The Contrinex YRB-4EML-31S safety relay data sheet provides technical specifications, application areas, and safety parameters.
The YRB-4EML-31S is an electromechanically forced‑guided, dust‑proof safety relay designed for safety light curtains, barriers, emergency stop systems and safety door locking mechanisms. It offers three enabling current paths, a monitoring contact, LED status indicators and DIN‑rail mounting.
The data sheet lists detailed electrical characteristics, mechanical dimensions, environmental limits and certification information (TÜV, CE, UL). Application examples illustrate two‑channel emergency‑stop and safety‑door monitoring circuits suitable for safety categories up to PL e and SIL 3.
| Nominal input voltage | 24 V AC/DC |
|---|---|
| Typical input current | 150 mA AC / 70 mA DC |
| Typical response time (manual start) | 25 ms |
| Maximum switching voltage | 250 V AC/DC |
| Limiting continuous current | 6 A |
| Mechanical service life | ≈ 10⁷ cycles |
| Dimensions (W×H×D) | 22.5 × 99 × 114.5 mm |
| Degree of protection | IP20 (min.) / IP54 |
| Rated insulation voltage | 250 V |
| Operating temperature range | -20 °C … 55 °C |
The relay operates at a nominal input voltage of 24 V AC/DC.
Typical response time is 25 ms for manual start.
The maximum switching voltage is 250 V AC/DC.