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L21S-21MA1A
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Specification & Description
| Specification | Description |
|---|---|
| Part Number | L21S-21MA1A |
| Alternative Part Number | L21S21MA1A |
| Manufacturer | Sick |
| Series | L21S-2 |
| Type | Single-Beam Photoelectric Safety Switch |
| Sensing Method | Through-beam |
| Sensing Range | 0 to 10 m |
| Supply Voltage | 24 V dc |
| Current Consumption | ≤20 mA |
| Housing Material | Nickel Plated Brass |
| Mounting Type | Screw Mount |
| Output Type | Photoelectric |
| Response Time | 0.2 ms |
| Safety Light Type | Type 2 (IEC 61496-1) |
| Safety Integrity Level | SIL1 (IEC 61508) |
| Performance Level | PL c (EN ISO 13849) |
| Operating Temperature Range | –40 °C to +55 °C |
| Storage Temperature Range | –40 °C to +75 °C |
| Protection Rating | IP67 |
| Vibration Resistance | 5 g, 10 Hz to 55 Hz (IEC 60068-2-6) |
| Shock Resistance | 10 g, 16 ms (IEC 60068-2-29) |
| Connection Type | M12 Connector, 4-pin, straight |
| Light Source | LED, Visible red light |
| Wavelength | 660 nm |
| Beam Angle | ± 5° |
| Dimensions (Diameter x Length) | M18 x 97.7 mm |
| Weight | 67 g |
| Certifications and Classifications | eCl@ss and UNSPSC codes available for product categorisation and standardisation purposes |
The Sick L21S-21MA1A is a high-quality single-beam photoelectric safety switch designed to offer reliable and efficient performance in a variety of industrial applications. This robust sensor is part of the L21S-2 Series and is housed in a durable, nickel-plated brass barrel that ensures longevity even in harsh environments.
With a detection range of 0 to 10 meters, this safety switch is versatile and suitable for a wide range of safety applications. It operates on a 24 V dc supply and has a low current consumption of less than or equal to 20 mA, making it an energy-efficient choice for your machinery.
The switch is easy to install with its screw mount design and has an IP67 rating, signifying complete protection against dust ingress and the ability to withstand temporary immersion in water. This makes it an ideal choice for use in conditions where exposure to the elements is a concern.
The Sick L21S-21MA1A emits visible red light with a wavelength of 660 nm and has an angular reception of ±5°, providing precise detection capabilities. Its quick response time ensures that it can react to safety incidents in a timely manner, contributing to a safer working environment.
This safety switch is also classified as a Type 2 device according to IEC 61496-1 standards and offers a Performance Level c (PL c) according to EN ISO 13849, making it a reliable component in the safety circuit of your equipment.
Overall, the Sick L21S-21MA1A is a dependable and efficient solution for those seeking to enhance the safety of their industrial operations without compromising on performance or durability.
Commonly Asked Questions
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Frequently Asked Questions
What is the operating range of this photoelectric safety switch?
The operating range of the Sick Single-Beam Photoelectric Safety Switch is 0 to 10 meters, providing flexibility for various industrial applications.
Can this safety switch be used in outdoor environments?
Yes, the switch is designed with a robust nickel-plated brass barrel and has an IP67 protection rating, making it suitable for outdoor use as well as in harsh industrial environments.
What type of output does this safety switch provide?
The safety switch provides a solid-state output, ensuring reliable and consistent performance in safety-related applications.
Is this device suitable for high-temperature applications?
The device can operate within a temperature range of –40 °C to +55 °C, making it suitable for a variety of industrial environments, including those with high temperatures.
What is the response time of this safety switch?
The Sick Single-Beam Photoelectric Safety Switch boasts a rapid response time of 0.2 milliseconds, contributing to the overall safety and efficiency of the system it is integrated into.
What type of light source does the safety switch use?
The switch uses a visible red light LED as its light source, which is beneficial for alignment and diagnostics.
How is the safety switch mounted?
The switch is designed for screw mounting, making installation straightforward and secure.
What safety category does this switch meet?
This safety switch meets Category 2 safety requirements according to EN ISO 13849, making it suitable for applications where a high level of safety is required.
What is the power consumption of this device?
The device has a low power consumption, operating at less than or equal to 20 mA, making it an energy-efficient choice for continuous use.
What type of connection does the safety switch use?
The switch utilises an M12, 4-pin male connector, providing a secure and standardised connection for industrial applications.
