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"Absolutely fantastic service. Rob was very helpful. Great communication. Requested part was shipped in no time."
The Sick RLY3-OSSD300 is a robust safety relay designed to enhance the safety and efficiency of industrial automation systems. Operating on a supply voltage of 24 V DC, this relay is engineered to handle a range of input voltages from 16.8 V to 30 V, ensuring reliable performance even in fluctuating power conditions. With a power consumption of just 2.5 W, it is an energy-efficient choice for modern facilities.
This safety relay features two safety inputs and a reset pushbutton or external device monitoring (EDM) input, providing flexibility in integration with various safety systems. The relay's enabling current paths include three normally open contacts with positively guided operation, ensuring secure and dependable switching. These contacts are crafted from a silver alloy with a gold flash, supporting a wide switching voltage range from 10 V to 230 V AC/DC and a switching current capacity of up to 6 A.
The RLY3-OSSD300 is equipped with two application diagnostic outputs, offering push-pull semiconductor outputs that are short-circuit protected, enhancing the relay's durability and reliability. Its compact design, with dimensions of 18 mm x 124.6 mm x 85.5 mm, and a weight of 150 g, makes it suitable for space-constrained environments. The relay operates effectively within a temperature range of -25 °C to +55 °C and is classified under overvoltage category III, with a rated impulse withstand voltage of 6 kV.
Ideal for a variety of industrial applications, the Sick RLY3-OSSD300 safety relay is a versatile and reliable component for ensuring operational safety and efficiency.
| Specification | Description |
|---|---|
| Part Number | RLY3-OSSD300 |
| Manufacturer | Sick |
| Category | Safety Relays |
| Electrical Supply | PELV or SELV, 24 V DC (16.8 V ... 30 V) |
| Ripple | ≤ 2.4 V |
| Power Consumption | ≤ 2.5 W (DC) |
| Safety Inputs | 2 inputs, HIGH: 24 V DC (11 V ... 30 V), LOW: 0 V DC (–3 V ... 5 V), Input current: 4 mA ... 6 mA |
| Reset Input | 1 input for reset button or contactor monitoring (EDM), HIGH: 24 V DC (11 V ... 30 V), LOW: 0 V DC (–3 V ... 5 V), Input current: 4 mA ... 6 mA |
| Release Circuits | 3 normally open contacts, forced-guided, Response time: 12 ms, Switching voltage: 10 V AC ... 230 V AC / 10 V DC ... 230 V DC, Switching current: 10 mA ... 6 A, Total current: 12 A |
| Mechanical Life | 1 x 10⁷ switching cycles |
| Overvoltage Category | III (EN 60664-1) |
| Impulse Withstand Voltage | 6 kV (EN 60664-1) |
| Status Outputs | 2 push-pull semiconductor outputs, short-circuit protected, Output voltage: HIGH ≥ UV – 3 V, LOW ≤ 3 V, Input current (NPN): ≤ 15 mA, Output current (PNP): ≤ 120 mA |
| Test Pulse Outputs | 1 PNP semiconductor, short-circuit protected, Output voltage: ≥ UV – 3 V, Test pulse width: 2 ms, Test pulse interval: 40 ms |
| Dimensions | 18 mm x 124.6 mm x 85.5 mm |
| Weight | 150 g |
| Protection Class | IP20 (IEC 60529) |
| Operating Temperature | –25 °C ... +55 °C |
| Storage Temperature | –25 °C ... +70 °C |
| Humidity | ≤ 95 %, non-condensing |
| Emission | According to IEC 61000-6-4 |
| Immunity | According to IEC 61326-3-1, IEC 61000-6-2, IEC 60947-5-1 |
| Safety Integrity Level | SIL 3 (IEC 61508) |
| Performance Level | PL e (ISO 13849-1) |
| Category | Category 4 (ISO 13849-1) |
| PFHD | 1.0 x 10⁻⁹ |
| TM (Mission Time) | 20 years (ISO 13849-1) |
| Stop Category | 0 (IEC 60204-1) |
| Features | Sensor monitoring, Sequence monitoring, Restart interlock, Automatic and manual reset, Contactor monitoring (EDM) |
| Connections | Front plug with spring terminals, 2 safety inputs, 1 input for reset button or contactor monitoring (EDM), 3 safety outputs, 2 status outputs, 1 test pulse output, LEDs for status display, Configuration via wiring |
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
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
After ordering an urgent part from Marvo i received a great level of customer service and Rob was very helpful.Claire Hinchliff
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
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
After ordering an urgent part from Marvo i received a great level of customer service and Rob was very helpful.Claire Hinchliff
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