In sourcing discussions, RLY3-MULT100 is often placed next to Sick Diffuse Sensor, Sick Rly3 Ossd100 and Sick Safety Relay so procurement teams can align budgets and technical requirements effectively.
Sick RLY3-MULT100 Safety Relay
The RLY3-MULT100 Sick Safety Sensor Relayis a high-performance safety relay engineered for reliable signal switching in industrial safety applications. Designed for use with OSSDs, test inputs, and pressure mats, this unit enhances functional safety in automated machinery and factory systems.
| Brand | Sick |
| Product Type | Safety Relay |
| Product | RLY3-MULT100 |
Sick RLY3-MULT100 Safety Relay β Technical Specifications
| Specification | Value |
|---|---|
| Compatible sensor types | Safety sensors with OSSDs, Safety sensors with test input, Safety sensors with potential-free outputs, Safety pressure mats |
| Safety integrity level | SIL 3 (IEC 61508) |
| Category | Category 4 (ISO 13849-1) |
| Performance level | PL e (ISO 13849-1) |
| TM (mission time) | 20 years (ISO 13849-1) |
| Sensor monitoring | Discrepancy monitoring, Sequence monitoring, Cross-circuit detection |
| Restart interlock | β |
| Reset | Automatic, Manual |
| External device monitoring (EDM) | β |
| Connection type | Front connector with spring terminals |
| Inputs | 2 safety inputs,1 input for reset pushbutton or external device monitoring (EDM) |
| Outputs | 3 enabling current paths (safe), 2 application diagnostic outputs (not safe), 2 test pulse outputs (not safe) |
| Display elements | LEDs |
| Configuration method | Hard wired, DIP switch |
| Supply voltage VS | 24 V DC (16.8 V ... 30 V) |
| Residual ripple | β€ 2.4 V |
| Power consumption | β€ 2.5 W (DC) |
| Input voltage HIGH | 24 V DC (11 V ... 30 V) |
| Input voltage LOW | 0 V DC (β3 V ... 5 V) |
| Input current | β€ 60 mA |
| Test pulse width | β€ 1 ms |
| Test pulse rate | β€ 10 Hz |
| Response time | Depends on the configured sensor type, for details see operating instructions |
| Type of output | N/O contacts, positively guided |
| Contact material | Silver alloy, gold flashed |
| Switching voltage | 10 V AC ... 230 V AC, 10 V DC ... 230 V DC |
| Switching current | 10 mA ... 6 A |
| Total current | 12 A |
| Overvoltage category | III (EN 60664-1) |
| Rated impulse withstand voltage Uimp | 6 kV (EN 60664-1) |
| Output voltage HIGH | β₯ Vs β 3 V |
| Output voltage LOW | β€ 3 V |
| Input current (NPN) | β€ 15 mA |
| Output current (PNP) | β€ 120 mA |
| Output voltage | β₯ Vs β 3 V |
| Test pulse interval | Depends on the configured sensor type, for details see operating instructions |
| Dimensions (W x H x D) | 18 mm x 124.6 mm x 85.5 mm |
| Enclosure rating | IP20 (IEC 60529) |
| Ambient operating temperature | β25 Β°C ... +55 Β°C |
| Storage temperature | β25 Β°C ... +70 Β°C |
| Air humidity | β€ 95 %, Non-condensing |
| Interference emission | According to IEC 61000-6-4 |
| Interference resistance | According to IEC 61326-3-1, According to IEC 61000-6-2, According to IEC 60947-5-1 |
| Weight | 160 g |
Engineered for flexibility and high-integrity performance, the RLY3-MULT100 Sick Safety Sensor Relay supports a variety of safety sensor types, including OSSDs, test input sensors, potential-free outputs, and safety pressure mats. This makes it ideal for protecting personnel and assets in automated industrial environments. Compliant with SIL 3 (IEC 61508), PL e (ISO 13849-1), and Category 4 safety requirements, this relay provides long-term reliability with a 20-year mission time.
The RLY3-MULT100 features 2 safety inputs, one EDM/reset input, and 3 enabling current paths as safe outputs. In addition, it offers 2 diagnostic outputs and 2 test pulse outputs for robust system feedback. Designed with discrepancy monitoring, sequence monitoring, and cross-circuit detection, it delivers precise sensor validation. The front connector with spring terminals ensures fast, tool-less wiring in control cabinets.
Operating on 24 V DC (16.8 V β 30 V), the relay draws a maximum of 2.5 W, with β€ 2.4 V ripple and input current of β€ 60 mA. It is equipped with positively guided N/O contacts made from silver alloy, gold flashed, offering robust switching at 10 V to 230 V AC/DC and currents up to 6 A per contact. The device achieves rapid switching with a test pulse width of β€ 1 ms and a rate of β€ 10 Hz, while response time depends on sensor configuration.
Its compact size (18 mm x 124.6 mm x 85.5 mm), IP20 enclosure, and LED status indicators make it a space-saving, user-friendly addition to any safety system. The relay performs reliably across harsh industrial conditions, with ambient operating temperatures of β25 Β°C to +55 Β°C and humidity up to 95%. View full manufacturer specs or request a quote today for the Sick RLY3-MULT100 Safety Relay.
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