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From Fortune 500 enterprises to innovative startups, leading companies choose Marvo for reliable automation and control components.
"FIRST TIME WORKING WITH MARVO. THEY HAD WHAT I NEEDED AND TOOK GREAT CARE OF ME AND GOT MY ORDER OUT IMMEDITELY. WAS VERY IMPRESSED WITH THE SERVICE AND THE PERSON I SPOKE WITH. I WILL DEFINITELY WORK WITH THEM QGAIN IN THE FUTURE."
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.
| 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 |
Absolutely fantastic service. Rob was very helpful. Great communication. Requested part was shipped in no time.Konrad Eliaszuk
Found the component i was looking for ad a great price. Great support from the staff as I was paying using a wire transfer. - Quick delivery and very good packaging.Adriano Tiberi
Extremely Helpful. Shipped me a replacement unit next day and i was up and running within 24 hours. Replacement new from machinery manufacturers was on a 7 day lead time.Sean Conlin
Found the part we needed at the best price. Spoke to Rob to make sure the part was actually in stock, as many companies don't actually have the part available to ship. It was in stock ready and the part was checked and shipped and received within a couple of days from their German stock. Would definitely use again and recommend.Chris Sentance
FIRST TIME WORKING WITH MARVO. THEY HAD WHAT I NEEDED AND TOOK GREAT CARE OF ME AND GOT MY ORDER OUT IMMEDITELY. WAS VERY IMPRESSED WITH THE SERVICE AND THE PERSON I SPOKE WITH. I WILL DEFINITELY WORK WITH THEM QGAIN IN THE FUTURE.Robert Cohen
Excellent service partially from Mark who stayed late to ensure the part arrived with me same day as this was a critical part for me even though this was my first time using Marvo. I will defiantly be using again.Josh Holt
Thumbs up to Rob for helping out with an urgent requirement we had on a Friday afternoon. The part we wanted was over in Europe and Rob went out of his way to get it ordered and on site here for the following Tuesday.City Bearings
Absolutely fantastic service. Rob was very helpful. Great communication. Requested part was shipped in no time.Konrad Eliaszuk
Extremely Helpful. Shipped me a replacement unit next day and i was up and running within 24 hours. Replacement new from machinery manufacturers was on a 7 day lead time.Sean Conlin
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