mount the switch securely and ensure the roller lever actuator is properly aligned with the object or machine part to be detected to guarantee reliable operation and prevent mechanical wear.
- Wiring: Follow all local electrical codes and the manufacturer’s wiring diagrams. Ensure proper grounding.
Product Applications
The Allen-Bradley 801-ASC21 limit switch is commonly used in various industrial and manufacturing settings, including:
- Position Sensing: Detecting the end-of-travel limits for machine tools, conveyors, and linear actuators.
- Conveyor Systems: Monitoring the presence or position of packages, products, or trolleys on a conveyor belt.
- Safety Interlocks: Serving as a safety device to ensure machine guards or doors are closed before equipment can operate.
- Indexing and Counting: Used in simple mechanisms for counting cycles or controlling the steps of a process.
- Automated Machinery: Providing feedback on the status or position of mechanical components within automated assembly lines.
Advantages: Foxboro, OVATION, TRICONEX, Allen-Bradley, ABB, Motorola, Siemens Moore, Ge Fanuc, Woodward, Bently Nevada and other major import brands!
We have the same series of models in stock. If you don’t find the model you need, please contact us and we will provide you with an official quotation！
Colour：new Warranty: 12 months
Lead Time：3-day working day Country of origin: Sweden
Price: Please contact us Product weight：0.515kg
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