In most procurement cycles, RLY3-LOOP100 is considered with Sick Diffuse Sensor, Sick Rly3 Ossd100 and Sick Safety Relay, giving decision-makers confidence that theyโve chosen the most dependable component.
Sick RLY3-LOOP100 Safety Relay
The Sick RLY3-LOOP100 Safety Relay is a high-integrity safety relay designed for seamless integration in Flexi Loop safe series circuits. Engineered for industrial automation systems requiring reliable signal transmission and advanced safety monitoring, it ensures SIL 3 protection in compact spaces.
| Brand | Sick |
| Product Type | Safety Relay |
| Product | RLY3-LOOP100 |
Sick RLY3-LOOP100 Safety Relay โ Technical Specifications
| Specification | Value |
|---|---|
| Compatible sensor types | Flexi Loop safe series connection |
| 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 | โ |
| Restart interlock | โ |
| Reset | Automatic, Manual |
| External device monitoring (EDM) | โ |
| 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), 1 test pulse output (not safe) |
| Display elements | LEDs |
| Configuration method | Hard wired, DIP switch |
| Supply voltage VS | 24 V DC (16.8 V ... 30 V) |
| Residual ripple | โค 2.4 V |
| Power consumption | โค 2.5 W (DC) |
| Input voltage HIGH | 24 V DC (11 V ... 30 V) |
| Input voltage LOW | 0 V DC (โ3 V ... 5 V) |
| Input current | 4 mA ... 6 mA |
| Test pulse width | - |
| Test pulse rate | - |
| Response time | 79 ms |
| 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 | โฅ Vs โ 3 V |
| Output voltage LOW | โค 3 V |
| Input current (NPN) | โค 15 mA |
| Output current (PNP) | โค 120 mA |
| Output voltage | โฅ Vs โ 3 V |
| Test pulse interval | 40 ms |
| Dimensions (W x H x D) | 18 mm x 124.6 mm x 85.5 mm |
| Enclosure rating | IP20 (IEC 60529) |
| Ambient operating temperature | โ25 ยฐC ... +55 ยฐC |
| Storage temperature | โ25 ยฐC ... +70 ยฐC |
| Air humidity | โค 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 |
Built for modern safety architectures, the Sick RLY3-LOOP100 Safety Relay offers advanced features tailored for Flexi Loop safe series connections. Certified to meet SIL 3 (IEC 61508), Category 4 (ISO 13849-1), and PL e safety performance levels, this safety relay ensures dependable control and monitoring in hazardous machine environments. With a 20-year mission time, it supports long-term system reliability for OEMs and system integrators focused on machine safety compliance.
The device includes 2 safety inputs and an additional input for external device monitoring (EDM) or reset functions. It delivers 3 enabling current paths (safe), 2 diagnostic outputs (not safe), and 1 test pulse output. Setup is made simple with a hard-wired and DIP switch configuration, allowing easy adaptation without software programming. The response time is rated at 79 ms, while input voltage ranges from 11 V to 30 V DC, with a nominal 24 V DC supply and ripple โค 2.4 V. Its power consumption is โค 2.5 W, ensuring energy efficiency across use cases.
Other key specs include N/O contacts with silver alloy, gold-flashed terminals, capable of handling 10 mA to 6 A switching current and up to 230 V AC/DC. With an IP20-rated enclosure, compact size of 18 mm x 124.6 mm x 85.5 mm, and ambient operation range from โ25 ยฐC to +55 ยฐC, it is suitable for panel installations in industrial settings. The relay supports cross-circuit detection, discrepancy monitoring, and sequence monitoringโcritical for layered safety architectures.
If you're looking for a robust, field-proven safety relay that integrates with Sick's Flexi Loop ecosystem, the RLY3-LOOP100 delivers unmatched performance. View full technical documentation or reach out for a quote that suits your automation and safety requirements.
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